first commit

Semester 1/Programming 1/Java/examples/people2/Address.java

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+/**
+ * Class Address - used to store address details for a post address
+ * 
+ * @author  Michael Kolling
+ * @version 1.0, January 1999
+ */
+public class Address
+{
+    private String street;
+    private String town;
+    private String postCode;
+    private String country;
+
+    /**
+     * Construct an Address without country
+     */
+    public Address(String street, String town, String postCode)
+    {
+        this(street, town, postCode, "");
+    }
+
+    /**
+     * Construct an Address with full details
+     */
+    public Address(String street, String town, String postCode, String country)
+    {
+        this.street = street;
+        this.town = town;
+        this.postCode = postCode;
+        this.country = country;
+    }
+
+    /**
+     * Return a string representation of this object.
+     */
+    public String toString()
+    {
+        return street + "\n" +
+               town + " " + postCode + "\n" +
+               country + "\n";
+    }
+}

Semester 1/Programming 1/Java/examples/people2/Database.java

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+import java.util.ArrayList;
+import java.util.Iterator;
+
+/**
+ * A very simple database of people in a university. This class simply stores
+ * persons and, at request, lists them on standard output.
+ *
+ * Written as a first demo program for BlueJ.
+ *
+ * @author  Michael Kolling
+ * @version 1.1, March 2002
+ */
+
+public class Database {
+
+	private ArrayList persons;
+
+ 	/**
+	 * Create a new, empty person database.
+     */
+  	public Database() 
+	{
+        persons = new ArrayList();
+    }
+
+    /**
+     * Add a person to the database.
+     */
+    public void addPerson(Person p) 
+	{
+        persons.add(p);
+    }
+
+    /**
+     * List all the persons currently in the database on standard out.
+     */
+    public void listAll () 
+    {
+        for (Iterator i = persons.iterator(); i.hasNext();) {
+            System.out.println(i.next());
+        }
+    }
+}

Semester 1/Programming 1/Java/examples/people2/Person.java

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+/**
+ * A person class for a simple BlueJ demo program. Person is used as
+ * an abstract superclass of more specific person classes.
+ *
+ * @author  Michael Kolling
+ * @version 1.0, January 1999
+ */
+
+abstract class Person
+{
+    private String name;
+    private int yearOfBirth;
+    private Address address;
+
+    /**
+     * Create a person with given name and age.
+     */
+    Person(String name, int yearOfBirth)
+    {
+        this.name = name;
+        this.yearOfBirth = yearOfBirth;
+    }
+
+    /**
+     * Set a new name for this person.
+     */
+    public void setName(String newName)
+    {
+        name = newName;
+    }
+
+    /**
+     * Return the name of this person.
+     */
+    public String getName()
+    {
+        return name;
+    }
+    
+    /**
+     * Set a new birth year for this person.
+     */
+    public void setYearOfBirth(int newYearOfBirth)
+    {
+        yearOfBirth = newYearOfBirth;
+    }
+
+    /**
+     * Return the birth year of this person.
+     */
+    public int getYearOfBirth()
+    {
+        return yearOfBirth;
+    }
+
+    /**
+     * Set a new address for this person.
+     */
+    public void setAddress(String street, String town, String postCode)
+    {
+        address = new Address(street, town, postCode);
+    }
+
+    /**
+     * Return the address of this person.
+     */
+    public Address getAddress()
+    {
+        return address;
+    }
+
+    /**
+     * Return a string representation of this object.
+     */
+    public String toString()    // redefined from "Object"
+    {
+        return "Name: " + name + "\n" +
+               "Year of birth: " + yearOfBirth + "\n";
+    }
+}

Semester 1/Programming 1/Java/examples/people2/README.TXT

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+BlueJ example project "people2"
+
+Copyright (c) Michael K<>lling, Monash University, 1999-2000
+
+This is a very simple BlueJ demo project. It illustrates some aspects of
+object-orientation as well as aspects of BlueJ.
+
+This project is an extension of "people". It is identical to "people"
+except for the addition of an "Address" class and an address attribute
+in Person.
+
+This project may be used to study object creation and method calls from
+within other object (non-interactive).

Semester 1/Programming 1/Java/examples/people2/Staff.java

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+/**
+ * A class representing staff members for a simple BlueJ demo program.
+ *
+ * @author  Michael Kolling
+ * @version 1.0, January 1999
+ */
+
+class Staff extends Person
+{
+    private String room;
+
+    /**
+     * Create a staff member with default settings for detail information.
+     */
+    Staff()
+    {
+        super("(unknown name)", 0000);
+        room = "(unknown room)";
+    }
+
+    /**
+     * Create a staff member with given name, year of birth and room
+     * number.
+     */
+    Staff(String name, int yearOfBirth, String roomNumber)
+    {
+        super(name, yearOfBirth);
+        room = roomNumber;
+    }
+
+    /**
+     * Set a new room number for this person.
+     */
+    public void setRoom(String newRoom)
+    {
+        room = newRoom;
+    }
+
+    /**
+     * Return the room number of this person.
+     */
+    public String getRoom()
+    {
+        return room;
+    }
+
+    /**
+     * Return a string representation of this object.
+     */
+    public String toString()    // redefined from "Person"
+    {
+        return super.toString() +
+               "Staff member\n" +
+               "Room: " + room + "\n";
+    }
+
+}
+

Semester 1/Programming 1/Java/examples/people2/Student.java

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+/**
+ * A class representing students for a simple BlueJ demo program.
+ *
+ * @author  Michael Kolling
+ * @version 1.0, January 1999
+ */
+class Student extends Person
+{
+    private String SID;    // student ID number
+
+    /**
+     * Create a student with default settings for detail information.
+     */
+    public Student()
+    {
+        super("(unknown name)", 0000);
+        SID = "(unknown ID)";
+    }
+
+    /**
+     * Create a student with given name, year of birth and student ID
+     */
+    public Student(String name, int yearOfBirth, String studentID)
+    {
+        super(name, yearOfBirth);
+        SID = studentID;
+    }
+
+    /**
+     * Return the stident ID of this student.
+     */
+    public String getStudentID()
+    {
+        return SID;
+    }
+
+    /**
+     * Return a string representation of this object.
+     */
+    public String toString()    // redefined from "Person"
+    {
+        return super.toString() +
+               "Student\n" +
+               "Student ID: " + SID + "\n";
+    }
+}
+

Semester 1/Programming 1/Java/examples/people2/bluej.pkg

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+#BlueJ package file
+dependency1.from=Person
+dependency1.to=Address
+dependency1.type=UsesDependency
+dependency2.from=Database
+dependency2.to=Person
+dependency2.type=UsesDependency
+package.editor.height=308
+package.editor.width=445
+package.editor.x=60
+package.editor.y=82
+package.numDependencies=2
+package.numTargets=5
+target1.height=50
+target1.modifiers=0
+target1.name=Student
+target1.type=ClassTarget
+target1.width=80
+target1.x=260
+target1.y=220
+target2.height=50
+target2.modifiers=400
+target2.name=Person
+target2.type=ClassTarget
+target2.width=80
+target2.x=190
+target2.y=110
+target3.height=50
+target3.modifiers=0
+target3.name=Staff
+target3.type=ClassTarget
+target3.width=80
+target3.x=130
+target3.y=220
+target4.height=50
+target4.modifiers=0
+target4.name=Database
+target4.type=ClassTarget
+target4.width=80
+target4.x=60
+target4.y=40
+target5.height=50
+target5.modifiers=0
+target5.name=Address
+target5.type=ClassTarget
+target5.width=80
+target5.x=300
+target5.y=20