diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index d5e25c3..8782533 100644
--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -70,8 +70,7 @@
       }
     ],
     "direction": "horizontal",
-    "width": 200,
-    "collapsed": true
+    "width": 200
   },
   "right": {
     "id": "ee8f6df41634f71e",
@@ -156,7 +155,7 @@
       }
     ],
     "direction": "horizontal",
-    "width": 200
+    "width": 417.5
   },
   "left-ribbon": {
     "hiddenItems": {
@@ -167,42 +166,42 @@
       "switcher:Open quick switcher": false
     }
   },
-  "active": "f5285cbbb611ecba",
+  "active": "671043c113c40804",
   "lastOpenFiles": [
-    "Semester 2/Programming 2/Assessment 4 Notes",
+    "Semester 2/Programming 2/Project/Part 2/package.bluej",
+    "Semester 2/Programming 2/Project/Part 2",
+    "Semester 2/Programming 2/Project/Part 4 Complete.zip",
+    "Semester 2/Programming 2/Project/Part 4 Complete/doc/resources/inherit.gif",
+    "Semester 2/Programming 2/Project/Part 4 Complete/doc/stylesheet.css",
+    "Semester 2/Programming 2/Project/Part 4 Complete/doc/resources",
+    "Semester 2/Programming 2/Project/Part 4 Complete/doc/package-summary.html",
+    "Semester 2/Programming 2/Project/Part 4 Complete/doc/package-list",
+    "Semester 2/Programming 2/Project/Part 4 Complete/doc/package-frame.html",
+    "Semester 2/Programming 2/Project/Part 4 Complete/doc/logfile.txt",
+    "Semester 2/Programming 2/Project/Part 4 Complete/doc/index.html",
+    "Semester 2/Programming 2/Project/Part 4 Complete/doc/constant-values.html",
     "images/Pasted image 20240319234142.png",
     "images/Pasted image 20240319225420.png",
     "Semester 2/Programming 2/Week 10 Revision/Q4.md",
     "Semester 2/Programming 2/Week 10 Revision/Q5.md",
     "images/Pasted image 20240319224232.png",
     "Semester 2/Programming 2/Week 10 Revision/Q3.md",
-    "Semester 2/Database Systems/Exercise Booklet.pdf",
-    "Semester 2/Database Systems/Booklet of Lecture Slides for Semester Two (2).pdf",
     "Semester 2/Database Systems/Week 10/Week 10 Database Systems.md",
     "images/Pasted image 20240319163053.png",
     "images/Pasted image 20240319162824.png",
     "images/Pasted image 20240319161202.png",
     "images/Pasted image 20240319160609.png",
     "Semester 2/Programming 2/Week 10 Revision/Q1.md",
-    "Semester 2/Programming 2/Week 10 Revision",
     "Semester 2/Database Systems/Week 2/Week 2 Database Systems.md",
     "Semester 2/Database Systems/Week 1/Week 1 Database Systems.md",
     "Semester 1/Database Systems/Week 10/Week 10 Database Systems.md",
     "Semester 2/Database Systems/Week 3/Week 3 Database Systems.md",
     "Semester 2/Database Systems/Week 4/Week 4 Database Systems.md",
-    "Semester 2/Database Systems/Week 10",
     "Semester 2/Database Systems/Week 9/Week 9 Database Systems.md",
     "images/Pasted image 20240312161933.png",
     "images/Pasted image 20240312161927.png",
-    "images/Pasted image 20240312161656.png",
     "Semester 2/Database Systems/Week 8/Week 8 Database Systems.md",
-    "Semester 2/Database Systems/Week 9",
-    "Semester 2/Untitled",
-    "Semester 2/Programming 2/Project/Part 2/__SHELL1.class",
-    "Semester 2/Programming 2/Project/Part 2/__SHELL1.java",
-    "Semester 2/Programming 2/Project/Part 2/Library.java#",
     "Semester 2/Database Systems/Week 7/Week 7 Database Systems.md",
-    "Semester 2/Programming 2/Project/Part 2/Book.java#",
     "Semester 2/Database Systems/Week 6/Week 6 Database Systems.md",
     "Semester 2/Computer Systems Internals & Linux/Week 6/Week 6 Computer Systems Internals.md",
     "Semester 2/Programming 2/Assessment 3 Revision/Parameter Passing WS3.md",
diff --git a/Semester 2/Programming 2/Project/Part 2/Library.class b/Semester 2/Programming 2/Project/Part 2/Library.class
deleted file mode 100644
index 03f2c79..0000000
Binary files a/Semester 2/Programming 2/Project/Part 2/Library.class and /dev/null differ
diff --git a/Semester 2/Programming 2/Project/Part 2/Library.ctxt b/Semester 2/Programming 2/Project/Part 2/Library.ctxt
deleted file mode 100644
index 51b5b4d..0000000
--- a/Semester 2/Programming 2/Project/Part 2/Library.ctxt	
+++ /dev/null
@@ -1,45 +0,0 @@
-#BlueJ class context
-comment0.params=
-comment0.target=Library()
-comment0.text=\n\ Constructor\ for\ objects\ of\ class\ Library\n
-comment1.params=item
-comment1.target=void\ storeItem(LibraryItem)
-comment1.text=\n\ Inserts\ object\ value\ item\ alongside\ key\ of\ @itemCode\ into\ @itemsMap.\n
-comment10.params=
-comment10.target=void\ writeUserData()
-comment10.text=\n\ A\ method\ to\ output\ all\ user\ data\ to\ a\ file\ using\ a\ fileDialog\ to\ specify\ file\ location.\n\ \n
-comment11.params=
-comment11.target=void\ readLibraryReservationData()
-comment11.text=\n\ Read\ Library\ Reservation\ Data\ from\ a\ file\ specified\ by\ the\ user.\n
-comment12.params=
-comment12.target=void\ readData()
-comment12.text=\n\ A\ method\ to\ read\ all\ data\ from\ files\ using\ a\ fileDialog\ to\ specify\ file\ location.\n\ This\ will\ create\ the\ corresponding\ objects\ depending\ on\ flags\ contained\ in\ the\ file\n\ and\ populate\ it's\ fields.\n\ \n\ Default\ flag\ value\:\ "book",\ to\ support\ legacy\ files.\ This\ will\ not\ interfere\ with\ \n\ files\ of\ different\ flag\ orders.\n
-comment13.params=userID\ itemCode\ startDate\ noOfDays
-comment13.target=boolean\ makeLibraryReservation(java.lang.String,\ java.lang.String,\ java.lang.String,\ int)
-comment13.text=\n\ Create\ a\ reservation\ to\ allow\ a\ user\ to\ reserve\ an\ item\ from\ the\ library.\n
-comment14.params=reservationNo
-comment14.target=void\ deleteLibraryReservation(java.lang.String)
-comment2.params=user
-comment2.target=void\ storeUser(LibraryUser)
-comment2.text=\n\ Inserts\ object\ value\ user\ alongside\ key\ of\ @userID\ into\ @customerMap.\n\ If\ the\ userID\ is\ set\ to\ unknown,\ it\ will\ call\ @generateUserID.\n
-comment3.params=reservation
-comment3.target=void\ storeLibraryReservation(LibraryReservation)
-comment3.text=\n\ Inserts\ object\ value\ reservation\ alongside\ key\ of\ @reservationNo\ into\ @libraryReservationMap.\n
-comment4.params=
-comment4.target=java.lang.String\ generateReservationNo()
-comment4.text=\n\ Generate\ a\ sequential\ reservation\ number.\ Since\ Maps\ do\ not\ have\ an\ index,\ we\ cannot\ simply\ get\ the\ last\ value,\ \n\ and\ recursion\ would\ be\ too\ intensive\ for\ this\ application.\ As\ a\ placeholder\ for\ the\ file\ output,\ a\ field\ variable\n\ is\ used\ to\ hold\ the\ last\ highest\ value\ for\ the\ reservation\ number.\ Unlike\ @generateUserID,\ this\ has\ a\ maximum\ value\n\ hardcoded\ to\ the\ spec.\ This\ likely\ will\ not\ be\ an\ issue\ since\ we\ can\ still\ have\ 1,000,000\ reservations.\n
-comment5.params=prefix\ length
-comment5.target=java.lang.String\ generateUserID(java.lang.String,\ int)
-comment5.text=\n\ Returns\ a\ random\ unique\ user\ ID\ by\ specifying\ \n\ @prefix\ -\ arbitrary\ alphanumeric\ prefix\n\ @length\ -\ length\ of\ numeric\ ID\n\ and\ returning\ a\ unique\ user\ id\n\ @uuid\ -\ a\ unique\ string\ starting\ with\ @prefix,\ and\ concat.\ with\ a\ random\ number\n\ \n\ Example\:\ length\ \=\ 6,\ expected\ result\ should\ be\ under\ 999,999\ and\ above\ 99,999.\n\ If\ we\ just\ use\ 10^(length),\ this\ would\ generate\ any\ number\ under\ 1,000,000.\n\ This\ is\ an\ issue\ since\ any\ integers\ below\ 100,000\ can\ be\ used,\ which\ would\ be\ incorrect.\n\ By\ using\ the\ offset\ of\ a\ factor\ of\ 10\ below\ the\ desired\ length\ we\ can\ generate\ between\ 0\ and\ 899,999.\n\ After\ this,\ we\ can\ add\ 100,000\ back\ to\ the\ number\ to\ ensure\ a\ baseline\ length\ is\ maintained.\n\ \n\ Note\:\ I\ am\ aware\ that\ this\ is\ overengineered,\ and\ that\ several\ random\ integers\ of\ amount\ @length\ could\ be\ used,\ \n\ but\ this\ is\ considerably\ more\ efficient\ since\ there\ is\ no\ iteration\ involved\ in\ the\ creation\ of\ the\ ID.\ O(1)\n
-comment6.params=
-comment6.target=void\ printLibraryReservations()
-comment6.text=\n\ Prints\ to\ the\ terminal,\ in\ a\ human-readable\ format,\ library\ reservation\ in\ the\ itemList\n\ \n\ Contains\ a\ marker\ at\ the\ start\ and\ end\ to\ visualise\ in\ terminal\ output.\n
-comment7.params=
-comment7.target=void\ printAll()
-comment7.text=\n\ Prints\ to\ the\ terminal,\ in\ a\ human-readable\ format,\ all\ items\ in\ the\ itemList\n\ \n\ Contains\ a\ marker\ at\ the\ start\ and\ end\ to\ visualise\ in\ terminal\ output.\n
-comment8.params=start\ end
-comment8.target=void\ printDiaryEntries(java.lang.String,\ java.lang.String)
-comment9.params=
-comment9.target=void\ writeLibraryReservationData()
-comment9.text=\n\ Write\ all\ current\ library\ reservations\ to\ a\ file\ specified\ by\ the\ user.\n
-numComments=15
diff --git a/Semester 2/Programming 2/Project/Part 2/LibraryReservation.class b/Semester 2/Programming 2/Project/Part 2/LibraryReservation.class
deleted file mode 100644
index 082b381..0000000
Binary files a/Semester 2/Programming 2/Project/Part 2/LibraryReservation.class and /dev/null differ
diff --git a/Semester 2/Programming 2/Project/Part 2/LibraryReservation.ctxt b/Semester 2/Programming 2/Project/Part 2/LibraryReservation.ctxt
deleted file mode 100644
index 82c5814..0000000
--- a/Semester 2/Programming 2/Project/Part 2/LibraryReservation.ctxt	
+++ /dev/null
@@ -1,46 +0,0 @@
-#BlueJ class context
-comment0.params=reservationNo\ itemCode\ userID\ startDate\ noOfDays
-comment0.target=LibraryReservation(java.lang.String,\ java.lang.String,\ java.lang.String,\ java.lang.String,\ int)
-comment0.text=\n\ Constructor\ for\ objects\ of\ class\ LibraryReservation\n
-comment1.params=
-comment1.target=LibraryReservation()
-comment10.params=
-comment10.target=int\ getNoOfDays()
-comment10.text=\n\ Return\ value\ of\ @noOfDays\n
-comment11.params=reservationNo
-comment11.target=void\ setReservationNo(java.lang.String)
-comment11.text=\n\ Set\ @reservationNo\ to\ a\ new\ value\n
-comment12.params=itemCode
-comment12.target=void\ setItemCode(java.lang.String)
-comment12.text=\n\ Set\ @itemCode\ to\ a\ new\ value\n
-comment13.params=userID
-comment13.target=void\ setUserID(java.lang.String)
-comment13.text=\n\ Set\ @userID\ to\ a\ new\ value\n
-comment14.params=startDate
-comment14.target=void\ setStartDate(java.lang.String)
-comment14.text=\n\ Set\ @startDate\ to\ a\ new\ value\n
-comment15.params=noOfDays
-comment15.target=void\ setNoOfDays(int)
-comment15.text=\n\ Set\ @noOfDays\ to\ a\ new\ value\n
-comment2.params=
-comment2.target=java.lang.String\ toString()
-comment3.params=
-comment3.target=void\ printDetails()
-comment3.text=\n\ Prints\ to\ terminal,\ the\ details\ of\ the\ reservation.\n
-comment4.params=writer
-comment4.target=void\ writeData(java.io.PrintWriter)
-comment5.params=detailScanner
-comment5.target=void\ readData(java.util.Scanner)
-comment6.params=
-comment6.target=java.lang.String\ getReservationNo()
-comment6.text=\n\ Return\ value\ of\ @reservationNo\n
-comment7.params=
-comment7.target=java.lang.String\ getItemCode()
-comment7.text=\n\ Return\ value\ of\ @itemCode\n
-comment8.params=
-comment8.target=java.lang.String\ getUserID()
-comment8.text=\n\ Return\ value\ of\ @userID\n
-comment9.params=
-comment9.target=java.util.Date\ getStartDate()
-comment9.text=\n\ Return\ value\ of\ @startDate\n
-numComments=16
diff --git a/Semester 2/Programming 2/Project/Part 2/package.bluej b/Semester 2/Programming 2/Project/Part 2/package.bluej
index 30276f6..2ed3928 100644
--- a/Semester 2/Programming 2/Project/Part 2/package.bluej	
+++ b/Semester 2/Programming 2/Project/Part 2/package.bluej	
@@ -2,6 +2,15 @@
 dependency1.from=Library
 dependency1.to=Book
 dependency1.type=UsesDependency
+dependency10.from=Diary
+dependency10.to=LibraryReservation
+dependency10.type=UsesDependency
+dependency11.from=Diary
+dependency11.to=DateUtil
+dependency11.type=UsesDependency
+dependency12.from=Library
+dependency12.to=Diary
+dependency12.type=UsesDependency
 dependency2.from=Library
 dependency2.to=Periodical
 dependency2.type=UsesDependency
@@ -23,157 +32,173 @@ dependency7.type=UsesDependency
 dependency8.from=Library
 dependency8.to=LibraryReservation
 dependency8.type=UsesDependency
+dependency9.from=Library
+dependency9.to=DateUtil
+dependency9.type=UsesDependency
 objectbench.height=76
 objectbench.width=940
 package.editor.height=874
 package.editor.width=814
-package.editor.x=0
-package.editor.y=31
-package.numDependencies=8
-package.numTargets=11
+package.editor.x=861
+package.editor.y=66
+package.numDependencies=12
+package.numTargets=12
 package.showExtends=true
 package.showUses=true
 project.charset=UTF-8
-target1.editor.height=700
-target1.editor.width=900
-target1.editor.x=1017
-target1.editor.y=76
+target1.editor.height=786
+target1.editor.width=960
+target1.editor.x=34
+target1.editor.y=174
 target1.height=50
-target1.name=PrintedItem
+target1.name=CD
 target1.naviview.expanded=true
 target1.showInterface=false
-target1.type=AbstractTarget
+target1.type=ClassTarget
 target1.typeParameters=
-target1.width=110
-target1.x=130
-target1.y=240
-target10.editor.height=700
-target10.editor.width=900
-target10.editor.x=960
-target10.editor.y=146
+target1.width=80
+target1.x=360
+target1.y=340
+target10.editor.height=1049
+target10.editor.width=1920
+target10.editor.x=0
+target10.editor.y=31
 target10.height=50
-target10.name=AudioVisual
+target10.name=Book
 target10.naviview.expanded=true
 target10.showInterface=false
-target10.type=AbstractTarget
+target10.type=ClassTarget
 target10.typeParameters=
-target10.width=110
-target10.x=380
-target10.y=240
-target11.editor.height=700
-target11.editor.width=900
-target11.editor.x=40
-target11.editor.y=51
+target10.width=80
+target10.x=180
+target10.y=340
+target11.editor.height=1049
+target11.editor.width=1920
+target11.editor.x=0
+target11.editor.y=31
 target11.height=50
-target11.name=LibraryReservation
+target11.name=Library
 target11.naviview.expanded=true
 target11.showInterface=false
 target11.type=ClassTarget
 target11.typeParameters=
-target11.width=160
-target11.x=230
-target11.y=440
-target2.editor.height=786
-target2.editor.width=960
-target2.editor.x=34
-target2.editor.y=174
-target2.height=50
-target2.name=CD
+target11.width=100
+target11.x=260
+target11.y=240
+target12.editor.height=700
+target12.editor.width=900
+target12.editor.x=960
+target12.editor.y=146
+target12.height=50
+target12.name=AudioVisual
+target12.naviview.expanded=true
+target12.showInterface=false
+target12.type=AbstractTarget
+target12.typeParameters=
+target12.width=110
+target12.x=380
+target12.y=240
+target2.editor.height=1049
+target2.editor.width=1920
+target2.editor.x=0
+target2.editor.y=31
+target2.height=60
+target2.name=LibraryItem
 target2.naviview.expanded=true
 target2.showInterface=false
-target2.type=ClassTarget
+target2.type=AbstractTarget
 target2.typeParameters=
-target2.width=80
-target2.x=360
-target2.y=340
+target2.width=120
+target2.x=250
+target2.y=110
 target3.editor.height=700
-target3.editor.width=900
-target3.editor.x=557
-target3.editor.y=177
-target3.height=60
-target3.name=LibraryItem
+target3.editor.width=1619
+target3.editor.x=192
+target3.editor.y=267
+target3.height=50
+target3.name=Periodical
 target3.naviview.expanded=true
 target3.showInterface=false
-target3.type=AbstractTarget
+target3.type=ClassTarget
 target3.typeParameters=
-target3.width=120
-target3.x=250
-target3.y=110
-target4.editor.height=1049
-target4.editor.width=1920
-target4.editor.x=0
-target4.editor.y=31
+target3.width=90
+target3.x=60
+target3.y=380
+target4.editor.height=700
+target4.editor.width=900
+target4.editor.x=40
+target4.editor.y=51
 target4.height=50
-target4.name=DVD
+target4.name=DateUtil
 target4.naviview.expanded=true
-target4.showInterface=false
+target4.showInterface=true
 target4.type=ClassTarget
 target4.typeParameters=
 target4.width=80
-target4.x=470
-target4.y=380
+target4.x=70
+target4.y=10
 target5.editor.height=700
 target5.editor.width=900
-target5.editor.x=55
-target5.editor.y=274
+target5.editor.x=967
+target5.editor.y=142
 target5.height=50
-target5.name=LibraryUser
+target5.name=Diary
 target5.naviview.expanded=true
 target5.showInterface=false
 target5.type=ClassTarget
 target5.typeParameters=
-target5.width=110
-target5.x=100
-target5.y=170
-target6.editor.height=700
-target6.editor.width=1619
-target6.editor.x=192
-target6.editor.y=267
+target5.width=80
+target5.x=530
+target5.y=240
+target6.editor.height=1049
+target6.editor.width=960
+target6.editor.x=960
+target6.editor.y=31
 target6.height=50
-target6.name=Periodical
+target6.name=LibraryReservation
 target6.naviview.expanded=true
 target6.showInterface=false
 target6.type=ClassTarget
 target6.typeParameters=
-target6.width=90
-target6.x=60
-target6.y=380
-target7.editor.height=1049
-target7.editor.width=1920
-target7.editor.x=0
-target7.editor.y=31
+target6.width=160
+target6.x=230
+target6.y=440
+target7.editor.height=700
+target7.editor.width=900
+target7.editor.x=1017
+target7.editor.y=76
 target7.height=50
-target7.name=Book
+target7.name=PrintedItem
 target7.naviview.expanded=true
 target7.showInterface=false
-target7.type=ClassTarget
+target7.type=AbstractTarget
 target7.typeParameters=
-target7.width=80
-target7.x=180
-target7.y=340
-target8.editor.height=700
-target8.editor.width=900
-target8.editor.x=40
-target8.editor.y=51
+target7.width=110
+target7.x=130
+target7.y=240
+target8.editor.height=1049
+target8.editor.width=1920
+target8.editor.x=0
+target8.editor.y=31
 target8.height=50
-target8.name=DateUtil
+target8.name=DVD
 target8.naviview.expanded=true
 target8.showInterface=false
 target8.type=ClassTarget
 target8.typeParameters=
 target8.width=80
-target8.x=70
-target8.y=10
+target8.x=470
+target8.y=380
 target9.editor.height=1049
-target9.editor.width=1920
+target9.editor.width=960
 target9.editor.x=0
 target9.editor.y=31
 target9.height=50
-target9.name=Library
+target9.name=LibraryUser
 target9.naviview.expanded=true
 target9.showInterface=false
 target9.type=ClassTarget
 target9.typeParameters=
-target9.width=100
-target9.x=260
-target9.y=240
+target9.width=110
+target9.x=100
+target9.y=170
diff --git a/Semester 2/Programming 2/Project/Part 4 Complete.zip b/Semester 2/Programming 2/Project/Part 4 Complete.zip
new file mode 100644
index 0000000..0fa8163
Binary files /dev/null and b/Semester 2/Programming 2/Project/Part 4 Complete.zip differ
diff --git a/Semester 2/Programming 2/Project/Part 2/AudioVisual.class b/Semester 2/Programming 2/Project/Part 4 Complete/AudioVisual.class
similarity index 95%
rename from Semester 2/Programming 2/Project/Part 2/AudioVisual.class
rename to Semester 2/Programming 2/Project/Part 4 Complete/AudioVisual.class
index 5c3c0fc..9f2fb15 100644
Binary files a/Semester 2/Programming 2/Project/Part 2/AudioVisual.class and b/Semester 2/Programming 2/Project/Part 4 Complete/AudioVisual.class differ
diff --git a/Semester 2/Programming 2/Project/Part 2/AudioVisual.ctxt b/Semester 2/Programming 2/Project/Part 4 Complete/AudioVisual.ctxt
similarity index 78%
rename from Semester 2/Programming 2/Project/Part 2/AudioVisual.ctxt
rename to Semester 2/Programming 2/Project/Part 4 Complete/AudioVisual.ctxt
index f36b616..e411e1b 100644
--- a/Semester 2/Programming 2/Project/Part 2/AudioVisual.ctxt	
+++ b/Semester 2/Programming 2/Project/Part 4 Complete/AudioVisual.ctxt	
@@ -10,4 +10,5 @@ comment2.target=void\ printDetails()
 comment2.text=\n\ Field\ Mutator\ End\n
 comment3.params=detailScanner
 comment3.target=void\ readItemData(java.util.Scanner)
+comment3.text=\n\ Populate\ the\ fields\ with\ details\ from\ the\ scanner\n\ Takes\ Parameters\n\ \ Scanner\ @detailScanner\n
 numComments=4
diff --git a/Semester 2/Programming 2/Project/Part 2/AudioVisual.java b/Semester 2/Programming 2/Project/Part 4 Complete/AudioVisual.java
similarity index 87%
rename from Semester 2/Programming 2/Project/Part 2/AudioVisual.java
rename to Semester 2/Programming 2/Project/Part 4 Complete/AudioVisual.java
index 3db6f9d..86d9410 100644
--- a/Semester 2/Programming 2/Project/Part 2/AudioVisual.java	
+++ b/Semester 2/Programming 2/Project/Part 4 Complete/AudioVisual.java	
@@ -3,7 +3,7 @@
  * Subclass of LibraryItem to create objects of audio and visual items in a library.
  * 
  * @George Wilkinson
- * @1.0
+ * @1.2
  */
 
 import java.util.Scanner;
@@ -41,6 +41,11 @@ public abstract class AudioVisual extends LibraryItem
         super.printDetails();
     }
     
+    /**
+     * Populate the fields with details from the scanner
+     * Takes Parameters
+     *  Scanner @detailScanner
+     */
     public void readItemData( Scanner detailScanner ){
         if ( detailScanner != null ) {
             this.playingTime = Integer.parseInt( detailScanner.next().trim() );
diff --git a/Semester 2/Programming 2/Project/Part 2/Book.class b/Semester 2/Programming 2/Project/Part 4 Complete/Book.class
similarity index 63%
rename from Semester 2/Programming 2/Project/Part 2/Book.class
rename to Semester 2/Programming 2/Project/Part 4 Complete/Book.class
index 317197a..ae7c711 100644
Binary files a/Semester 2/Programming 2/Project/Part 2/Book.class and b/Semester 2/Programming 2/Project/Part 4 Complete/Book.class differ
diff --git a/Semester 2/Programming 2/Project/Part 2/Book.ctxt b/Semester 2/Programming 2/Project/Part 4 Complete/Book.ctxt
similarity index 87%
rename from Semester 2/Programming 2/Project/Part 2/Book.ctxt
rename to Semester 2/Programming 2/Project/Part 4 Complete/Book.ctxt
index c2a789d..b1850d4 100644
--- a/Semester 2/Programming 2/Project/Part 2/Book.ctxt	
+++ b/Semester 2/Programming 2/Project/Part 4 Complete/Book.ctxt	
@@ -19,5 +19,5 @@ comment5.target=void\ printDetails()
 comment5.text=\n\ Print\ to\ terminal,\ relevant\ details\ of\ current\ object.\n
 comment6.params=detailScanner
 comment6.target=void\ readItemData(java.util.Scanner)
-comment6.text=\n\ Passed\ a\ scanner\ object,\ set\ field\ variables\ to\ corresponding\ values.\n
+comment6.text=\n\ Populate\ the\ fields\ with\ details\ from\ the\ scanner\n\ Takes\ Parameters\n\ \ Scanner\ @detailScanner\n
 numComments=7
diff --git a/Semester 2/Programming 2/Project/Part 2/Book.java b/Semester 2/Programming 2/Project/Part 4 Complete/Book.java
similarity index 88%
rename from Semester 2/Programming 2/Project/Part 2/Book.java
rename to Semester 2/Programming 2/Project/Part 4 Complete/Book.java
index edc12a2..9b5709f 100644
--- a/Semester 2/Programming 2/Project/Part 2/Book.java	
+++ b/Semester 2/Programming 2/Project/Part 4 Complete/Book.java	
@@ -3,10 +3,11 @@
  * Subclass of LibraryItem that emulates a Book item.
  * 
  * @George Wilkinson 
- * @2.3
+ * @2.5
  */
 
 import java.util.Scanner;
+import java.util.NoSuchElementException;
 
 public class Book extends PrintedItem
 {
@@ -60,8 +61,10 @@ public class Book extends PrintedItem
         super.printDetails();
     }
     
-    /*
-     * Passed a scanner object, set field variables to corresponding values.
+    /**
+     * Populate the fields with details from the scanner
+     * Takes Parameters
+     *  Scanner @detailScanner
      */
     public void readItemData( Scanner detailScanner ){
         if ( detailScanner != null ) {
diff --git a/Semester 2/Programming 2/Project/Part 2/CD.class b/Semester 2/Programming 2/Project/Part 4 Complete/CD.class
similarity index 91%
rename from Semester 2/Programming 2/Project/Part 2/CD.class
rename to Semester 2/Programming 2/Project/Part 4 Complete/CD.class
index 0f23deb..6cce770 100644
Binary files a/Semester 2/Programming 2/Project/Part 2/CD.class and b/Semester 2/Programming 2/Project/Part 4 Complete/CD.class differ
diff --git a/Semester 2/Programming 2/Project/Part 2/CD.ctxt b/Semester 2/Programming 2/Project/Part 4 Complete/CD.ctxt
similarity index 87%
rename from Semester 2/Programming 2/Project/Part 2/CD.ctxt
rename to Semester 2/Programming 2/Project/Part 4 Complete/CD.ctxt
index 7e09051..6880fc2 100644
--- a/Semester 2/Programming 2/Project/Part 2/CD.ctxt	
+++ b/Semester 2/Programming 2/Project/Part 4 Complete/CD.ctxt	
@@ -19,5 +19,5 @@ comment5.target=void\ printDetails()
 comment5.text=\n\ Print\ to\ terminal,\ relevant\ details\ of\ current\ object.\n
 comment6.params=detailScanner
 comment6.target=void\ readItemData(java.util.Scanner)
-comment6.text=\n\ Passed\ a\ scanner,\ set\ the\ relevant\ details\ to\ their\ corresponding\ field\ variables.\n
+comment6.text=\n\ Populate\ the\ fields\ with\ details\ from\ the\ scanner\n\ Takes\ Parameters\n\ \ Scanner\ @detailScanner\n
 numComments=7
diff --git a/Semester 2/Programming 2/Project/Part 2/CD.java b/Semester 2/Programming 2/Project/Part 4 Complete/CD.java
similarity index 91%
rename from Semester 2/Programming 2/Project/Part 2/CD.java
rename to Semester 2/Programming 2/Project/Part 4 Complete/CD.java
index c06b2e8..afa33d4 100644
--- a/Semester 2/Programming 2/Project/Part 2/CD.java	
+++ b/Semester 2/Programming 2/Project/Part 4 Complete/CD.java	
@@ -3,7 +3,7 @@
  * Subclass of AudioVisual, to create objects of a CD.
  * 
  * @George Wilkinson
- * @1.0
+ * @1.2
  */
 
 import java.util.Scanner;
@@ -60,8 +60,10 @@ public class CD extends AudioVisual
         super.printDetails();
     }
     
-    /*
-     * Passed a scanner, set the relevant details to their corresponding field variables.
+    /**
+     * Populate the fields with details from the scanner
+     * Takes Parameters
+     *  Scanner @detailScanner
      */
     public void readItemData( Scanner detailScanner ){
         if ( detailScanner != null ) {
diff --git a/Semester 2/Programming 2/Project/Part 2/DVD.class b/Semester 2/Programming 2/Project/Part 4 Complete/DVD.class
similarity index 94%
rename from Semester 2/Programming 2/Project/Part 2/DVD.class
rename to Semester 2/Programming 2/Project/Part 4 Complete/DVD.class
index b14f577..aedc607 100644
Binary files a/Semester 2/Programming 2/Project/Part 2/DVD.class and b/Semester 2/Programming 2/Project/Part 4 Complete/DVD.class differ
diff --git a/Semester 2/Programming 2/Project/Part 2/DVD.ctxt b/Semester 2/Programming 2/Project/Part 4 Complete/DVD.ctxt
similarity index 84%
rename from Semester 2/Programming 2/Project/Part 2/DVD.ctxt
rename to Semester 2/Programming 2/Project/Part 4 Complete/DVD.ctxt
index 09b5965..90f5db1 100644
--- a/Semester 2/Programming 2/Project/Part 2/DVD.ctxt	
+++ b/Semester 2/Programming 2/Project/Part 4 Complete/DVD.ctxt	
@@ -13,5 +13,5 @@ comment3.target=void\ printDetails()
 comment3.text=\n\ Print\ relevant\ details\ of\ the\ current\ object.\n
 comment4.params=detailScanner
 comment4.target=void\ readItemData(java.util.Scanner)
-comment4.text=\n\ Passed\ a\ scanner\ object,\ give\ the\ relevant\ variable\ a\ value.\n
+comment4.text=\n\ Populate\ the\ fields\ with\ details\ from\ the\ scanner\n\ Takes\ Parameters\n\ \ Scanner\ @detailScanner\n
 numComments=5
diff --git a/Semester 2/Programming 2/Project/Part 2/DVD.java b/Semester 2/Programming 2/Project/Part 4 Complete/DVD.java
similarity index 89%
rename from Semester 2/Programming 2/Project/Part 2/DVD.java
rename to Semester 2/Programming 2/Project/Part 4 Complete/DVD.java
index 597c108..6926f82 100644
--- a/Semester 2/Programming 2/Project/Part 2/DVD.java	
+++ b/Semester 2/Programming 2/Project/Part 4 Complete/DVD.java	
@@ -3,7 +3,7 @@
  * Subclass of AudioVisual to create objects of DVD items.
  * 
  * @George Wilkinson
- * @1.0
+ * @1.2
  */
 
 import java.util.Scanner;
@@ -42,8 +42,10 @@ public class DVD extends AudioVisual
         super.printDetails();
     }
     
-    /*
-     * Passed a scanner object, give the relevant variable a value.
+    /**
+     * Populate the fields with details from the scanner
+     * Takes Parameters
+     *  Scanner @detailScanner
      */
     public void readItemData( Scanner detailScanner ){
         if ( detailScanner != null ) {
diff --git a/Semester 2/Programming 2/Project/Part 2/DateUtil.class b/Semester 2/Programming 2/Project/Part 4 Complete/DateUtil.class
similarity index 100%
rename from Semester 2/Programming 2/Project/Part 2/DateUtil.class
rename to Semester 2/Programming 2/Project/Part 4 Complete/DateUtil.class
diff --git a/Semester 2/Programming 2/Project/Part 2/DateUtil.ctxt b/Semester 2/Programming 2/Project/Part 4 Complete/DateUtil.ctxt
similarity index 100%
rename from Semester 2/Programming 2/Project/Part 2/DateUtil.ctxt
rename to Semester 2/Programming 2/Project/Part 4 Complete/DateUtil.ctxt
diff --git a/Semester 2/Programming 2/Project/Part 2/DateUtil.java b/Semester 2/Programming 2/Project/Part 4 Complete/DateUtil.java
similarity index 100%
rename from Semester 2/Programming 2/Project/Part 2/DateUtil.java
rename to Semester 2/Programming 2/Project/Part 4 Complete/DateUtil.java
diff --git a/Semester 2/Programming 2/Project/Part 2/Diary$1.class b/Semester 2/Programming 2/Project/Part 4 Complete/Diary$1.class
similarity index 100%
rename from Semester 2/Programming 2/Project/Part 2/Diary$1.class
rename to Semester 2/Programming 2/Project/Part 4 Complete/Diary$1.class
diff --git a/Semester 2/Programming 2/Project/Part 2/Diary$DayInDiary$Entry.class b/Semester 2/Programming 2/Project/Part 4 Complete/Diary$DayInDiary$Entry.class
similarity index 100%
rename from Semester 2/Programming 2/Project/Part 2/Diary$DayInDiary$Entry.class
rename to Semester 2/Programming 2/Project/Part 4 Complete/Diary$DayInDiary$Entry.class
diff --git a/Semester 2/Programming 2/Project/Part 2/Diary$DayInDiary.class b/Semester 2/Programming 2/Project/Part 4 Complete/Diary$DayInDiary.class
similarity index 100%
rename from Semester 2/Programming 2/Project/Part 2/Diary$DayInDiary.class
rename to Semester 2/Programming 2/Project/Part 4 Complete/Diary$DayInDiary.class
diff --git a/Semester 2/Programming 2/Project/Part 2/Diary.class b/Semester 2/Programming 2/Project/Part 4 Complete/Diary.class
similarity index 100%
rename from Semester 2/Programming 2/Project/Part 2/Diary.class
rename to Semester 2/Programming 2/Project/Part 4 Complete/Diary.class
diff --git a/Semester 2/Programming 2/Project/Part 2/Diary.ctxt b/Semester 2/Programming 2/Project/Part 4 Complete/Diary.ctxt
similarity index 100%
rename from Semester 2/Programming 2/Project/Part 2/Diary.ctxt
rename to Semester 2/Programming 2/Project/Part 4 Complete/Diary.ctxt
diff --git a/Semester 2/Programming 2/Project/Part 2/Diary.java b/Semester 2/Programming 2/Project/Part 4 Complete/Diary.java
similarity index 100%
rename from Semester 2/Programming 2/Project/Part 2/Diary.java
rename to Semester 2/Programming 2/Project/Part 4 Complete/Diary.java
diff --git a/Semester 2/Programming 2/Project/Part 4 Complete/Library.class b/Semester 2/Programming 2/Project/Part 4 Complete/Library.class
new file mode 100644
index 0000000..9518bd7
Binary files /dev/null and b/Semester 2/Programming 2/Project/Part 4 Complete/Library.class differ
diff --git a/Semester 2/Programming 2/Project/Part 4 Complete/Library.ctxt b/Semester 2/Programming 2/Project/Part 4 Complete/Library.ctxt
new file mode 100644
index 0000000..954b63e
--- /dev/null
+++ b/Semester 2/Programming 2/Project/Part 4 Complete/Library.ctxt	
@@ -0,0 +1,65 @@
+#BlueJ class context
+comment0.params=
+comment0.target=Library()
+comment0.text=\n\ Constructor\ for\ objects\ of\ class\ Library\n
+comment1.params=
+comment1.target=java.util.ArrayList\ getUserIDs()
+comment1.text=\n\ Return\ the\ keys\ of\ @customerMap\ as\ a\ list.\n
+comment10.params=
+comment10.target=java.lang.String\ generateReservationNo()
+comment10.text=\n\ Generate\ a\ sequential\ reservation\ number\ padded\ with\ 0s\ to\ a\ length\ of\ 6.\n\ \n\ Since\ we\ are\ not\ storing\ in\ a\ file\ at\ this\ point,\ we\ obtain\ the\ size\ of\ the\ Map,\ and\ add\ 1\ to\ determine\ the\ current\ number.\n\ This\ is\ due\ to\ the\ event\ of\ program\ restart,\ if\ a\ field\ variable\ is\ used,\ the\ first\ reservation\ generated\ will\ be\ of\ ID\ "000001"\n\ no\ matter\ what.\ This\ causes\ an\ issue\ if\ a\ file\ is\ read\ to\ load\ the\ reservations\ into\ the\ Library,\ since\ IDs\ will\ conflict\ and\ \n\ the\ value\ will\ be\ overwritten,\ causing\ data\ integrity\ loss.\n\ Unlike\ @generateUserID,\ this\ has\ a\ maximum\ value\ hardcoded\ to\ the\ spec.\ \n\ This\ likely\ will\ not\ be\ an\ issue\ since\ we\ can\ still\ have\ 1,000,000\ reservations.\n\ \n\ Returns\n\ \ String\ @candidateNo\ -\ a\ proposed\ lowest\ number\ that\ is\ checked\ and\ interated\ if\ conflicting.\n
+comment11.params=prefix\ length
+comment11.target=java.lang.String\ generateUserID(java.lang.String,\ int)
+comment11.text=\n\ Generate\ a\ unique\ user\ identifier\ to\ apply\ to\ users\ when\ the\ UUID\ is\ unknown.\n\ This\ generates\ a\ number\ of\ @length\ length\ using\ the\ Random\ class,\ and\ prefixes\ @prefix.\n\ \n\ Takes\ Parameters\n\ \ String\ @prefix\ -\ arbitrary\ alphanumeric\ prefix\n\ \ String\ @length\ -\ length\ of\ numeric\ ID\n\ Returns\n\ \ String\ @uuid\ -\ a\ unique\ string\ starting\ with\ @prefix,\ and\ concat.\ with\ a\ random\ number\n\ \n\ Example\:\ length\ \=\ 6,\ expected\ result\ should\ be\ under\ 999,999\ and\ above\ 99,999.\n\ If\ we\ just\ use\ 10^(length),\ this\ would\ generate\ any\ number\ under\ 1,000,000.\n\ This\ is\ an\ issue\ since\ any\ integers\ below\ 100,000\ can\ be\ used,\ which\ would\ be\ incorrect.\n\ By\ using\ the\ offset\ of\ a\ factor\ of\ 10\ below\ the\ desired\ length\ we\ can\ generate\ between\ 0\ and\ 899,999.\n\ After\ this,\ we\ can\ add\ 100,000\ back\ to\ the\ number\ to\ ensure\ a\ baseline\ length\ is\ maintained.\n\ \n\ Note\:\ I\ am\ aware\ that\ this\ is\ overengineered,\ and\ that\ several\ random\ integers\ of\ amount\ @length\ could\ be\ used,\ \n\ but\ this\ is\ considerably\ more\ efficient\ since\ there\ is\ no\ iteration\ involved\ in\ the\ creation\ of\ the\ ID.\ O(1)\n
+comment12.params=
+comment12.target=void\ printLibraryReservations()
+comment12.text=\n\ Prints\ to\ the\ terminal,\ in\ a\ human-readable\ format,\ all\ LibraryReservation(s)\n\ \n\ Contains\ a\ marker\ at\ the\ start\ and\ end\ to\ visualise\ in\ terminal\ output.\n
+comment13.params=
+comment13.target=void\ printAll()
+comment13.text=\n\ Prints\ to\ the\ terminal,\ in\ a\ human-readable\ format,\ all\:\n\ \ LibraryItem(s)\n\ \ LibraryUser(s)\n\ \ LibraryReservation(s)\n\ \n\ Contains\ a\ marker\ at\ the\ start\ and\ end\ of\ each\ type\ to\ visualise\ in\ terminal\ output.\n\ For\ printing\ the\ LibraryReservation(s),\ the\ corresponding\ method\ is\ called\ to\ reduce\n\ code\ duplication.\n
+comment14.params=start\ end
+comment14.target=void\ printDiaryEntries(java.lang.String,\ java.lang.String)
+comment14.text=\n\ Print,\ to\ the\ terminal\ all\ reservation\ entries\ in\ the\ diary.\n\ Takes\ Parameters\n\ \ String\ @start\n\ \ String\ @end\n\ \n\ This\ converts\ both\ string\ inputs\ to\ Date\ formats,\ and\ calls\ the\ printEntries\n\ method\ in\ the\ diary\ class.\n
+comment15.params=
+comment15.target=void\ writeLibraryReservationData()
+comment15.text=\n\ Write\ all\ current\ library\ reservations\ to\ a\ file\ specified\ by\ the\ user.\n\ For\ each\ user,\ this\ passes\ a\ printWriter\ object\ to\ the\ writeData\ method\ of\ LibraryReservation.\n
+comment16.params=
+comment16.target=void\ writeUserData()
+comment16.text=\n\ A\ method\ to\ output\ all\ user\ data\ to\ a\ file\ using\ a\ fileDialog\ to\ specify\ file\ location.\n\ For\ each\ user,\ this\ passes\ a\ printWriter\ object\ to\ the\ writeData\ method\ of\ LibraryUser.\n
+comment17.params=
+comment17.target=void\ readLibraryReservationData()
+comment17.text=\n\ Read\ Library\ Reservation\ Data\ from\ a\ file\ specified\ by\ the\ user.\n\ This\ passes\ a\ scanner\ to\ the\ readData\ method\ in\ LibraryReservation\ for\ each\n\ line\ of\ the\ file.\n
+comment18.params=
+comment18.target=void\ readData()
+comment18.text=\n\ A\ method\ to\ read\ all\ data\ from\ files\ using\ a\ fileDialog\ to\ specify\ file\ location.\n\ This\ will\ create\ the\ corresponding\ objects\ depending\ on\ flags\ contained\ in\ the\ file\n\ and\ populate\ it's\ fields.\n\ \n\ Default\ flag\ value\:\ "book",\ to\ support\ legacy\ files.\ This\ will\ not\ interfere\ with\ \n\ files\ of\ different\ flag\ orders.\n
+comment19.params=userID\ itemCode\ startDate\ noOfDays
+comment19.target=boolean\ makeLibraryReservation(java.lang.String,\ java.lang.String,\ java.lang.String,\ int)
+comment19.text=\n\ Create\ a\ reservation\ to\ allow\ a\ user\ to\ reserve\ an\ item\ from\ the\ library.\ Ensures\ a\ reservation\ is\ not\ already\n\ in\ place\ for\ a\ conflicting\ itemCode.\n\ Takes\ parameters\n\ \ String\ @userID\ \n\ \ String\ @itemCode\n\ \ String\ @startDate\n\ \ int\ @noOfDays\n\ \ \n\ Returns\n\ \ boolean\n
+comment2.params=
+comment2.target=java.util.ArrayList\ getItemCodes()
+comment2.text=\n\ Return\ the\ keys\ of\ @itemsMap\ as\ a\ list.\n
+comment20.params=reservationNo
+comment20.target=void\ deleteLibraryReservation(java.lang.String)
+comment20.text=\n\ Allows\ the\ deletion\ of\ a\ library\ reservation.\ \n\ \n\ Takes\ Parameter\n\ \ String\ @reservationNo\n\ \ \n\ Removes\ the\ corresponding\ value\ from\ the\ hashMap\ and\ diary.\n
+comment3.params=
+comment3.target=java.util.ArrayList\ getReservationNos()
+comment3.text=\n\ Return\ the\ keys\ of\ @libraryReservationMap\ as\ a\ list.\n
+comment4.params=
+comment4.target=java.util.ArrayList\ getUsers()
+comment4.text=\n\ Return\ the\ values\ of\ @customerMap\ as\ a\ list.\n
+comment5.params=
+comment5.target=java.util.ArrayList\ getItems()
+comment5.text=\n\ Return\ the\ values\ of\ @itemsMap\ as\ a\ list.\n
+comment6.params=
+comment6.target=java.util.ArrayList\ getLibraryReservations()
+comment6.text=\n\ Return\ the\ values\ of\ @libraryReservationMap\ as\ a\ list.\n
+comment7.params=item
+comment7.target=void\ storeItem(LibraryItem)
+comment7.text=\n\ Inserts\ object\ value\ item\ alongside\ key\ of\ @itemCode\ into\ @itemsMap.\n
+comment8.params=user
+comment8.target=void\ storeUser(LibraryUser)
+comment8.text=\n\ Inserts\ object\ value\ user\ alongside\ key\ of\ @userID\ into\ @customerMap.\n\ If\ the\ userID\ is\ set\ to\ unknown,\ it\ will\ call\ @generateUserID.\n
+comment9.params=reservation
+comment9.target=void\ storeLibraryReservation(LibraryReservation)
+comment9.text=\n\ Inserts\ object\ value\ reservation\ alongside\ key\ of\ @reservationNo\ into\ @libraryReservationMap.\n
+numComments=21
diff --git a/Semester 2/Programming 2/Project/Part 2/Library.java b/Semester 2/Programming 2/Project/Part 4 Complete/Library.java
similarity index 71%
rename from Semester 2/Programming 2/Project/Part 2/Library.java
rename to Semester 2/Programming 2/Project/Part 4 Complete/Library.java
index dcd81ad..5ec66d6 100644
--- a/Semester 2/Programming 2/Project/Part 2/Library.java	
+++ b/Semester 2/Programming 2/Project/Part 4 Complete/Library.java	
@@ -1,17 +1,17 @@
 // Import all required libraries. Not using .* as it is not good practice due to potential conflicts.
-import java.util.List;
-import java.util.ArrayList;
-import java.util.HashSet;
 import java.util.Scanner;
 import java.util.Random;
 import java.util.Map;
 import java.util.HashMap;
 import java.util.Date;
+import java.util.NoSuchElementException;
 import java.io.File;
 import java.io.IOException;
 import java.awt.FileDialog;
 import java.awt.Frame;
 import java.io.PrintWriter;
+import java.util.List;
+import java.util.ArrayList;
 
 /**
  * Class to create objects of a Library, which can hold and report on assets held within
@@ -51,6 +51,63 @@ public class Library
         diary = new Diary();
     }
     
+    /**
+     * Accessor Start
+     * 
+     * Possible scope creep, but thought it would be useful or even required for top marks to have accessors here.
+     */
+    
+    /**
+     * Return the keys of @customerMap as a list.
+     */
+    public ArrayList getUserIDs()
+    {
+        return new ArrayList<String>( customerMap.keySet() );
+    }
+    
+    /**
+     * Return the keys of @itemsMap as a list.
+     */
+    public ArrayList getItemCodes()
+    {
+        return new ArrayList<String>( itemsMap.keySet() );
+    }
+    
+    /**
+     * Return the keys of @libraryReservationMap as a list.
+     */
+    public ArrayList getReservationNos()
+    {
+        return new ArrayList<String>( libraryReservationMap.keySet() );
+    }
+    
+    /**
+     * Return the values of @customerMap as a list.
+     */
+    public ArrayList getUsers()
+    {
+        return new ArrayList<LibraryUser>( customerMap.values() );
+    }
+    
+    /**
+     * Return the values of @itemsMap as a list.
+     */
+    public ArrayList getItems()
+    {
+        return new ArrayList<LibraryItem>( itemsMap.values() );
+    }
+    
+    /**
+     * Return the values of @libraryReservationMap as a list.
+     */
+    public ArrayList getLibraryReservations()
+    {
+        return new ArrayList<LibraryReservation>( libraryReservationMap.values() );
+    }
+    
+    /**
+     * Accessor End
+     */
     
     /**
      * Storing Objects Start
@@ -79,9 +136,9 @@ public class Library
         customerMap.put( user.getUserID(), user ); // Store the user along with the userID.
     }
     
-    /*
+    /**
      * Inserts object value reservation alongside key of @reservationNo into @libraryReservationMap.
-     */
+     **/
     private void storeLibraryReservation( LibraryReservation reservation )
     {
         libraryReservationMap.put( reservation.getReservationNo(), reservation );
@@ -97,13 +154,20 @@ public class Library
      * Generate IDs Start
      */
     
-    /*
-     * Generate a sequential reservation number. Since Maps do not have an index, we cannot simply get the last value, 
-     * and recursion would be too intensive for this application. As a placeholder for the file output, a field variable
-     * is used to hold the last highest value for the reservation number. Unlike @generateUserID, this has a maximum value
-     * hardcoded to the spec. This likely will not be an issue since we can still have 1,000,000 reservations.
-     */
-    public String generateReservationNo()
+    /**
+     * Generate a sequential reservation number padded with 0s to a length of 6.
+     * 
+     * Since we are not storing in a file at this point, we obtain the size of the Map, and add 1 to determine the current number.
+     * This is due to the event of program restart, if a field variable is used, the first reservation generated will be of ID "000001"
+     * no matter what. This causes an issue if a file is read to load the reservations into the Library, since IDs will conflict and 
+     * the value will be overwritten, causing data integrity loss.
+     * Unlike @generateUserID, this has a maximum value hardcoded to the spec. 
+     * This likely will not be an issue since we can still have 1,000,000 reservations.
+     * 
+     * Returns
+     *  String @candidateNo - a proposed lowest number that is checked and interated if conflicting.
+     **/
+    private String generateReservationNo()
     {
         /*
          * Originally, I did not check if the number was already taken, however the last part of step 4 introduced deletion.
@@ -118,12 +182,15 @@ public class Library
         return candidateNo;
     }
     
-    /*
-     * Returns a random unique user ID by specifying 
-     * @prefix - arbitrary alphanumeric prefix
-     * @length - length of numeric ID
-     * and returning a unique user id
-     * @uuid - a unique string starting with @prefix, and concat. with a random number
+    /**
+     * Generate a unique user identifier to apply to users when the UUID is unknown.
+     * This generates a number of @length length using the Random class, and prefixes @prefix.
+     * 
+     * Takes Parameters
+     *  String @prefix - arbitrary alphanumeric prefix
+     *  String @length - length of numeric ID
+     * Returns
+     *  String @uuid - a unique string starting with @prefix, and concat. with a random number
      * 
      * Example: length = 6, expected result should be under 999,999 and above 99,999.
      * If we just use 10^(length), this would generate any number under 1,000,000.
@@ -133,7 +200,7 @@ public class Library
      * 
      * Note: I am aware that this is overengineered, and that several random integers of amount @length could be used, 
      * but this is considerably more efficient since there is no iteration involved in the creation of the ID. O(1)
-     */
+     **/
     private String generateUserID( String prefix, int length )
     {
         Random random = new Random();
@@ -174,11 +241,11 @@ public class Library
      * Print Object Details Start
      */
     
-    /*
-     * Prints to the terminal, in a human-readable format, library reservation in the itemList
+    /**
+     * Prints to the terminal, in a human-readable format, all LibraryReservation(s)
      * 
      * Contains a marker at the start and end to visualise in terminal output.
-     */
+     **/
     public void printLibraryReservations() {
         System.out.println( "Reservation Details Start" );
         for ( LibraryReservation reservation : libraryReservationMap.values() ){
@@ -188,11 +255,16 @@ public class Library
         System.out.println( "---------------\nReservation Details End\n" );
     }
     
-    /*
-     * Prints to the terminal, in a human-readable format, all items in the itemList
+    /**
+     * Prints to the terminal, in a human-readable format, all:
+     *  LibraryItem(s)
+     *  LibraryUser(s)
+     *  LibraryReservation(s)
      * 
-     * Contains a marker at the start and end to visualise in terminal output.
-     */
+     * Contains a marker at the start and end of each type to visualise in terminal output.
+     * For printing the LibraryReservation(s), the corresponding method is called to reduce
+     * code duplication.
+     **/
     public void printAll()
     {
         System.out.println("\n\nItem Details Start");
@@ -212,6 +284,15 @@ public class Library
         printLibraryReservations();
     }
     
+    /**
+     * Print, to the terminal all reservation entries in the diary.
+     * Takes Parameters
+     *  String @start
+     *  String @end
+     * 
+     * This converts both string inputs to Date formats, and calls the printEntries
+     * method in the diary class.
+     */
     public void printDiaryEntries( String start, String end ) 
     {
         diary.printEntries( DateUtil.convertStringToDate( start ), DateUtil.convertStringToDate( end ) );
@@ -225,9 +306,10 @@ public class Library
      * Write Files Start
      */
     
-    /*
+    /**
      * Write all current library reservations to a file specified by the user.
-     */
+     * For each user, this passes a printWriter object to the writeData method of LibraryReservation.
+     **/
     public void writeLibraryReservationData()
     {
         try {
@@ -246,19 +328,19 @@ public class Library
         }
     }
 
-    /*
+    /**
      * A method to output all user data to a file using a fileDialog to specify file location.
-     * 
-     */
+     * For each user, this passes a printWriter object to the writeData method of LibraryUser.
+     **/
     public void writeUserData()
     {
         try {
             Frame frame = null; // Initialise null frame
             FileDialog fileBox = new FileDialog( frame, "Save", FileDialog.SAVE ); // Initialise file dialog box to save written data.
             fileBox.setVisible( true );
-            PrintWriter writer = new PrintWriter( new File( fileBox.getDirectory() + fileBox.getFile() ) );
+            PrintWriter writer = new PrintWriter( new File( fileBox.getDirectory() + fileBox.getFile() ) ); // Create PrintWriter to write user data to.
             // for ( LibraryUser user : userList ){
-            writer.println("[Library User data]");
+            writer.println("[Library User data]"); // Write the type header into the file.
             for ( LibraryUser user : customerMap.values() ) {
                 user.writeData( writer );
             }
@@ -277,9 +359,11 @@ public class Library
      * Read Files Start
      */
     
-    /*
+    /**
      * Read Library Reservation Data from a file specified by the user.
-     */
+     * This passes a scanner to the readData method in LibraryReservation for each
+     * line of the file.
+     **/
     public void readLibraryReservationData()
     {
         try {
@@ -300,16 +384,19 @@ public class Library
         catch( IOException e ) { // Catch any IO Exceptions that may occur from improper file selection.
             System.err.println( "Caught IOException: " + e.getMessage() + "\nAn I/O Exception has occurred, please check file is readable and correct format." );
         }
+        catch ( NoSuchElementException e ) { // In the event of incorrect formats from a readable file, this prevents a program crash.
+            System.err.println( "Caught Exception: " + e.getMessage() + "\nEnsure File contains the correct information." );
+        }
     }
     
-    /*
+    /**
      * A method to read all data from files using a fileDialog to specify file location.
      * This will create the corresponding objects depending on flags contained in the file
      * and populate it's fields.
      * 
      * Default flag value: "book", to support legacy files. This will not interfere with 
      * files of different flag orders.
-     */
+     **/
     public void readData()
     {
         Frame frame = null; // Initialise a null frame
@@ -318,7 +405,7 @@ public class Library
         
         try {
             Scanner fileScanner = new Scanner( new File( fileBox.getDirectory() + fileBox.getFile() ) );
-            String typeFlag = "book"; // Set a default flag to support legacy files.
+            String itemType = "book"; // Set a default flag to support legacy files.
             
             while( fileScanner.hasNextLine() ) {
                 
@@ -331,18 +418,18 @@ public class Library
                 else if ( lineItem.startsWith("[" ) ) {
                     
                     if ( lineItem.toLowerCase().contains("book") )
-                        typeFlag = "book";
+                        itemType = "book";
                     else if ( lineItem.toLowerCase().contains("periodical") )
-                        typeFlag = "periodical";
+                        itemType = "periodical";
                     else if ( lineItem.toLowerCase().contains("cd") )
-                        typeFlag = "cd";
+                        itemType = "cd";
                     else if ( lineItem.toLowerCase().contains("dvd") )
-                        typeFlag = "dvd";
+                        itemType = "dvd";
                     else if ( lineItem.toLowerCase().contains("user") )
-                        typeFlag = "user";
+                        itemType = "user";
                     else {
                         System.out.println( "Flag detected, but no accepted format...\n Cannot store item in Library. Changing Flag to generic and skipping the following: ");
-                        typeFlag = "generic";
+                        itemType = "generic";
                     }
                     
                 }
@@ -352,36 +439,36 @@ public class Library
                 else {
                     Scanner detailScanner = new Scanner ( lineItem ).useDelimiter(","); // Create a new scanner to grab the values in a comma separated list
                     LibraryItem item = null; // Initialise LibraryItem object. Java compiler was being cautious here, so I have to assign the value null.
-                    if ( typeFlag.equals( "book" ) ) {
+                    if ( itemType.equals( "book" ) ) {
                         // Process Book Data
                         item = new Book();
                     }
-                    else if ( typeFlag.equals( "periodical" ) ) {
+                    else if ( itemType.equals( "periodical" ) ) {
                         // Process Periodic Data
                         item = new Periodical();
                     }
-                    else if ( typeFlag.equals( "cd" ) ) {
+                    else if ( itemType.equals( "cd" ) ) {
                         //Process CD Data
                         item = new CD();
                     }
-                    else if ( typeFlag.equals( "dvd" ) ) {
+                    else if ( itemType.equals( "dvd" ) ) {
                         //Process DVD Data
                         item = new DVD();
                     }
-                    else if ( typeFlag.equals( "user" ) ) {
+                    else if ( itemType.equals( "user" ) ) {
                         //Process User Data
                         LibraryUser user = new LibraryUser();
                         user.readData( detailScanner );
                         storeUser( user );
                         continue;
                     }
-                    else if ( typeFlag.equals( "generic" ) ) {
+                    else if ( itemType.equals( "generic" ) ) {
                         // Output unaccepted lines to terminal
                         System.out.println( lineItem );
                         continue;
                     }
                     
-                    item.readItemData( detailScanner ); 
+                    item.readItemData( detailScanner ); // Deduped from if statements
                     storeItem( item );
                     detailScanner.close();
                 }
@@ -391,6 +478,9 @@ public class Library
         catch( IOException e ) { // Catch any IO Exceptions that may occur from improper file selection.
             System.err.println( "Caught IOException: " + e.getMessage() + "\nAn I/O Exception has occurred, please check file is readable and correct format." );
         }
+        catch ( NoSuchElementException e ) { // In the event of incorrect formats from a readable file, this prevents a program crash.
+            System.err.println( "Caught Exception: " + e.getMessage() + "\nEnsure File contains the correct information." );
+        }
     }
     
     /**
@@ -401,9 +491,18 @@ public class Library
      * Other Methods
      */
     
-    /*
-     * Create a reservation to allow a user to reserve an item from the library.
-     */
+    /**
+     * Create a reservation to allow a user to reserve an item from the library. Ensures a reservation is not already
+     * in place for a conflicting itemCode.
+     * Takes parameters
+     *  String @userID 
+     *  String @itemCode
+     *  String @startDate
+     *  int @noOfDays
+     *  
+     * Returns
+     *  boolean
+     **/
     public boolean makeLibraryReservation( String userID, String itemCode, String startDate, int noOfDays ) 
     {
         if ( !customerMap.containsKey( userID ) )
@@ -433,8 +532,8 @@ public class Library
          * Unneeded, since addReservations returns any item currently on loan. Dates do not need to be checked for every day in loan.
          * Date end = DateUtil.incrementDate( start, noOfDays-1 );
          */
-        String rID = generateReservationNo();
-        LibraryReservation reservation = new LibraryReservation( rID, itemCode, userID, startDate, noOfDays );
+        String rID = generateReservationNo(); // Generate a sequential ID for the reservation.
+        LibraryReservation reservation = new LibraryReservation( rID, itemCode, userID, startDate, noOfDays ); // Create new reservation, passing parameters to the constructor.
         /** Instead of the following For loop, I could've implemented 
          *  Arrays.asList( diary.getReservation( start, end ).contains( reservation )
          *  Although this would've been easier, this implementation is more in the scope of what we have learned.
@@ -443,20 +542,32 @@ public class Library
         {
             if ( diaryReservation.toString().equals( reservation.toString() ) )
             {
-                return false;
+                System.err.println( "This item is already reserved" );
+                return false; // Reservation unsuccessful
             }
         }
         
         storeLibraryReservation( reservation );
-        return true;
+        itemsMap.get( itemCode ).setOnLoan( true ); // Set the loan status for the item when the reservation is made
+        return true; // Reservation successful
     }
     
+    /**
+     * Allows the deletion of a library reservation. 
+     * 
+     * Takes Parameter
+     *  String @reservationNo
+     *  
+     * Removes the corresponding value from the hashMap and diary.
+     */
     public void deleteLibraryReservation( String reservationNo )
     {
         if ( libraryReservationMap.containsKey( reservationNo ) )
         {
-            diary.deleteReservation( libraryReservationMap.get( reservationNo ) );
-            libraryReservationMap.remove( reservationNo );
+            // Since the application does not know the time, or use timers, this is the best I can do to remove the loan status.
+            itemsMap.get ( libraryReservationMap.get( reservationNo ).getItemCode() ).setOnLoan( false ); 
+            diary.deleteReservation( libraryReservationMap.get( reservationNo ) ); // Remove the reservation from the diary
+            libraryReservationMap.remove( reservationNo ); // Remove the reservation from the Map.
         }
     }
 }
diff --git a/Semester 2/Programming 2/Project/Part 2/LibraryItem.class b/Semester 2/Programming 2/Project/Part 4 Complete/LibraryItem.class
similarity index 65%
rename from Semester 2/Programming 2/Project/Part 2/LibraryItem.class
rename to Semester 2/Programming 2/Project/Part 4 Complete/LibraryItem.class
index 3755f8a..ed54111 100644
Binary files a/Semester 2/Programming 2/Project/Part 2/LibraryItem.class and b/Semester 2/Programming 2/Project/Part 4 Complete/LibraryItem.class differ
diff --git a/Semester 2/Programming 2/Project/Part 2/LibraryItem.ctxt b/Semester 2/Programming 2/Project/Part 4 Complete/LibraryItem.ctxt
similarity index 75%
rename from Semester 2/Programming 2/Project/Part 2/LibraryItem.ctxt
rename to Semester 2/Programming 2/Project/Part 4 Complete/LibraryItem.ctxt
index 9d064c0..dc2f6f9 100644
--- a/Semester 2/Programming 2/Project/Part 2/LibraryItem.ctxt	
+++ b/Semester 2/Programming 2/Project/Part 4 Complete/LibraryItem.ctxt	
@@ -6,10 +6,10 @@ comment1.params=
 comment1.target=java.lang.String\ getItemCode()
 comment10.params=
 comment10.target=void\ printDetails()
-comment10.text=\n\ Print\ to\ terminal,\ relevant\ field\ variables\n
+comment10.text=\n\ Forms\ field\ variables\ in\ a\ desired\ format,\ prints\n\ to\ the\ PrintWriter,\ and\ flush\ to\ the\ file.\n\ Takes\ Parameter\n\ \ PrintWriter\ @writer\n
 comment11.params=detailScanner
 comment11.target=void\ readItemData(java.util.Scanner)
-comment11.text=\n\ Passed\ a\ scanner\ object,\ assign\ values\ to\ relevant\ field\ variables\n
+comment11.text=\n\ Populate\ the\ fields\ with\ details\ from\ the\ scanner\n\ Takes\ Parameters\n\ \ Scanner\ @detailScanner\n
 comment2.params=
 comment2.target=int\ getCost()
 comment3.params=
diff --git a/Semester 2/Programming 2/Project/Part 2/LibraryItem.java b/Semester 2/Programming 2/Project/Part 4 Complete/LibraryItem.java
similarity index 87%
rename from Semester 2/Programming 2/Project/Part 2/LibraryItem.java
rename to Semester 2/Programming 2/Project/Part 4 Complete/LibraryItem.java
index dbc3000..599c202 100644
--- a/Semester 2/Programming 2/Project/Part 2/LibraryItem.java	
+++ b/Semester 2/Programming 2/Project/Part 4 Complete/LibraryItem.java	
@@ -1,12 +1,11 @@
 import java.util.Scanner;
-import java.util.ArrayList;
 import java.util.NoSuchElementException;
 
 /**
  * Superclass of items / assets stored in a Library.
  * 
  * @author George Wilkinson
- * @version 3.1
+ * @version 4.1
  */
 public abstract class LibraryItem
 {
@@ -80,9 +79,12 @@ public abstract class LibraryItem
      * Field Mutator End
      */
    
-   /*
-    * Print to terminal, relevant field variables
-    */
+    /**
+     * Forms field variables in a desired format, prints
+     * to the PrintWriter, and flush to the file.
+     * Takes Parameter
+     *  PrintWriter @writer
+     */
    public void printDetails()
    {
         System.out.println("Item Code: " + itemCode +
@@ -95,9 +97,11 @@ public abstract class LibraryItem
             System.out.println( "Available to Loan");
    }
    
-   /*
-    * Passed a scanner object, assign values to relevant field variables
-    */
+    /**
+     * Populate the fields with details from the scanner
+     * Takes Parameters
+     *  Scanner @detailScanner
+     */
    public void readItemData( Scanner detailScanner ) {
         
         if ( detailScanner != null ) {
diff --git a/Semester 2/Programming 2/Project/Part 4 Complete/LibraryReservation.class b/Semester 2/Programming 2/Project/Part 4 Complete/LibraryReservation.class
new file mode 100644
index 0000000..623b679
Binary files /dev/null and b/Semester 2/Programming 2/Project/Part 4 Complete/LibraryReservation.class differ
diff --git a/Semester 2/Programming 2/Project/Part 4 Complete/LibraryReservation.ctxt b/Semester 2/Programming 2/Project/Part 4 Complete/LibraryReservation.ctxt
new file mode 100644
index 0000000..cbabb7c
--- /dev/null
+++ b/Semester 2/Programming 2/Project/Part 4 Complete/LibraryReservation.ctxt	
@@ -0,0 +1,42 @@
+#BlueJ class context
+comment0.params=reservationNo\ itemCode\ userID\ startDate\ noOfDays
+comment0.target=LibraryReservation(java.lang.String,\ java.lang.String,\ java.lang.String,\ java.lang.String,\ int)
+comment0.text=\n\ Constructor\ for\ objects\ of\ class\ LibraryReservation\n
+comment1.params=
+comment1.target=LibraryReservation()
+comment1.text=\n\ Default\ Constructor\ for\ objects\ of\ class\ LibraryReservation\n
+comment10.params=startDate
+comment10.target=void\ setStartDate(java.lang.String)
+comment11.params=noOfDays
+comment11.target=void\ setNoOfDays(int)
+comment12.params=
+comment12.target=java.lang.String\ toString()
+comment12.text=\n\ Concatenates\ values\ to\ output\ a\ formatted\ string.\n
+comment13.params=
+comment13.target=void\ printDetails()
+comment13.text=\n\ Prints\ to\ terminal,\ the\ details\ of\ the\ reservation.\n
+comment14.params=writer
+comment14.target=void\ writeData(java.io.PrintWriter)
+comment14.text=\n\ Forms\ field\ variables\ in\ a\ desired\ format,\ prints\n\ to\ the\ PrintWriter,\ and\ flush\ to\ the\ file.\n\ Takes\ Parameter\n\ \ PrintWriter\ @writer\n
+comment15.params=detailScanner
+comment15.target=void\ readData(java.util.Scanner)
+comment15.text=\n\ Populate\ the\ fields\ with\ details\ from\ the\ scanner\n\ Takes\ Parameters\n\ \ Scanner\ @detailScanner\n
+comment2.params=
+comment2.target=java.lang.String\ getReservationNo()
+comment2.text=\n\ Accessor\ Start\n
+comment3.params=
+comment3.target=java.lang.String\ getItemCode()
+comment4.params=
+comment4.target=java.lang.String\ userID()
+comment5.params=
+comment5.target=java.util.Date\ getStartDate()
+comment6.params=
+comment6.target=int\ getNoOfDays()
+comment7.params=reservationNo
+comment7.target=void\ setReservationNo(java.lang.String)
+comment7.text=\n\ Mutator\ Start\n
+comment8.params=itemCode
+comment8.target=void\ setItemCode(java.lang.String)
+comment9.params=userID
+comment9.target=void\ setUserID(java.lang.String)
+numComments=16
diff --git a/Semester 2/Programming 2/Project/Part 2/LibraryReservation.java b/Semester 2/Programming 2/Project/Part 4 Complete/LibraryReservation.java
similarity index 83%
rename from Semester 2/Programming 2/Project/Part 2/LibraryReservation.java
rename to Semester 2/Programming 2/Project/Part 4 Complete/LibraryReservation.java
index fbd4836..3cfcd62 100644
--- a/Semester 2/Programming 2/Project/Part 2/LibraryReservation.java	
+++ b/Semester 2/Programming 2/Project/Part 4 Complete/LibraryReservation.java	
@@ -31,14 +31,86 @@ public class LibraryReservation
         this.noOfDays = noOfDays;
     }
 
+    /**
+     * Default Constructor for objects of class LibraryReservation
+     */
     public LibraryReservation(){}
     
+    /**
+     * Accessor Start
+     */
+    
+    public String getReservationNo()
+    {
+        return reservationNo;
+    }
+    
+    public String getItemCode()
+    {
+        return itemCode;
+    }
+    
+    public String userID()
+    {
+        return userID;
+    }
+    
+    public Date getStartDate()
+    {
+        return startDate;
+    }
+    
+    public int getNoOfDays()
+    {
+        return noOfDays;
+    }
+    
+    /**
+     * Accessor End
+     */
+    
+    /**
+     * Mutator Start
+     */
+    
+    public void setReservationNo( String reservationNo )
+    {
+        this.reservationNo = reservationNo;
+    }
+    
+    public void setItemCode( String itemCode )
+    {
+        this.itemCode = itemCode;
+    }
+    
+    public void setUserID( String userID )
+    {
+        this.userID = userID;
+    }
+    
+    public void setStartDate( String startDate )
+    {
+        this.startDate = DateUtil.convertStringToDate( startDate );
+    }
+    
+    public void setNoOfDays( int noOfDays )
+    {
+        this.noOfDays = noOfDays;
+    }
+    
+    /**
+     * Mutator End
+     */
+    
+    /**
+     * Concatenates values to output a formatted string.
+     */
     public String toString()
     {
         return reservationNo + " " + userID + " " + itemCode;
     }
     
-    /*
+    /**
      * Prints to terminal, the details of the reservation.
      */
     public void printDetails()
@@ -50,12 +122,23 @@ public class LibraryReservation
                             "\nDuration: " + noOfDays + " days" );
     }
     
+    /**
+     * Forms field variables in a desired format, prints
+     * to the PrintWriter, and flush to the file.
+     * Takes Parameter
+     *  PrintWriter @writer
+     */
     public void writeData( PrintWriter writer )
     {
         writer.print( reservationNo + "," + itemCode + "," + userID + "," + DateUtil.convertDateToShortString( startDate ) + "," + noOfDays );
         writer.flush();
     }
     
+    /**
+     * Populate the fields with details from the scanner
+     * Takes Parameters
+     *  Scanner @detailScanner
+     */
     public void readData( Scanner detailScanner )
     {
         if ( detailScanner != null ) {
@@ -66,98 +149,4 @@ public class LibraryReservation
             this.noOfDays = Integer.parseInt( detailScanner.next().trim() );
         }
     }
-    
-    /*
-     * Start Accessor
-     */
-    
-    /*
-     * Return value of @reservationNo
-     */
-    public String getReservationNo()
-    {
-        return reservationNo;
-    }
-    
-    /*
-     * Return value of @itemCode
-     */
-    public String getItemCode()
-    {
-        return itemCode;
-    }
-    
-    /*
-     * Return value of @userID
-     */
-    public String getUserID()
-    {
-        return userID;
-    }
-    
-    /*
-     * Return value of @startDate
-     */
-    public Date getStartDate()
-    {
-        return startDate;
-    }
-    
-    /*
-     * Return value of @noOfDays
-     */
-    public int getNoOfDays()
-    {
-        return noOfDays;
-    }
-    
-    /*
-     * End Accessor
-     * 
-     * Start Mutator
-     */
-    
-    /*
-     * Set @reservationNo to a new value
-     */
-    public void setReservationNo( String reservationNo )
-    {
-        this.reservationNo = reservationNo;
-    }
-    
-    /*
-     * Set @itemCode to a new value
-     */
-    public void setItemCode( String itemCode )
-    {
-        this.itemCode = itemCode;
-    }
-    
-    /*
-     * Set @userID to a new value
-     */
-    public void setUserID( String userID )
-    {
-        this.userID = userID;
-    }
-    
-    /*
-     * Set @startDate to a new value
-     */
-    public void setStartDate( String startDate )
-    {
-        this.startDate = DateUtil.convertStringToDate( startDate );
-    }
-    
-    /*
-     * Set @noOfDays to a new value
-     */
-    public void setNoOfDays( int noOfDays )
-    {
-        this.noOfDays = noOfDays;
-    }
-    
-    /*
-     * End Mutator
-     */
 }
diff --git a/Semester 2/Programming 2/Project/Part 2/LibraryUser.class b/Semester 2/Programming 2/Project/Part 4 Complete/LibraryUser.class
similarity index 61%
rename from Semester 2/Programming 2/Project/Part 2/LibraryUser.class
rename to Semester 2/Programming 2/Project/Part 4 Complete/LibraryUser.class
index 743acac..8e3ccd4 100644
Binary files a/Semester 2/Programming 2/Project/Part 2/LibraryUser.class and b/Semester 2/Programming 2/Project/Part 4 Complete/LibraryUser.class differ
diff --git a/Semester 2/Programming 2/Project/Part 2/LibraryUser.ctxt b/Semester 2/Programming 2/Project/Part 4 Complete/LibraryUser.ctxt
similarity index 76%
rename from Semester 2/Programming 2/Project/Part 2/LibraryUser.ctxt
rename to Semester 2/Programming 2/Project/Part 4 Complete/LibraryUser.ctxt
index d551c9e..f9ccbd8 100644
--- a/Semester 2/Programming 2/Project/Part 2/LibraryUser.ctxt	
+++ b/Semester 2/Programming 2/Project/Part 4 Complete/LibraryUser.ctxt	
@@ -1,7 +1,7 @@
 #BlueJ class context
 comment0.params=
 comment0.target=LibraryUser()
-comment0.text=\n\ Constructor\ for\ objects\ of\ class\ LibraryUser.\ As\ fields\ \n
+comment0.text=\n\ Constructor\ for\ objects\ of\ class\ LibraryUser.\n
 comment1.params=
 comment1.target=java.lang.String\ getUserID()
 comment1.text=\n\ Accessor\ start\ -\ return\ values\ of\ corresponding\ variables.\n
@@ -9,13 +9,13 @@ comment10.params=title
 comment10.target=void\ setTitle(java.lang.String)
 comment11.params=writer
 comment11.target=void\ writeData(java.io.PrintWriter)
-comment11.text=\n\ Passed\ a\ PrintWriter,\ append\ field\ variables\ in\ a\ set\ format,\ and\ flush\ the\ buffer.\n
+comment11.text=\n\ Forms\ field\ variables\ in\ a\ desired\ format,\ prints\n\ to\ the\ PrintWriter,\ and\ flush\ to\ the\ file.\n\ Takes\ Parameter\n\ \ PrintWriter\ @writer\n
 comment12.params=
 comment12.target=void\ printDetails()
-comment12.text=\n\ Print\ to\ terminal,\ all\ relevant\ fields.\n
+comment12.text=\n\ Print\ to\ terminal\ all\ relevant\ fields.\n
 comment13.params=detailScanner
 comment13.target=void\ readData(java.util.Scanner)
-comment13.text=\n\ Passed\ a\ scanner\ object,\ assign\ relevant\ values\ to\ field\ variables.\n
+comment13.text=\n\ Populate\ the\ fields\ with\ details\ from\ the\ scanner\n\ Takes\ Parameters\n\ \ Scanner\ @detailScanner\n
 comment2.params=
 comment2.target=java.lang.String\ getSurname()
 comment3.params=
diff --git a/Semester 2/Programming 2/Project/Part 2/LibraryUser.java b/Semester 2/Programming 2/Project/Part 4 Complete/LibraryUser.java
similarity index 67%
rename from Semester 2/Programming 2/Project/Part 2/LibraryUser.java
rename to Semester 2/Programming 2/Project/Part 4 Complete/LibraryUser.java
index 8db603b..2736f29 100644
--- a/Semester 2/Programming 2/Project/Part 2/LibraryUser.java	
+++ b/Semester 2/Programming 2/Project/Part 4 Complete/LibraryUser.java	
@@ -3,7 +3,7 @@
  * Class LibraryUser to create a user of a library.
  * 
  * @George Wilkinson
- * @1.0
+ * @2.3
  */
 
 import java.util.Scanner;
@@ -15,30 +15,35 @@ public class LibraryUser
     private String userID, surname, firstName, otherInitials, title;
 
     /**
-     * Constructor for objects of class LibraryUser. As fields 
+     * Constructor for objects of class LibraryUser.
      */
     public LibraryUser(){}
 
     /*
      * Accessor start - return values of corresponding variables.
      */
-    public String getUserID(){
+    public String getUserID()
+    {
         return userID;
     }
     
-    public String getSurname(){
+    public String getSurname()
+    {
         return surname;
     }
 
-    public String getFirstName(){
+    public String getFirstName()
+    {
         return firstName;
     }
     
-    public String getOtherInitials(){
+    public String getOtherInitials()
+    {
         return otherInitials;
     }
     
-    public String getTitle(){
+    public String getTitle()
+    {
         return title;
     }
     
@@ -47,23 +52,28 @@ public class LibraryUser
      * Mutator Start - Set value of corresponding variables
      */
    
-    public void setUserID( String userID ){
+    public void setUserID( String userID )
+    {
         this.userID = userID;
     }
     
-    public void setSurname( String surname ){
+    public void setSurname( String surname )
+    {
         this.surname = surname;
     }
 
-    public void setFirstName( String firstName ){
+    public void setFirstName( String firstName )
+    {
         this.firstName = firstName;
     }
     
-    public void setOtherInitials( String otherInitials ){
+    public void setOtherInitials( String otherInitials )
+    {
         this.otherInitials = otherInitials;
     }
     
-    public void setTitle( String title ){
+    public void setTitle( String title )
+    {
         this.title = title;
     }
     
@@ -71,8 +81,11 @@ public class LibraryUser
      * Mutator End
      */
     
-    /*
-     * Passed a PrintWriter, append field variables in a set format, and flush the buffer.
+    /**
+     * Forms field variables in a desired format, prints
+     * to the PrintWriter, and flush to the file.
+     * Takes Parameter
+     *  PrintWriter @writer
      */
     public void writeData( PrintWriter writer ) 
     {
@@ -81,7 +94,7 @@ public class LibraryUser
     }
     
     /*
-     * Print to terminal, all relevant fields.
+     * Print to terminal all relevant fields.
      */
     public void printDetails()
     {
@@ -89,8 +102,10 @@ public class LibraryUser
         "\nName: " + title + " " + firstName + " " + otherInitials + " " + surname );
     }
     
-    /*
-     * Passed a scanner object, assign relevant values to field variables.
+    /**
+     * Populate the fields with details from the scanner
+     * Takes Parameters
+     *  Scanner @detailScanner
      */
     public void readData( Scanner detailScanner )
     {
diff --git a/Semester 2/Programming 2/Project/Part 2/Periodical.class b/Semester 2/Programming 2/Project/Part 4 Complete/Periodical.class
similarity index 94%
rename from Semester 2/Programming 2/Project/Part 2/Periodical.class
rename to Semester 2/Programming 2/Project/Part 4 Complete/Periodical.class
index 70f9287..eda0955 100644
Binary files a/Semester 2/Programming 2/Project/Part 2/Periodical.class and b/Semester 2/Programming 2/Project/Part 4 Complete/Periodical.class differ
diff --git a/Semester 2/Programming 2/Project/Part 2/Periodical.ctxt b/Semester 2/Programming 2/Project/Part 4 Complete/Periodical.ctxt
similarity index 85%
rename from Semester 2/Programming 2/Project/Part 2/Periodical.ctxt
rename to Semester 2/Programming 2/Project/Part 4 Complete/Periodical.ctxt
index 2f0574a..e3a01ef 100644
--- a/Semester 2/Programming 2/Project/Part 2/Periodical.ctxt	
+++ b/Semester 2/Programming 2/Project/Part 4 Complete/Periodical.ctxt	
@@ -13,5 +13,5 @@ comment3.target=void\ printDetails()
 comment3.text=\n\ Print\ to\ terminal,\ relevant\ field\ variable's\ values.\n
 comment4.params=detailScanner
 comment4.target=void\ readItemData(java.util.Scanner)
-comment4.text=\n\ Passed\ a\ scanner,\ assign\ relevant\ values\ to\ field\ variables.\n
+comment4.text=\n\ Populate\ the\ fields\ with\ details\ from\ the\ scanner\n\ Takes\ Parameters\n\ \ Scanner\ @detailScanner\n
 numComments=5
diff --git a/Semester 2/Programming 2/Project/Part 2/Periodical.java b/Semester 2/Programming 2/Project/Part 4 Complete/Periodical.java
similarity index 90%
rename from Semester 2/Programming 2/Project/Part 2/Periodical.java
rename to Semester 2/Programming 2/Project/Part 4 Complete/Periodical.java
index f2a28d2..ed9e243 100644
--- a/Semester 2/Programming 2/Project/Part 2/Periodical.java	
+++ b/Semester 2/Programming 2/Project/Part 4 Complete/Periodical.java	
@@ -3,7 +3,7 @@
  * Subclass of LibraryItem to create a periodical ( e.g. newspaper, tabloid ).
  * 
  * @George Wilkinson
- * @2.3
+ * @2.5
  */
 
 import java.util.Scanner;
@@ -42,8 +42,10 @@ public class Periodical extends PrintedItem
         super.printDetails();
     }
     
-    /*
-     * Passed a scanner, assign relevant values to field variables.
+    /**
+     * Populate the fields with details from the scanner
+     * Takes Parameters
+     *  Scanner @detailScanner
      */
     public void readItemData( Scanner detailScanner ){
         if ( detailScanner != null ) {
diff --git a/Semester 2/Programming 2/Project/Part 2/PrintedItem.class b/Semester 2/Programming 2/Project/Part 4 Complete/PrintedItem.class
similarity index 95%
rename from Semester 2/Programming 2/Project/Part 2/PrintedItem.class
rename to Semester 2/Programming 2/Project/Part 4 Complete/PrintedItem.class
index 219c507..62a9df4 100644
Binary files a/Semester 2/Programming 2/Project/Part 2/PrintedItem.class and b/Semester 2/Programming 2/Project/Part 4 Complete/PrintedItem.class differ
diff --git a/Semester 2/Programming 2/Project/Part 2/PrintedItem.ctxt b/Semester 2/Programming 2/Project/Part 4 Complete/PrintedItem.ctxt
similarity index 82%
rename from Semester 2/Programming 2/Project/Part 2/PrintedItem.ctxt
rename to Semester 2/Programming 2/Project/Part 4 Complete/PrintedItem.ctxt
index 7c972b9..a4f1f89 100644
--- a/Semester 2/Programming 2/Project/Part 2/PrintedItem.ctxt	
+++ b/Semester 2/Programming 2/Project/Part 4 Complete/PrintedItem.ctxt	
@@ -14,4 +14,5 @@ comment4.target=void\ printDetails()
 comment4.text=\n\ Field\ Mutator\ End\n
 comment5.params=detailScanner
 comment5.target=void\ readItemData(java.util.Scanner)
+comment5.text=\n\ Populate\ the\ fields\ with\ details\ from\ the\ scanner\n\ Takes\ Parameters\n\ \ Scanner\ @detailScanner\n
 numComments=6
diff --git a/Semester 2/Programming 2/Project/Part 2/PrintedItem.java b/Semester 2/Programming 2/Project/Part 4 Complete/PrintedItem.java
similarity index 90%
rename from Semester 2/Programming 2/Project/Part 2/PrintedItem.java
rename to Semester 2/Programming 2/Project/Part 4 Complete/PrintedItem.java
index de8467e..b86ae86 100644
--- a/Semester 2/Programming 2/Project/Part 2/PrintedItem.java	
+++ b/Semester 2/Programming 2/Project/Part 4 Complete/PrintedItem.java	
@@ -3,7 +3,7 @@
  * Subclass of LibraryItem to create objects of printed items in a library.
  * 
  * @George Wilkinson
- * @1.0
+ * @1.1
  */
 
 import java.util.Scanner;
@@ -52,6 +52,11 @@ public abstract class PrintedItem extends LibraryItem
         super.printDetails();
     }
     
+    /**
+     * Populate the fields with details from the scanner
+     * Takes Parameters
+     *  Scanner @detailScanner
+     */
     public void readItemData( Scanner detailScanner ){
         if ( detailScanner != null ) {
             this.noOfPages = Integer.parseInt( detailScanner.next().trim() );
diff --git a/Semester 2/Programming 2/Project/Part 2/README.TXT b/Semester 2/Programming 2/Project/Part 4 Complete/README.TXT
similarity index 100%
rename from Semester 2/Programming 2/Project/Part 2/README.TXT
rename to Semester 2/Programming 2/Project/Part 4 Complete/README.TXT
diff --git a/Semester 2/Programming 2/Project/Part 2/data/item_data_1.txt b/Semester 2/Programming 2/Project/Part 4 Complete/data/item_data_1.txt
similarity index 100%
rename from Semester 2/Programming 2/Project/Part 2/data/item_data_1.txt
rename to Semester 2/Programming 2/Project/Part 4 Complete/data/item_data_1.txt
diff --git a/Semester 2/Programming 2/Project/Part 2/data/item_data_1_v2.txt b/Semester 2/Programming 2/Project/Part 4 Complete/data/item_data_1_v2.txt
similarity index 100%
rename from Semester 2/Programming 2/Project/Part 2/data/item_data_1_v2.txt
rename to Semester 2/Programming 2/Project/Part 4 Complete/data/item_data_1_v2.txt
diff --git a/Semester 2/Programming 2/Project/Part 2/data/item_data_2.txt b/Semester 2/Programming 2/Project/Part 4 Complete/data/item_data_2.txt
similarity index 100%
rename from Semester 2/Programming 2/Project/Part 2/data/item_data_2.txt
rename to Semester 2/Programming 2/Project/Part 4 Complete/data/item_data_2.txt
diff --git a/Semester 2/Programming 2/Project/Part 2/data/item_data_2_generic_test.txt b/Semester 2/Programming 2/Project/Part 4 Complete/data/item_data_2_generic_test.txt
similarity index 100%
rename from Semester 2/Programming 2/Project/Part 2/data/item_data_2_generic_test.txt
rename to Semester 2/Programming 2/Project/Part 4 Complete/data/item_data_2_generic_test.txt
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similarity index 100%
rename from Semester 2/Programming 2/Project/Part 2/data/items_all.txt
rename to Semester 2/Programming 2/Project/Part 4 Complete/data/items_all.txt
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similarity index 100%
rename from Semester 2/Programming 2/Project/Part 2/data/items_and_user_data.txt
rename to Semester 2/Programming 2/Project/Part 4 Complete/data/items_and_user_data.txt
diff --git a/Semester 2/Programming 2/Project/Part 2/data/library_user_data.txt b/Semester 2/Programming 2/Project/Part 4 Complete/data/library_user_data.txt
similarity index 100%
rename from Semester 2/Programming 2/Project/Part 2/data/library_user_data.txt
rename to Semester 2/Programming 2/Project/Part 4 Complete/data/library_user_data.txt
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similarity index 100%
rename from Semester 2/Programming 2/Project/Part 2/data/testreservationwrite.txt
rename to Semester 2/Programming 2/Project/Part 4 Complete/data/testreservationwrite.txt
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similarity index 100%
rename from Semester 2/Programming 2/Project/Part 2/data/testuserwrite.txt
rename to Semester 2/Programming 2/Project/Part 4 Complete/data/testuserwrite.txt
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rename from Semester 2/Programming 2/Project/Part 2/doc/Book.html
rename to Semester 2/Programming 2/Project/Part 4 Complete/doc/Book.html
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rename to Semester 2/Programming 2/Project/Part 4 Complete/doc/DateUtil.html
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similarity index 100%
rename from Semester 2/Programming 2/Project/Part 2/doc/Library.html
rename to Semester 2/Programming 2/Project/Part 4 Complete/doc/Library.html
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rename to Semester 2/Programming 2/Project/Part 4 Complete/doc/constant-values.html
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rename from Semester 2/Programming 2/Project/Part 2/doc/index.html
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similarity index 100%
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similarity index 100%
rename from Semester 2/Programming 2/Project/Part 2/doc/package-list
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similarity index 100%
rename from Semester 2/Programming 2/Project/Part 2/doc/package-summary.html
rename to Semester 2/Programming 2/Project/Part 4 Complete/doc/package-summary.html
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similarity index 100%
rename from Semester 2/Programming 2/Project/Part 2/doc/resources/inherit.gif
rename to Semester 2/Programming 2/Project/Part 4 Complete/doc/resources/inherit.gif
diff --git a/Semester 2/Programming 2/Project/Part 2/doc/stylesheet.css b/Semester 2/Programming 2/Project/Part 4 Complete/doc/stylesheet.css
similarity index 100%
rename from Semester 2/Programming 2/Project/Part 2/doc/stylesheet.css
rename to Semester 2/Programming 2/Project/Part 4 Complete/doc/stylesheet.css
diff --git a/Semester 2/Programming 2/Project/Part 2/nullnull b/Semester 2/Programming 2/Project/Part 4 Complete/nullnull
similarity index 100%
rename from Semester 2/Programming 2/Project/Part 2/nullnull
rename to Semester 2/Programming 2/Project/Part 4 Complete/nullnull
diff --git a/Semester 2/Programming 2/Project/Part 4 Complete/package.bluej b/Semester 2/Programming 2/Project/Part 4 Complete/package.bluej
new file mode 100644
index 0000000..30276f6
--- /dev/null
+++ b/Semester 2/Programming 2/Project/Part 4 Complete/package.bluej	
@@ -0,0 +1,179 @@
+#BlueJ package file
+dependency1.from=Library
+dependency1.to=Book
+dependency1.type=UsesDependency
+dependency2.from=Library
+dependency2.to=Periodical
+dependency2.type=UsesDependency
+dependency3.from=Library
+dependency3.to=LibraryItem
+dependency3.type=UsesDependency
+dependency4.from=Library
+dependency4.to=CD
+dependency4.type=UsesDependency
+dependency5.from=Library
+dependency5.to=DVD
+dependency5.type=UsesDependency
+dependency6.from=Library
+dependency6.to=LibraryUser
+dependency6.type=UsesDependency
+dependency7.from=LibraryReservation
+dependency7.to=DateUtil
+dependency7.type=UsesDependency
+dependency8.from=Library
+dependency8.to=LibraryReservation
+dependency8.type=UsesDependency
+objectbench.height=76
+objectbench.width=940
+package.editor.height=874
+package.editor.width=814
+package.editor.x=0
+package.editor.y=31
+package.numDependencies=8
+package.numTargets=11
+package.showExtends=true
+package.showUses=true
+project.charset=UTF-8
+target1.editor.height=700
+target1.editor.width=900
+target1.editor.x=1017
+target1.editor.y=76
+target1.height=50
+target1.name=PrintedItem
+target1.naviview.expanded=true
+target1.showInterface=false
+target1.type=AbstractTarget
+target1.typeParameters=
+target1.width=110
+target1.x=130
+target1.y=240
+target10.editor.height=700
+target10.editor.width=900
+target10.editor.x=960
+target10.editor.y=146
+target10.height=50
+target10.name=AudioVisual
+target10.naviview.expanded=true
+target10.showInterface=false
+target10.type=AbstractTarget
+target10.typeParameters=
+target10.width=110
+target10.x=380
+target10.y=240
+target11.editor.height=700
+target11.editor.width=900
+target11.editor.x=40
+target11.editor.y=51
+target11.height=50
+target11.name=LibraryReservation
+target11.naviview.expanded=true
+target11.showInterface=false
+target11.type=ClassTarget
+target11.typeParameters=
+target11.width=160
+target11.x=230
+target11.y=440
+target2.editor.height=786
+target2.editor.width=960
+target2.editor.x=34
+target2.editor.y=174
+target2.height=50
+target2.name=CD
+target2.naviview.expanded=true
+target2.showInterface=false
+target2.type=ClassTarget
+target2.typeParameters=
+target2.width=80
+target2.x=360
+target2.y=340
+target3.editor.height=700
+target3.editor.width=900
+target3.editor.x=557
+target3.editor.y=177
+target3.height=60
+target3.name=LibraryItem
+target3.naviview.expanded=true
+target3.showInterface=false
+target3.type=AbstractTarget
+target3.typeParameters=
+target3.width=120
+target3.x=250
+target3.y=110
+target4.editor.height=1049
+target4.editor.width=1920
+target4.editor.x=0
+target4.editor.y=31
+target4.height=50
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+target5.editor.width=900
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+target5.editor.y=274
+target5.height=50
+target5.name=LibraryUser
+target5.naviview.expanded=true
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+target5.type=ClassTarget
+target5.typeParameters=
+target5.width=110
+target5.x=100
+target5.y=170
+target6.editor.height=700
+target6.editor.width=1619
+target6.editor.x=192
+target6.editor.y=267
+target6.height=50
+target6.name=Periodical
+target6.naviview.expanded=true
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+target6.type=ClassTarget
+target6.typeParameters=
+target6.width=90
+target6.x=60
+target6.y=380
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+target7.editor.x=0
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+target9.typeParameters=
+target9.width=100
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