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George Wilkinson
2024-03-21 22:58:58 +00:00
parent 68fa81d02f
commit e241fe8bd6
49 changed files with 1950 additions and 210 deletions
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65
Semester 2/Programming 2/Assessment 4 Notes Normal file
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@@ -0,0 +1,65 @@
private void readFilmData(String fileName) throws IOException //1
{
File filmFile = new File(filename); //2
Scanner scanner1 = new Scanner( filmFile ); //3
while (scanner1.hasNext() ) //4 could throw a FileNotFoundExcpetion
{
String line = scanner1.nextLine(); //5
Scanner scanner2 = new Scanner(line);
scanner2.useDelimiter("[ ]*(,)[ ]*");
String filmTitle = scanner2.next();
String filmRating = scanner2.next();
int short = scanner2.nextInt();
// other code here to read & store rest of data
scanner2.close();
}
scanner1.close();
}
Citizen ->
English ->
Mancunian,
Londoner
Scots
Citizen person1;
English person2;
Scots person3;
Mancunian person4;
Londoner person5;
person1 = new Londoner();
person1 type Citizen. Legal
person2 = new Mancunian();
person2 type English. Legal
person5 = new English();
person5 type Londoner. Illegal
persona2 = new Scots();
person2 type English. Illegal
factorial(3) ->
x = 2
y = factorial(2)
factorial(2) ->
x = 1
y = factorial(1) -> 1
n*y = 2*1 = 2
n*y = 2*3 = 6
public int countTree(BinTreeNode t)
{
int count;
if (t == null)
count = 0;
else
count = countTree(t.leftChild) + 1 + countTree(t.rightChild);
return count;
}

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Semester 2/Programming 2/Project/Part 2/Diary$1.class Normal file
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Semester 2/Programming 2/Project/Part 2/Diary$DayInDiary$Entry.class Normal file
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Semester 2/Programming 2/Project/Part 2/Diary$DayInDiary.class Normal file
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17
Semester 2/Programming 2/Project/Part 2/Diary.ctxt Normal file
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@@ -0,0 +1,17 @@
#BlueJ class context
comment0.params=
comment0.target=Diary()
comment0.text=\n\ Constructor\ for\ objects\ of\ class\ Diary\n
comment1.params=itemReservation
comment1.target=void\ addReservation(LibraryReservation)
comment1.text=\n\ Method\ for\ adding\ a\ reservation\ to\ the\ diary.\ \n\ @parameter\ itemReservation,\ of\ type\ ItemReservation\ \n
comment2.params=startDate\ endDate
comment2.target=void\ printEntries(java.util.Date,\ java.util.Date)
comment2.text=\n\ Method\ for\ displaying\ the\ reservations\ between\ specified\ dates.\ \n\n\ @parameter\ \ \ \ \ startDate,\ of\ type\ Date\n\ @parameter\ \ \ \ \ endDate,\ of\ type\ Date\n
comment3.params=itemReservation
comment3.target=void\ deleteReservation(LibraryReservation)
comment3.text=\n\ Method\ for\ deleting\ a\ reservation\ from\ the\ diary.\ \n\ @parameter\ itemReservation,\ of\ type\ ItemReservation\ \n
comment4.params=date
comment4.target=LibraryReservation[]\ getReservations(java.util.Date)
comment4.text=\n\ Accessor\ method\ for\ returning\ all\ reservations\ that\ have\ entries\ \n\ in\ the\ diary\ for\ a\ particular\ date.\ \n\n\ @parameter\ \ \ \ \ date,\ of\ type\ Date\ \n\ @return\ \ \ \ \ \ \ \ an\ array\ of\ reservations,\ or\ null\ if\ no\ entry\ for\ that\ date\n
numComments=5

205
Semester 2/Programming 2/Project/Part 2/Diary.java Normal file
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@@ -0,0 +1,205 @@
import java.util.Date;
import java.util.Map;
import java.util.HashMap;
import java.util.ArrayList;
/**
* A class Diary that represents a "diary" of library item reservations.
*
* The diary is structured as a Map of entries in which each entry corresponds
* to a specific day. As the map is not accessed in a sequential fashion, it
* doesn't matter whether the actual map class is a TreeMap or a HashMap.
*
* @author D E Newton
*
*/
public class Diary
{
private Map<Date, DayInDiary> dayInDiaryMap;
/**
* Constructor for objects of class Diary
*/
public Diary()
{
// create diary as a map
dayInDiaryMap = new HashMap<Date, DayInDiary>();
}
/**
* Method for adding a reservation to the diary.
* @parameter itemReservation, of type ItemReservation
*/
public void addReservation(LibraryReservation itemReservation)
{
Date date = itemReservation.getStartDate();
for(int day=1; day<=itemReservation.getNoOfDays(); day++)
{
if( !dayInDiaryMap.containsKey(date) )
{
// add new day to diary if no previous entries for this day
dayInDiaryMap.put(date, new DayInDiary(date));
}
dayInDiaryMap.get(date).addEntry(itemReservation, day);
date = DateUtil.nextDate(date);
}
}
/**
* Method for displaying the reservations between specified dates.
*
* @parameter startDate, of type Date
* @parameter endDate, of type Date
*/
public void printEntries(Date startDate, Date endDate)
{
if( DateUtil.daysBetween(startDate, endDate)<0 )
{
// startDate after endDate
System.out.println("*** Error in method displayEntries(): The specified end date is before the start date ***");
}
else
{
System.out.println("\n\nDiary: Reservations for period " + DateUtil.convertDateToShortString(startDate)
+ " to " + DateUtil.convertDateToShortString(endDate) + " inclusive");
System.out.println("=================================================================");
for(Date date=startDate; date.compareTo(endDate)<=0; date = DateUtil.nextDate(date))
{
String longDate = DateUtil.convertDateToLongString(date);
System.out.print(longDate + ":");
if( dayInDiaryMap.containsKey(date) )
{
DayInDiary dayInDiary = dayInDiaryMap.get(date);
dayInDiary.printEntries();
}
else
System.out.println(" No reservations\n");
}
}
}
/**
* Method for deleting a reservation from the diary.
* @parameter itemReservation, of type ItemReservation
*/
public void deleteReservation(LibraryReservation itemReservation)
{
Date date = itemReservation.getStartDate();
for(int day=1; day<=itemReservation.getNoOfDays(); day++)
{
DayInDiary dayInDiary = dayInDiaryMap.get(date);
dayInDiary.deleteEntry(itemReservation);
if( dayInDiary.getDaysEntries().size()==0 )
dayInDiaryMap.remove(date);
date = DateUtil.nextDate(date);
}
}
/**
* Accessor method for returning all reservations that have entries
* in the diary for a particular date.
*
* @parameter date, of type Date
* @return an array of reservations, or null if no entry for that date
*/
public LibraryReservation[] getReservations(Date date)
{
DayInDiary dayinDiary = dayInDiaryMap.get(date);
if( dayinDiary==null )
return null;
else
return dayinDiary.getReservations();
}
// inner class, only needed in the Diary class
private class DayInDiary
{
// reservations for the day
private ArrayList<Entry> daysEntries;
private Date date;
/*
* Constructor for objects of class DayInDiary
*/
private DayInDiary(Date date)
{
this.date = date;
daysEntries = new ArrayList<Entry>();
}
private ArrayList<Entry> getDaysEntries()
{
return daysEntries;
}
private LibraryReservation[] getReservations()
{
int noOfEntries = daysEntries.size();
LibraryReservation[] itemReservations = new LibraryReservation[noOfEntries];
for(int i=0; i<noOfEntries; i++)
itemReservations[i] = daysEntries.get(i).getReservation();
return itemReservations;
}
private void addEntry(LibraryReservation itemReservation, int dayNo)
{
daysEntries.add(new Entry(itemReservation, dayNo));
}
private void deleteEntry(LibraryReservation itemReservation)
{
// find the entry for this reservation and delete it
Entry toBeDeletedEntry = null;
for(Entry entry : daysEntries)
{
if( entry.getReservation()==itemReservation ) // in this situation, this is better than using "equals()"
{
toBeDeletedEntry = entry;
break;
}
}
daysEntries.remove(toBeDeletedEntry);
}
private void printEntries()
{
int size = daysEntries.size();
if( size>0 )
{
System.out.println(" " + size + " reservation(s)");
for( Entry entry: daysEntries )
{
LibraryReservation itemReservation = entry.getReservation();
int reservationDay = DateUtil.daysBetween(itemReservation.getStartDate(), date) + 1;;
System.out.println(" " + itemReservation + ", day " + reservationDay + " of " + itemReservation.getNoOfDays());
}
}
else
{
System.out.println("*** Unexpected error in displayEntries() ***");
System.out.println("*** No entries for this date so it should not be in the diary ***");
}
System.out.println();
}
// an inner class of the DaysDiary class
private class Entry
{
private LibraryReservation itemReservation;
private int reservationDay; // e.g. second day is day 2 of 4 for a reservation spanning 4 days
private Entry(LibraryReservation itemReservation, int reservationDay)
{
this.itemReservation = itemReservation;
this.reservationDay = reservationDay;
}
private LibraryReservation getReservation()
{
return itemReservation;
}
}
}
}

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Semester 2/Programming 2/Project/Part 2/Library.class
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41
Semester 2/Programming 2/Project/Part 2/Library.ctxt
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@@ -5,22 +5,41 @@ 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=prefix\ length
comment4.target=java.lang.String\ generateUserID(java.lang.String,\ int)
comment4.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
comment5.params=
comment5.target=void\ writeUserData()
comment5.text=\n\ A\ method\ to\ output\ all\ user\ data\ to\ a\ file\ using\ a\ fileDialog\ to\ specify\ file\ location.\n\ \n\ Note\:\ Potentially\ could\ implement\ the\ HashSet\ made\ for\ GenerateUserID\ to\ avoid\ unnecessary\ recursion.\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\ printAll()
comment6.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
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\ readData()
comment7.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
numComments=8
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

310
Semester 2/Programming 2/Project/Part 2/Library.java
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@@ -1,11 +1,3 @@
/**
* Class to create objects of a Library, which can hold and report on assets held within
*
* @George Wilkinson
* @3.0
*/
// Import all required libraries. Not using .* as it is not good practice due to potential conflicts.
import java.util.List;
import java.util.ArrayList;
@@ -14,21 +6,33 @@ import java.util.Scanner;
import java.util.Random;
import java.util.Map;
import java.util.HashMap;
import java.util.Date;
import java.io.File;
import java.io.IOException;
import java.awt.FileDialog;
import java.awt.Frame;
import java.io.PrintWriter;
/**
* Class to create objects of a Library, which can hold and report on assets held within
*
* @author George Wilkinson
* @version 3.0
*/
public class Library
{
// private List<LibraryItem> itemList; // Initialise an ArrayList of name itemList to store Library Items
// private List<LibraryUser> userList; // Initialise an ArrayList of name userList to store Library Users
private HashSet<String> uuidSet; // Initialise a Hash Set of name uuidSet ( unique user identifier ) to store unique user IDs for efficient O(1) searching
/* No longer needed, as we can use the keys of customerMap.
private HashSet<String> uuidSet; // Initialise a Hash Set of name uuidSet ( unique user identifier ) to store unique user IDs for efficient O(1) searching
*/
private Map<String, LibraryUser> customerMap;
private Map<String, LibraryItem> itemsMap;
private Map<String, LibraryReservation> libraryReservationMap;
private Diary diary;
/*
* Constructor for objects of class Library
*/
@@ -36,17 +40,26 @@ public class Library
{
// itemList = new ArrayList<LibraryItem>();
// userList = new ArrayList<LibraryUser>();
uuidSet = new HashSet<String>();
/* No longer needed, can use keys of customerMap.
uuidSet = new HashSet<String>();
*/
customerMap = new HashMap<String, LibraryUser>();
itemsMap = new HashMap<String, LibraryItem>();
libraryReservationMap = new HashMap<String, LibraryReservation>();
diary = new Diary();
}
/**
* Storing Objects Start
*/
/*
* Inserts object value item alongside key of @itemCode into @itemsMap.
*/
public void storeItem( LibraryItem item )
private void storeItem( LibraryItem item )
{
// itemList.add( item );
itemsMap.put( item.getItemCode(), item );
@@ -56,31 +69,55 @@ public class Library
* Inserts object value user alongside key of @userID into @customerMap.
* If the userID is set to unknown, it will call @generateUserID.
*/
public void storeUser( LibraryUser user )
private void storeUser( LibraryUser user )
{
// userList.add( user );
System.out.println( "User Storing: " + user.getFirstName() );
if ( user.getUserID().equals( "unknown" ) )
{
user.setUserID( generateUserID( "AB-", 6 ) );
}
customerMap.put( user.getUserID(), user );
customerMap.put( user.getUserID(), user ); // Store the user along with the userID.
}
/*
* Inserts object value reservation alongside key of @reservationNo into @libraryReservationMap.
*/
public void storeLibraryReservation( LibraryReservation reservation )
private void storeLibraryReservation( LibraryReservation reservation )
{
libraryReservationMap.put( reservation.getReservationNo(), reservation );
diary.addReservation( reservation );
}
public void generateReservationNo()
/**
* Storing Objects End
*/
/**
* 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()
{
if( libraryReservationMap.values() = null )
return "000001";
/*
* Originally, I did not check if the number was already taken, however the last part of step 4 introduced deletion.
* When a reservation is deleted that does not have the highest reservation number, conflicting reservation numbers are generated.
* e.g. 5 reservations, reservation 3 ID: 000003 is deleted. The next reservation number would be 000004, as the size + 1 = 4
*/
String candidateNo = String.format("%06d", libraryReservationMap.size() + 1);
for ( int i = 1; libraryReservationMap.containsKey( candidateNo ); i++ )
{
candidateNo = String.format( "%06d", libraryReservationMap.size() + i );
}
return candidateNo;
}
/*
* Returns a random unique user ID by specifying
* @prefix - arbitrary alphanumeric prefix
@@ -97,13 +134,13 @@ 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)
*/
public String generateUserID( String prefix, int length )
private String generateUserID( String prefix, int length )
{
Random random = new Random();
final int offset = (int) Math.pow( 10, (length-1) ); // Static integer equal to 10^(length-1) lower than length. This will allow for the factor to be consistent.
int intLength = (int) ( Math.pow( 10, length ) ) - offset ; // Integer equal to 10^(length) minus the offset. This creates a ceiling for the ID range.
if ( uuidSet.size() > ( intLength - 1 ) ) { // No idea why I get an error for equals FIX LATER
if ( customerMap.size() == intLength ) {
System.out.println("Too many user IDs delegated for current range, increasing ID range by a factor of 10");
return generateUserID( prefix, length+1 );
/*
@@ -118,19 +155,100 @@ public class Library
* Add the offset to a random number, to create a floor to the ID range.
*/
if ( uuidSet.contains( uuid ) )
if ( customerMap.containsKey( uuid ) ) // Previously uuidSet.contains, replaced to de-dupe held data.
{
generateUserID( prefix, length ); // If the ID generated is already contained in the hashset, the method should be called again.
}
uuidSet.add( uuid ); // Add the UUID to the hash set so it cannot be returned from this method more than once.
/* No longer needed, as we add the user and the ID to the customerMap when storing.
* uuidSet.add( uuid )
*/
return uuid;
}
/**
* Generate IDs End
*/
/**
* Print Object Details Start
*/
/*
* Prints to the terminal, in a human-readable format, library reservation in the itemList
*
* 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() ){
System.out.println("---------------");
reservation.printDetails();
}
System.out.println( "---------------\nReservation Details End\n" );
}
/*
* Prints to the terminal, in a human-readable format, all items in the itemList
*
* Contains a marker at the start and end to visualise in terminal output.
*/
public void printAll()
{
System.out.println("\n\nItem Details Start");
for( LibraryItem item : itemsMap.values() )
{
System.out.println("---------------");
item.printDetails();
}
System.out.println("---------------");
System.out.println("Items Details End\n\n---------------\n\nUser Details Start\n");
for ( LibraryUser user : customerMap.values() )
{
System.out.println("---------------");
user.printDetails();
}
System.out.println("---------------\nUser Details End\n");
printLibraryReservations();
}
public void printDiaryEntries( String start, String end )
{
diary.printEntries( DateUtil.convertStringToDate( start ), DateUtil.convertStringToDate( end ) );
}
/**
* Print Object Details End
*/
/**
* Write Files Start
*/
/*
* Write all current library reservations to a file specified by the user.
*/
public void writeLibraryReservationData()
{
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() ) );
for ( LibraryReservation reservation : libraryReservationMap.values() ) {
reservation.writeData( writer );
}
writer.close();
}
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." );
}
}
/*
* A method to output all user data to a file using a fileDialog to specify file location.
*
* Note: Potentially could implement the HashSet made for GenerateUserID to avoid unnecessary recursion.
*/
public void writeUserData()
{
@@ -140,6 +258,7 @@ public class Library
fileBox.setVisible( true );
PrintWriter writer = new PrintWriter( new File( fileBox.getDirectory() + fileBox.getFile() ) );
// for ( LibraryUser user : userList ){
writer.println("[Library User data]");
for ( LibraryUser user : customerMap.values() ) {
user.writeData( writer );
}
@@ -150,20 +269,37 @@ public class Library
}
}
/*
* Prints to the terminal, in a human-readable format, all items in the itemList
*
* Contains a marker at the start and end to visualise in terminal output.
/**
* Write Files End
*/
public void printAll()
/**
* Read Files Start
*/
/*
* Read Library Reservation Data from a file specified by the user.
*/
public void readLibraryReservationData()
{
System.out.println("\n\nStart Detail Print");
for( LibraryItem item : itemsMap.values() )
{
System.out.println("---------------");
item.printDetails();
try {
Frame frame = null; // Initialise null frame
FileDialog fileBox = new FileDialog( frame, "Load", FileDialog.LOAD ); // Initialise file dialog box to save written data.
fileBox.setVisible( true );
Scanner reservationScanner = new Scanner ( new File( fileBox.getDirectory() + fileBox.getFile() ) );
while ( reservationScanner.hasNextLine() )
{
Scanner detailScanner = new Scanner( reservationScanner.nextLine() ).useDelimiter(",");
LibraryReservation reservation = new LibraryReservation();
reservation.readData( detailScanner );
storeLibraryReservation( reservation );
detailScanner.close();
}
reservationScanner.close(); // Close Scanner
}
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." );
}
System.out.println("End Detail Print\n");
}
/*
@@ -184,7 +320,7 @@ public class Library
Scanner fileScanner = new Scanner( new File( fileBox.getDirectory() + fileBox.getFile() ) );
String typeFlag = "book"; // Set a default flag to support legacy files.
while( fileScanner.hasNextLine() ){
while( fileScanner.hasNextLine() ) {
String lineItem = fileScanner.nextLine();
@@ -211,54 +347,116 @@ public class Library
}
// Could be a switch case to be more efficient
// Unfortunately cannot use switch case with string comparisons in Java 8.
// Check current flag for data processing.
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" ) ) {
// Process Book Data
Scanner detailScanner = new Scanner ( lineItem ).useDelimiter(","); // Create a new scanner to grab the values in a comma separated list
LibraryItem book = new Book();
book.readItemData( detailScanner );
storeItem( book ); // Store the new LibraryItem in the itemList
item = new Book();
}
else if ( typeFlag.equals( "periodical" ) ) {
// Process Periodic Data
Scanner detailScanner = new Scanner ( lineItem ).useDelimiter(",");
LibraryItem periodical = new Periodical();
periodical.readItemData( detailScanner );
storeItem( periodical );
item = new Periodical();
}
else if ( typeFlag.equals( "cd" ) ) {
//Process CD Data
Scanner detailScanner = new Scanner ( lineItem ).useDelimiter(",");
LibraryItem cd = new CD();
cd.readItemData( detailScanner );
storeItem( cd );
item = new CD();
}
else if ( typeFlag.equals( "dvd" ) ) {
//Process DVD Data
Scanner detailScanner = new Scanner ( lineItem ).useDelimiter(",");
LibraryItem dvd = new DVD();
dvd.readItemData( detailScanner );
storeItem( dvd );
item = new DVD();
}
else if ( typeFlag.equals( "user" ) ) {
//Process User Data
System.out.println( "User: " + lineItem );
Scanner detailScanner = new Scanner ( lineItem ).useDelimiter(",");
LibraryUser user = new LibraryUser();
user.readData( detailScanner );
storeUser( user );
continue;
}
else if ( typeFlag.equals( "generic" ) ) {
// Output unaccepted lines to terminal
System.out.println( lineItem );
continue;
}
item.readItemData( detailScanner );
storeItem( item );
detailScanner.close();
}
}
fileScanner.close();
}
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." );
}
}
/**
* Read Files End
*/
/**
* Other Methods
*/
/*
* Create a reservation to allow a user to reserve an item from the library.
*/
public boolean makeLibraryReservation( String userID, String itemCode, String startDate, int noOfDays )
{
if ( !customerMap.containsKey( userID ) )
{
System.out.println( "User does not exist" );
return false;
}
if ( !itemsMap.containsKey( itemCode ) )
{
System.out.println( "Item does not exist in library" );
return false;
}
if ( !DateUtil.isValidDateString( startDate ) )
{
System.out.println( "Date is not valid" );
return false;
}
if ( !(noOfDays > 0) )
{
System.out.println( "Reservation must be more than 0 days" );
return false;
}
Date start = DateUtil.convertStringToDate( startDate );
/*
* 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 );
/** 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.
**/
for ( LibraryReservation diaryReservation : diary.getReservations( start ) )
{
if ( diaryReservation.toString().equals( reservation.toString() ) )
{
return false;
}
}
storeLibraryReservation( reservation );
return true;
}
public void deleteLibraryReservation( String reservationNo )
{
if ( libraryReservationMap.containsKey( reservationNo ) )
{
diary.deleteReservation( libraryReservationMap.get( reservationNo ) );
libraryReservationMap.remove( reservationNo );
}
}
}

BIN
Semester 2/Programming 2/Project/Part 2/LibraryItem.class
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14
Semester 2/Programming 2/Project/Part 2/LibraryItem.java
View File

@@ -1,15 +1,13 @@
/**
* Superclass of items / assets stored in a Library.
*
* @George Wilkinson
* @3.1
*/
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
*/
public abstract class LibraryItem
{
// instance variables

BIN
Semester 2/Programming 2/Project/Part 2/LibraryReservation.class
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Binary file not shown.

67
Semester 2/Programming 2/Project/Part 2/LibraryReservation.ctxt
View File

@@ -3,33 +3,44 @@ 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=java.lang.String\ getReservationNo()
comment1.text=\n\ Return\ value\ of\ @reservationNo\n
comment10.params=noOfDays
comment10.target=void\ setNoOfDays(int)
comment10.text=\n\ Set\ @noOfDays\ to\ a\ new\ value\n
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\ getItemCode()
comment2.text=\n\ Return\ value\ of\ @itemCode\n
comment2.target=java.lang.String\ toString()
comment3.params=
comment3.target=java.lang.String\ getUserID()
comment3.text=\n\ Return\ value\ of\ @userID\n
comment4.params=
comment4.target=java.util.Date\ getStartDate()
comment4.text=\n\ Return\ value\ of\ @startDate\n
comment5.params=
comment5.target=int\ getNoOfDays()
comment5.text=\n\ Return\ value\ of\ @noOfDays\n
comment6.params=reservationNo
comment6.target=void\ setReservationNo(java.lang.String)
comment6.text=\n\ Set\ @reservationNo\ to\ a\ new\ value\n
comment7.params=itemCode
comment7.target=void\ setItemCode(java.lang.String)
comment7.text=\n\ Set\ @itemCode\ to\ a\ new\ value\n
comment8.params=userID
comment8.target=void\ setUserID(java.lang.String)
comment8.text=\n\ Set\ @userID\ to\ a\ new\ value\n
comment9.params=startDate
comment9.target=void\ setStartDate(java.lang.String)
comment9.text=\n\ Set\ @startDate\ to\ a\ new\ value\n
numComments=11
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

38
Semester 2/Programming 2/Project/Part 2/LibraryReservation.java
View File

@@ -7,6 +7,8 @@
*/
import java.util.Date;
import java.io.PrintWriter;
import java.util.Scanner;
public class LibraryReservation
{
@@ -29,6 +31,42 @@ public class LibraryReservation
this.noOfDays = noOfDays;
}
public LibraryReservation(){}
public String toString()
{
return reservationNo + " " + userID + " " + itemCode;
}
/*
* Prints to terminal, the details of the reservation.
*/
public void printDetails()
{
System.out.println( "Reservation Number: " + reservationNo +
"\nItem Code: " + itemCode +
"\nUser ID: " + userID +
"\nDate Commencing: " + DateUtil.convertDateToShortString( startDate ) +
"\nDuration: " + noOfDays + " days" );
}
public void writeData( PrintWriter writer )
{
writer.print( reservationNo + "," + itemCode + "," + userID + "," + DateUtil.convertDateToShortString( startDate ) + "," + noOfDays );
writer.flush();
}
public void readData( Scanner detailScanner )
{
if ( detailScanner != null ) {
this.reservationNo = detailScanner.next().trim();
this.itemCode = detailScanner.next().trim();
this.userID = detailScanner.next().trim();
this.startDate = DateUtil.convertStringToDate( detailScanner.next().trim() );
this.noOfDays = Integer.parseInt( detailScanner.next().trim() );
}
}
/*
* Start Accessor
*/

2
Semester 2/Programming 2/Project/Part 2/LibraryUser.ctxt
View File

@@ -1,7 +1,7 @@
#BlueJ class context
comment0.params=
comment0.target=LibraryUser()
comment0.text=\n\ Constructor\ for\ objects\ of\ class\ LibraryUser\n
comment0.text=\n\ Constructor\ for\ objects\ of\ class\ LibraryUser.\ As\ fields\ \n
comment1.params=
comment1.target=java.lang.String\ getUserID()
comment1.text=\n\ Accessor\ start\ -\ return\ values\ of\ corresponding\ variables.\n

2
Semester 2/Programming 2/Project/Part 2/LibraryUser.java
View File

@@ -15,7 +15,7 @@ public class LibraryUser
private String userID, surname, firstName, otherInitials, title;
/**
* Constructor for objects of class LibraryUser
* Constructor for objects of class LibraryUser. As fields
*/
public LibraryUser(){}

1
Semester 2/Programming 2/Project/Part 2/data/testreservationwrite.txt Normal file
View File

@@ -0,0 +1 @@
0,LM005002,AB-217000,24-03-2024,3

9
Semester 2/Programming 2/Project/Part 2/data/testuserwrite.txt
View File

@@ -1,4 +1,5 @@
AB-906182, Smith, Sara, C, Ms
AB-241496, Evans, David, , Dr
AB-769390, Newton, David, E, Dr
AB-396038, Gregson, Brian, R T, Mr
[Library User data]
AB-217000, Gregson, Brian, R T, Mr
AB-711612, Smith, Sara, C, Ms
AB-861906, Evans, David, , Dr
AB-573164, Newton, David, E, Dr

379
Semester 2/Programming 2/Project/Part 2/doc/DateUtil.html Normal file
View File

@@ -0,0 +1,379 @@
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<!--NewPage-->
<HTML>
<HEAD>
<!-- Generated by javadoc (build 1.8.0_402) on Thu Mar 21 22:06:18 GMT 2024 -->
<META http-equiv="Content-Type" content="text/html; charset=UTF-8">
<TITLE>
DateUtil
</TITLE>
<META NAME="date" CONTENT="2024-03-21">
<LINK REL ="stylesheet" TYPE="text/css" HREF="stylesheet.css" TITLE="Style">
<SCRIPT type="text/javascript">
function windowTitle()
{
if (location.href.indexOf('is-external=true') == -1) {
parent.document.title="DateUtil";
}
}
</SCRIPT>
<NOSCRIPT>
</NOSCRIPT>
</HEAD>
<BODY BGCOLOR="white" onload="windowTitle();">
<HR>
<HR>
<!-- ======== START OF CLASS DATA ======== -->
<H2>
Class DateUtil</H2>
<PRE>
java.lang.Object
<IMG SRC="./resources/inherit.gif" ALT="extended by "><B>DateUtil</B>
</PRE>
<HR>
<DL>
<DT><PRE>public class <B>DateUtil</B><DT>extends java.lang.Object</DL>
</PRE>
<P>
A class DateUtil with the following methods for dealing with dates.
public static String convertDateToLongString(Date date)
public static String convertDateToShortString(Date date)
public static Date convertStringToDate(String dateString)
public static int daysBetween(Date startDate, Date endDate)
public static Date incrementDate(Date date, int noOfDays)
public static boolean isLeapYear(int year)
public static boolean isValidDateString(String dateString)
public static Date nextDate(Date date)
<P>
<P>
<DL>
<DT><B>Author:</B></DT>
<DD>D E Newton</DD>
</DL>
<HR>
<P>
<!-- =========== FIELD SUMMARY =========== -->
<A NAME="field_summary"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
<B>Field Summary</B></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;java.text.SimpleDateFormat</CODE></FONT></TD>
<TD><CODE><B><A HREF="DateUtil.html#dateFormatter">dateFormatter</A></B></CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
</TABLE>
&nbsp;
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
<A NAME="constructor_summary"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
<B>Constructor Summary</B></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="DateUtil.html#DateUtil()">DateUtil</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
</TABLE>
&nbsp;
<!-- ========== METHOD SUMMARY =========== -->
<A NAME="method_summary"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
<B>Method Summary</B></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="DateUtil.html#convertDateToLongString(java.util.Date)">convertDateToLongString</A></B>(java.util.Date&nbsp;date)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Converts a Date object to a corresponding String in
the long date pattern style "Saturday, 25 March 2023".</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="DateUtil.html#convertDateToShortString(java.util.Date)">convertDateToShortString</A></B>(java.util.Date&nbsp;date)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Converts a Date object to a corresponding String in
the short date pattern style "25-03-2023".</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;java.util.Date</CODE></FONT></TD>
<TD><CODE><B><A HREF="DateUtil.html#convertStringToDate(java.lang.String)">convertStringToDate</A></B>(java.lang.String&nbsp;dateString)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Converts a string in the short date pattern style "25-03-2023"
to a corresponding Date object.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="DateUtil.html#daysBetween(java.util.Date, java.util.Date)">daysBetween</A></B>(java.util.Date&nbsp;startDate,
java.util.Date&nbsp;endDate)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Calculates the number of days between two given dates, startDate and endDate.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;java.util.Date</CODE></FONT></TD>
<TD><CODE><B><A HREF="DateUtil.html#incrementDate(java.util.Date, int)">incrementDate</A></B>(java.util.Date&nbsp;date,
int&nbsp;noOfDays)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Given date, a Date object, and noOfDays, an int, the method returns
a Date object corresponding to noOfDays later than date.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="DateUtil.html#isLeapYear(int)">isLeapYear</A></B>(int&nbsp;year)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Given year, an int, the method checks to see if the year
is a leap year.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="DateUtil.html#isValidDateString(java.lang.String)">isValidDateString</A></B>(java.lang.String&nbsp;dateString)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Given dateString, a String, the method checks to see if string
corresponds to a valid shortDatePattern.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;java.util.Date</CODE></FONT></TD>
<TD><CODE><B><A HREF="DateUtil.html#nextDate(java.util.Date)">nextDate</A></B>(java.util.Date&nbsp;date)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Given date, a Date object, the method returns
a Date object corresponding to the next day.</TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
</TR>
</TABLE>
&nbsp;
<P>
<!-- ============ FIELD DETAIL =========== -->
<A NAME="field_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Field Detail</B></FONT></TH>
</TR>
</TABLE>
<A NAME="dateFormatter"><!-- --></A><H3>
dateFormatter</H3>
<PRE>
public static java.text.SimpleDateFormat <B>dateFormatter</B></PRE>
<DL>
<DL>
</DL>
</DL>
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<A NAME="constructor_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Constructor Detail</B></FONT></TH>
</TR>
</TABLE>
<A NAME="DateUtil()"><!-- --></A><H3>
DateUtil</H3>
<PRE>
public <B>DateUtil</B>()</PRE>
<DL>
</DL>
<!-- ============ METHOD DETAIL ========== -->
<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Method Detail</B></FONT></TH>
</TR>
</TABLE>
<A NAME="convertDateToLongString(java.util.Date)"><!-- --></A><H3>
convertDateToLongString</H3>
<PRE>
public static java.lang.String <B>convertDateToLongString</B>(java.util.Date&nbsp;date)</PRE>
<DL>
<DD>Converts a Date object to a corresponding String in
the long date pattern style "Saturday, 25 March 2023".
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>date</CODE> - a Date object
<DT><B>Returns:</B><DD>a String, containing a long date pattern</DL>
</DD>
</DL>
<HR>
<A NAME="convertDateToShortString(java.util.Date)"><!-- --></A><H3>
convertDateToShortString</H3>
<PRE>
public static java.lang.String <B>convertDateToShortString</B>(java.util.Date&nbsp;date)</PRE>
<DL>
<DD>Converts a Date object to a corresponding String in
the short date pattern style "25-03-2023".
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>date</CODE> - a Date object
<DT><B>Returns:</B><DD>a String, containing a short date pattern</DL>
</DD>
</DL>
<HR>
<A NAME="convertStringToDate(java.lang.String)"><!-- --></A><H3>
convertStringToDate</H3>
<PRE>
public static java.util.Date <B>convertStringToDate</B>(java.lang.String&nbsp;dateString)</PRE>
<DL>
<DD>Converts a string in the short date pattern style "25-03-2023"
to a corresponding Date object.
Any leading or trailing spaces are first removed from the date string.
The String parameter that represent a date as a string must be in the
format dd-mm-yyy (e.g. 25-03-2023 or 25-3-2023) where dd represents
one or two digits representing the day in the month, similarly for
mm representing the month in the year and yyyy represents the four
digits for the year.
A RuntimeException is thrown if the date string is not recognised as
a valid date. Such exceptions do not need to be caught or thrown as
they are unchecked exceptions, but can be caught if necessary.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>dateString</CODE> - a Date object
<DT><B>Returns:</B><DD>the Date object</DL>
</DD>
</DL>
<HR>
<A NAME="daysBetween(java.util.Date, java.util.Date)"><!-- --></A><H3>
daysBetween</H3>
<PRE>
public static int <B>daysBetween</B>(java.util.Date&nbsp;startDate,
java.util.Date&nbsp;endDate)</PRE>
<DL>
<DD>Calculates the number of days between two given dates, startDate and endDate.
If startDate is after endDate then the number of days returned will be negative.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>startDate</CODE> - a Date object<DD><CODE>endDate</CODE> - a Date object
<DT><B>Returns:</B><DD>an int, number of days between the dates</DL>
</DD>
</DL>
<HR>
<A NAME="incrementDate(java.util.Date, int)"><!-- --></A><H3>
incrementDate</H3>
<PRE>
public static java.util.Date <B>incrementDate</B>(java.util.Date&nbsp;date,
int&nbsp;noOfDays)</PRE>
<DL>
<DD>Given date, a Date object, and noOfDays, an int, the method returns
a Date object corresponding to noOfDays later than date.
If noOfDays is negative, the resulting Date object will be before date.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>date</CODE> - a Date object<DD><CODE>noOfDays</CODE> - an int
<DT><B>Returns:</B><DD>a Date</DL>
</DD>
</DL>
<HR>
<A NAME="isLeapYear(int)"><!-- --></A><H3>
isLeapYear</H3>
<PRE>
public static boolean <B>isLeapYear</B>(int&nbsp;year)</PRE>
<DL>
<DD>Given year, an int, the method checks to see if the year
is a leap year.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>year,</CODE> - an int
<DT><B>Returns:</B><DD>a boolean, true only if the year is a leap year.</DL>
</DD>
</DL>
<HR>
<A NAME="isValidDateString(java.lang.String)"><!-- --></A><H3>
isValidDateString</H3>
<PRE>
public static boolean <B>isValidDateString</B>(java.lang.String&nbsp;dateString)</PRE>
<DL>
<DD>Given dateString, a String, the method checks to see if string
corresponds to a valid shortDatePattern.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>dateString,</CODE> - a String
<DT><B>Returns:</B><DD>a boolean, true only if the dateString is a valid pattern</DL>
</DD>
</DL>
<HR>
<A NAME="nextDate(java.util.Date)"><!-- --></A><H3>
nextDate</H3>
<PRE>
public static java.util.Date <B>nextDate</B>(java.util.Date&nbsp;date)</PRE>
<DL>
<DD>Given date, a Date object, the method returns
a Date object corresponding to the next day.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>noOfDays</CODE> - an int
<DT><B>Returns:</B><DD>a Date</DL>
</DD>
</DL>
<!-- ========= END OF CLASS DATA ========= -->
<HR>
<HR>
</BODY>
</HTML>

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<!--NewPage-->
<HTML>
<HEAD>
<!-- Generated by javadoc (build 1.8.0_402) on Thu Mar 21 21:31:47 GMT 2024 -->
<META http-equiv="Content-Type" content="text/html; charset=UTF-8">
<TITLE>
Diary
</TITLE>
<META NAME="date" CONTENT="2024-03-21">
<LINK REL ="stylesheet" TYPE="text/css" HREF="stylesheet.css" TITLE="Style">
<SCRIPT type="text/javascript">
function windowTitle()
{
if (location.href.indexOf('is-external=true') == -1) {
parent.document.title="Diary";
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}
</SCRIPT>
<NOSCRIPT>
</NOSCRIPT>
</HEAD>
<BODY BGCOLOR="white" onload="windowTitle();">
<HR>
<HR>
<!-- ======== START OF CLASS DATA ======== -->
<H2>
Class Diary</H2>
<PRE>
java.lang.Object
<IMG SRC="./resources/inherit.gif" ALT="extended by "><B>Diary</B>
</PRE>
<HR>
<DL>
<DT><PRE>public class <B>Diary</B><DT>extends java.lang.Object</DL>
</PRE>
<P>
A class Diary that represents a "diary" of library item reservations.
The diary is structured as a Map of entries in which each entry corresponds
to a specific day. As the map is not accessed in a sequential fashion, it
doesn't matter whether the actual map class is a TreeMap or a HashMap.
<P>
<P>
<DL>
<DT><B>Author:</B></DT>
<DD>D E Newton</DD>
</DL>
<HR>
<P>
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
<A NAME="constructor_summary"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
<B>Constructor Summary</B></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="Diary.html#Diary()">Diary</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Constructor for objects of class Diary</TD>
</TR>
</TABLE>
&nbsp;
<!-- ========== METHOD SUMMARY =========== -->
<A NAME="method_summary"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
<B>Method Summary</B></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Diary.html#addReservation(LibraryReservation)">addReservation</A></B>(LibraryReservation&nbsp;itemReservation)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Method for adding a reservation to the diary.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Diary.html#deleteReservation(LibraryReservation)">deleteReservation</A></B>(LibraryReservation&nbsp;itemReservation)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Method for deleting a reservation from the diary.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;LibraryReservation[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="Diary.html#getReservations(java.util.Date)">getReservations</A></B>(java.util.Date&nbsp;date)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accessor method for returning all reservations that have entries
in the diary for a particular date.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Diary.html#printEntries(java.util.Date, java.util.Date)">printEntries</A></B>(java.util.Date&nbsp;startDate,
java.util.Date&nbsp;endDate)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Method for displaying the reservations between specified dates.</TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
</TR>
</TABLE>
&nbsp;
<P>
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<A NAME="constructor_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Constructor Detail</B></FONT></TH>
</TR>
</TABLE>
<A NAME="Diary()"><!-- --></A><H3>
Diary</H3>
<PRE>
public <B>Diary</B>()</PRE>
<DL>
<DD>Constructor for objects of class Diary
<P>
</DL>
<!-- ============ METHOD DETAIL ========== -->
<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Method Detail</B></FONT></TH>
</TR>
</TABLE>
<A NAME="addReservation(LibraryReservation)"><!-- --></A><H3>
addReservation</H3>
<PRE>
public void <B>addReservation</B>(LibraryReservation&nbsp;itemReservation)</PRE>
<DL>
<DD>Method for adding a reservation to the diary.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="deleteReservation(LibraryReservation)"><!-- --></A><H3>
deleteReservation</H3>
<PRE>
public void <B>deleteReservation</B>(LibraryReservation&nbsp;itemReservation)</PRE>
<DL>
<DD>Method for deleting a reservation from the diary.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getReservations(java.util.Date)"><!-- --></A><H3>
getReservations</H3>
<PRE>
public LibraryReservation[] <B>getReservations</B>(java.util.Date&nbsp;date)</PRE>
<DL>
<DD>Accessor method for returning all reservations that have entries
in the diary for a particular date.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>an array of reservations, or null if no entry for that date</DL>
</DD>
</DL>
<HR>
<A NAME="printEntries(java.util.Date, java.util.Date)"><!-- --></A><H3>
printEntries</H3>
<PRE>
public void <B>printEntries</B>(java.util.Date&nbsp;startDate,
java.util.Date&nbsp;endDate)</PRE>
<DL>
<DD>Method for displaying the reservations between specified dates.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<!-- ========= END OF CLASS DATA ========= -->
<HR>
<HR>
</BODY>
</HTML>

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<!--NewPage-->
<HTML>
<HEAD>
<!-- Generated by javadoc (build 1.8.0_402) on Thu Mar 21 11:36:09 GMT 2024 -->
<META http-equiv="Content-Type" content="text/html; charset=UTF-8">
<TITLE>
Library
</TITLE>
<META NAME="date" CONTENT="2024-03-21">
<LINK REL ="stylesheet" TYPE="text/css" HREF="stylesheet.css" TITLE="Style">
<SCRIPT type="text/javascript">
function windowTitle()
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<NOSCRIPT>
</NOSCRIPT>
</HEAD>
<BODY BGCOLOR="white" onload="windowTitle();">
<HR>
<HR>
<!-- ======== START OF CLASS DATA ======== -->
<H2>
Class Library</H2>
<PRE>
java.lang.Object
<IMG SRC="./resources/inherit.gif" ALT="extended by "><B>Library</B>
</PRE>
<HR>
<DL>
<DT><PRE>public class <B>Library</B><DT>extends java.lang.Object</DL>
</PRE>
<P>
<HR>
<P>
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
<A NAME="constructor_summary"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
<B>Constructor Summary</B></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="Library.html#Library()">Library</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
</TABLE>
&nbsp;
<!-- ========== METHOD SUMMARY =========== -->
<A NAME="method_summary"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
<B>Method Summary</B></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Library.html#printAll()">printAll</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Library.html#readData()">readData</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="Library.html#writeUserData()">writeUserData</A></B>()</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
</TR>
</TABLE>
&nbsp;
<P>
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<A NAME="constructor_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Constructor Detail</B></FONT></TH>
</TR>
</TABLE>
<A NAME="Library()"><!-- --></A><H3>
Library</H3>
<PRE>
public <B>Library</B>()</PRE>
<DL>
</DL>
<!-- ============ METHOD DETAIL ========== -->
<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Method Detail</B></FONT></TH>
</TR>
</TABLE>
<A NAME="printAll()"><!-- --></A><H3>
printAll</H3>
<PRE>
public void <B>printAll</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="readData()"><!-- --></A><H3>
readData</H3>
<PRE>
public void <B>readData</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="writeUserData()"><!-- --></A><H3>
writeUserData</H3>
<PRE>
public void <B>writeUserData</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
</DL>
<!-- ========= END OF CLASS DATA ========= -->
<HR>
<HR>
</BODY>
</HTML>

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<TITLE>
All Classes
</TITLE>
<META NAME="date" CONTENT="2024-02-29">
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<LINK REL ="stylesheet" TYPE="text/css" HREF="stylesheet.css" TITLE="Style">
@@ -22,7 +22,7 @@ All Classes
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<BR>
</FONT></TD>
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<HEAD>
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<META http-equiv="Content-Type" content="text/html; charset=UTF-8">
<TITLE>
All Classes
</TITLE>
<META NAME="date" CONTENT="2024-02-29">
<META NAME="date" CONTENT="2024-03-21">
<LINK REL ="stylesheet" TYPE="text/css" HREF="stylesheet.css" TITLE="Style">
@@ -22,7 +22,7 @@ All Classes
<TABLE BORDER="0" WIDTH="100%" SUMMARY="">
<TR>
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<BR>
</FONT></TD>
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<HTML>
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<META http-equiv="Content-Type" content="text/html; charset=UTF-8">
<TITLE>
Constant Field Values
</TITLE>
<META NAME="date" CONTENT="2024-02-29">
<META NAME="date" CONTENT="2024-03-21">
<LINK REL ="stylesheet" TYPE="text/css" HREF="stylesheet.css" TITLE="Style">

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<TITLE>
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@@ -23,7 +23,7 @@ Generated Documentation (Untitled)
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@@ -31,7 +31,7 @@ Frame Alert</H2>
<P>
This document is designed to be viewed using the frames feature. If you see this message, you are using a non-frame-capable web client.
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/home/boris/OneDrive/Computer Science Year 1/Semester 2/Programming 2/Project/Part 2/Book.java
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<---- end of javadoc command ---->
Loading source file /home/boris/OneDrive/Computer Science Year 1/Semester 2/Programming 2/Project/Part 2/Book.java...
Loading source file /home/boris/OneDrive/Computer Science Year 1/Semester 2/Programming 2/Project/Part 2/DateUtil.java...
Constructing Javadoc information...
Standard Doclet version 1.8.0_392
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/home/boris/OneDrive/Computer Science Year 1/Semester 2/Programming 2/Project/Part 2/DateUtil.java:224: warning - @param argument "year," is not a parameter name.
/home/boris/OneDrive/Computer Science Year 1/Semester 2/Programming 2/Project/Part 2/DateUtil.java:238: warning - @param argument "dateString," is not a parameter name.
/home/boris/OneDrive/Computer Science Year 1/Semester 2/Programming 2/Project/Part 2/DateUtil.java:259: warning - @param argument "noOfDays" is not a parameter name.
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@@ -39,3 +42,4 @@ Generating /home/boris/OneDrive/Computer Science Year 1/Semester 2/Programming 2
Generating /home/boris/OneDrive/Computer Science Year 1/Semester 2/Programming 2/Project/Part 2/doc/allclasses-noframe.html...
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@@ -24,7 +24,7 @@
Classes</FONT>&nbsp;
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@@ -29,8 +29,8 @@ Package &lt;Unnamed&gt;
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<TD WIDTH="15%"><B><A HREF="Book.html" title="class in &lt;Unnamed&gt;">Book</A></B></TD>
<TD>&nbsp;</TD>
<TD WIDTH="15%"><B><A HREF="DateUtil.html" title="class in &lt;Unnamed&gt;">DateUtil</A></B></TD>
<TD>A class DateUtil with the following methods for dealing with dates.</TD>
</TR>
</TABLE>
&nbsp;

5
Semester 2/Programming 2/Project/Part 2/nullnull
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@@ -1,4 +1 @@
AB-906182, Smith, Sara, C, Ms
AB-241496, Evans, David, , Dr
AB-769390, Newton, David, E, Dr
AB-396038, Gregson, Brian, R T, Mr
[Library User data]

2
Semester 2/Programming 2/Project/Part 2/package.bluej
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@@ -165,7 +165,7 @@ target8.width=80
target8.x=70
target8.y=10
target9.editor.height=1049
target9.editor.width=960
target9.editor.width=1920
target9.editor.x=0
target9.editor.y=31
target9.height=50

1
Semester 2/Programming 2/Week 10 Revision/Q1.md Normal file
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File Input / Output

15
Semester 2/Programming 2/Week 10 Revision/Q3.md Normal file
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Recursion via factorial function
```java
int fact(int n)
{
int result;
if(n==0 || n==1)
return 1;
result = fact(n-1) * n;
return result;
}
```
Since factorial(0) or factorial(1) is just 1, we return 1 in these scenarios
If we have factorial(2), we would do factorial(1)\*2 = 2
fact(5) = factorial(4) \* 5 = 5\*4\*3\*2\*1 = 120

35
Semester 2/Programming 2/Week 10 Revision/Q4.md Normal file
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```java
public class IntNode
{
public int info;
public IntNode next;
}
```
![](Pasted%20image%2020240319224232.png)
a) Write code to add 50 to the appropriate field of the node pointed to by temp.
```java
temp.info += 50;
```
b) Write code to remove from the list the item after temp.
```java
temp.next = temp.next.next;
```
c) Write the code to remove from the list temp.
```java
temp.info = temp.next.info; // Assign the next node's value to temp - this will overwrite temp's value.
temp.next = temp.next.next; // Set the pointer for temp's next node to the node after the value taken for temp - this effectively clones temp.next and replaces temp.
```
d) Write code to go through the list and to sum all the values within the list. You may assume the existence of head, a reference to the start of the list.
```java
IntNode current = head;
int sum = 0;
while ( current != null ) {
sum += current.info;
current = current.next;
}
```

53
Semester 2/Programming 2/Week 10 Revision/Q5.md Normal file
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a) List the order in which the nodes are visited in:
post-order.
![](Pasted%20image%2020240319225420.png)
D,B,F,G,E,C,A
pre-order
A,B,D,C,E,F,G
in-order
D,B,F,E,G,C,A
b)
```java
public class BinTreeNode
{
public String info;
public BinTreeNode leftChild, rightChild;
}
```
```java
public void postTraverse( BinTreeNode node )
{
if ( node != null )
{
postTraverse( node.leftNode );
postTraverse( node.rightNode );
System.out.println( node.info );
}
}
```
c) The following method counts the number of nodes in the tree
```java
public int countTree(BinTreeNode t)
{
int count;
if (t == null)
count = 0
else
count = countTree(t.leftChild)+countTree(t.rightChild)+1;
return count;
}
```
![](Pasted%20image%2020240319234142.png)
countTree(root)
-> count = countTree(t.leftChild) + countTree(t.rightChild+1)
countTree(t.leftChild)
-> return 1, since left and right child null
countTree(t.rightChild)
-> return 1, since left and right child null
count = 1 + 1 + 1 = 3