a3 question2

assignment3/Question2/CastIronPot.java

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+/*
+ * Author: CHEN Yongyuan (Walter) 1930006025 from OOP(1007)
+ * Date: 2022-04-11
+ * Description: Mammal class
+ */
+
+public class CastIronPot {
+	private Rabbit rabbit;
+
+	/**
+	 * Constructor.
+	 *
+	 * @param rabbit
+	 */
+	public CastIronPot(Rabbit rabbit) {
+		this.rabbit = rabbit;
+	}
+
+	/**
+	 * Getter.
+	 *
+	 * @return rabbit
+	 */
+	public Rabbit getRabbit() {
+		return rabbit;
+	}
+
+	public static void testCastIronPot() {
+		Rabbit lsc1 = new Rabbit("LSC1", 3.9);
+		CastIronPot cip = new CastIronPot(lsc1);
+		Rabbit lsc2 = cip.getRabbit();
+		System.out.println(lsc1 == lsc2);
+	}
+}

assignment3/Question2/EuropeanRabbit.java

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+/*
+ * Author: CHEN Yongyuan (Walter) 1930006025 from OOP(1007)
+ * Date: 2022-04-11
+ * Description: European rabbit
+ */
+
+public class EuropeanRabbit extends Rabbit {
+	/**
+	 * Constructor.
+	 *
+	 * @param name   The name of the Rabbit.
+	 * @param weight The weight of the Rabbit.
+	 */
+	public EuropeanRabbit(String name, double weight) {
+		super(name, weight);
+	}
+
+	/**
+	 * Constructor. With default weight 2.0
+	 *
+	 * @param name The name of the Rabbit.
+	 */
+	public EuropeanRabbit(String name) {
+		this(name, 2.0);
+	}
+
+	/**
+	 * Test.
+	 */
+	public static void testEuropeanRabbit() {
+		// test first constructor
+		Rabbit rabbit = new EuropeanRabbit("Bugs Bunny");
+		System.out.println(rabbit.getName() == "Bugs Bunny");
+		System.out.println(rabbit.getWeight() == 2.0);
+		System.out.println(rabbit.isCookable() == true);
+
+		// test second constructor
+		Rabbit rabbit2 = new EuropeanRabbit("Daffy Duck", 3.0);
+		System.out.println(rabbit2.getName() == "Daffy Duck");
+		System.out.println(rabbit2.getWeight() == 3.0);
+		System.out.println(rabbit2.isCookable() == true);
+	}
+}

assignment3/Question2/FrankTheRabbit.java

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+/*
+ * Author: CHEN Yongyuan (Walter) 1930006025 from OOP(1007)
+ * Date: 2022-04-11
+ * Description: European rabbit
+ */
+
+public class FrankTheRabbit extends Rabbit {
+	/**
+	 * Constructor.
+	 *
+	 * With name "Frank" and weight of 100.0
+	 */
+	public FrankTheRabbit() {
+		super("Frank", 100.0);
+	}
+
+	/**
+	 * Frank rabbit can not be cooked.
+	 *
+	 * @return false
+	 */
+	@Override
+	public boolean isCookable() {
+		return false;
+	}
+
+	/**
+	 * Test.
+	 */
+	public static void testFrankTheRabbit() {
+		FrankTheRabbit frank = new FrankTheRabbit();
+		System.out.println(frank.getName() == "Frank");
+		System.out.println(frank.getWeight() == 100.0);
+		System.out.println(frank.isCookable() == false);
+	}
+}

assignment3/Question2/Human.java

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+/*
+ * Author: CHEN Yongyuan (Walter) 1930006025 from OOP(1007)
+ * Date: 2022-04-11
+ * Description: Human class
+ */
+
+public class Human extends Mammal {
+
+	/**
+	 * Constructor.
+	 * 
+	 * The Constructor take no argument. All human are named "Alice"
+	 */
+	public Human() {
+		super("Alice");
+	}
+
+	/**
+	 * Human cannot be cooked.
+	 *
+	 * @return false
+	 */
+	@Override
+	public boolean isCookable() {
+		return false;
+	}
+
+	/**
+	 * Test.
+	 */
+	public static void testHuman() {
+		Human human = new Human();
+		System.out.println(human.getName() == "Alice");
+		System.out.println(human.isCookable() == false);
+	}
+}

assignment3/Question2/LapinSauteChasseur.java

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+/*
+ * Author: CHEN Yongyuan (Walter) 1930006025 from OOP(1007)
+ * Date: 2022-04-11
+ * Description: Lapin Saute Chasseur
+ */
+
+public class LapinSauteChasseur extends EuropeanRabbit {
+	/**
+	 * Constructor.
+	 *
+	 * With name "Delicious" and has a weight of 0.5
+	 */
+	public LapinSauteChasseur() {
+		super("Delicious", 0.5);
+	}
+
+	/**
+	 * Test.
+	 */
+	public static void testLapinSauteChasseur() {
+		LapinSauteChasseur rabbit = new LapinSauteChasseur();
+		System.out.println(rabbit.getName() == "Delicious");
+		System.out.println(rabbit.getWeight() == 0.5);
+		System.out.println(rabbit.isCookable() == true);
+	}
+}

assignment3/Question2/Mammal.java

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+/*
+ * Author: CHEN Yongyuan (Walter) 1930006025 from OOP(1007)
+ * Date: 2022-04-11
+ * Description: Mammal class
+ */
+
+public class Mammal {
+	/**
+	 * Name of the mammal
+	 */
+	private String name;
+
+	/**
+	 * Constructor
+	 * 
+	 * @param name
+	 *             name of the mammal
+	 */
+	public Mammal(String name) {
+		this.name = name;
+	}
+
+	/**
+	 * Get the name of the mammal
+	 * 
+	 * @return name of the mammal
+	 */
+	public String getName() {
+		return name;
+	}
+
+	/**
+	 * Whether the mammal is can be cooked.
+	 * Some mammals can be cooked and some mammals cannot be cooked so for safety
+	 * reason the isCookable method just prints a message "Do not cook this!" and
+	 * returns false.
+	 *
+	 * @return false
+	 */
+	public boolean isCookable() {
+		System.out.println("Do not cook this!");
+		return false;
+	}
+
+	/**
+	 * Test.
+	 */
+	public static void testMammal() {
+		Mammal mammal = new Mammal("Mammal 1");
+		System.out.println(mammal.getName() == "Mammal 1");
+		System.out.println(mammal.isCookable() == false);
+	}
+}

assignment3/Question2/Rabbit.java

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+/*
+ * Author: CHEN Yongyuan (Walter) 1930006025 from OOP(1007)
+ * Date: 2022-04-11
+ * Description: Rabbit class
+ */
+
+public class Rabbit extends Mammal {
+	/**
+	 * The weight of the rabbit.
+	 */
+	private double weight;
+
+	/**
+	 * Getter for the weight of the rabbit.
+	 *
+	 * @return the weight of the rabbit
+	 */
+	public double getWeight() {
+		return weight;
+	}
+
+	/**
+	 * Constructor.
+	 *
+	 * @param name
+	 * 	  the name of the rabbit
+	 * @param weight
+	 * 	  the weight of the rabbit
+	 */
+	public Rabbit(String name, double weight) {
+		super(name);
+		this.weight = weight;
+	}
+
+	/**
+	 * Rabbit can be cooked.
+	 *
+	 * return true
+	 */
+	@Override
+	public boolean isCookable() {
+		return true;
+	}
+
+	/**
+	 * Test.
+	 */
+	public static void testRabbit() {
+		Rabbit rabbit = new Rabbit("Rabbit", 1.0);
+		System.out.println(rabbit.getName() == "Rabbit");
+		System.out.println(rabbit.getWeight() == 1.0);
+		System.out.println(rabbit.isCookable() == true);
+	}
+}

assignment3/Question2/Start.java

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+public class Start {
+	public static void main(String[] args) {
+		Mammal.testMammal();
+		Human.testHuman();
+		Rabbit.testRabbit();
+		EuropeanRabbit.testEuropeanRabbit();
+		LapinSauteChasseur.testLapinSauteChasseur();
+		FrankTheRabbit.testFrankTheRabbit();
+		CastIronPot.testCastIronPot();
+	}
+}