esempi capitolo 12

src/com/oracle/java8/professional/oop/Danneggiabile.java

@@ -0,0 +1,8 @@
+package com.oracle.java8.professional.oop;
+
+public interface Danneggiabile {
+
+	void riceviColpo(double intensita);
+
+	boolean isDistrutto();
+}

src/com/oracle/java8/professional/oop/DanneggiabileComponent.java

@@ -0,0 +1,19 @@
+package com.oracle.java8.professional.oop;
+
+public class DanneggiabileComponent implements Danneggiabile {
+	private double vita;
+
+	public DanneggiabileComponent(double vita) {
+		this.vita = vita;
+	}
+
+	@Override
+	public void riceviColpo(double intensita) {
+		this.vita -= intensita;
+	}
+
+	@Override
+	public boolean isDistrutto() {
+		return this.vita <= 0;
+	}
+}

src/com/oracle/java8/professional/oop/Figura.java

@@ -0,0 +1,13 @@
+package com.oracle.java8.professional.oop;
+
+public abstract class Figura {
+	private double x, y;
+
+	public abstract void disegna();
+
+	public void sposta(double deltaX, double deltaY) {
+		x += deltaX;
+		y += deltaY;
+		disegna();
+	}
+}

src/com/oracle/java8/professional/oop/Localizzabile.java

@@ -0,0 +1,10 @@
+package com.oracle.java8.professional.oop;
+
+public interface Localizzabile {
+
+	double getX();
+
+	double getY();
+
+	double getZ();
+}

src/com/oracle/java8/professional/oop/LocalizzabileComponent.java

@@ -0,0 +1,28 @@
+package com.oracle.java8.professional.oop;
+
+public class LocalizzabileComponent implements Localizzabile {
+	private double x;
+	private double y;
+	private double z;
+
+	public LocalizzabileComponent(double x, double y, double z) {
+		this.x = x;
+		this.y = y;
+		this.z = z;
+	}
+
+	@Override
+	public double getX() {
+		return this.x;
+	}
+
+	@Override
+	public double getY() {
+		return this.y;
+	}
+
+	@Override
+	public double getZ() {
+		return this.z;
+	}
+}

src/com/oracle/java8/professional/oop/Mina.java

@@ -0,0 +1,46 @@
+package com.oracle.java8.professional.oop;
+
+public class Mina implements Localizzabile, Danneggiabile, Urticante {
+	private static final double DANNO = 20;
+	private static final double VITA = 50;
+
+	private final Danneggiabile dh;
+	private final Urticante uh;
+	private final Localizzabile lh;
+
+	public Mina(double x, double y, double z) {
+		this.dh = new DanneggiabileComponent(VITA);
+		this.uh = new UrticanteComponent(DANNO);
+		this.lh = new LocalizzabileComponent(x, y, z);
+	}
+
+	@Override
+	public void riceviColpo(double intensita) {
+		dh.riceviColpo(intensita);
+	}
+
+	@Override
+	public boolean isDistrutto() {
+		return dh.isDistrutto();
+	}
+
+	@Override
+	public double getX() {
+		return lh.getX();
+	}
+
+	@Override
+	public double getY() {
+		return lh.getY();
+	}
+
+	@Override
+	public double getZ() {
+		return lh.getZ();
+	}
+
+	@Override
+	public double getDanno() {
+		return uh.getDanno();
+	}
+}

src/com/oracle/java8/professional/oop/Singleton1.java

@@ -0,0 +1,7 @@
+package com.oracle.java8.professional.oop;
+
+public class Singleton1 {
+	public static final Singleton1 instance = new Singleton1();
+
+	private Singleton1() {}
+}

src/com/oracle/java8/professional/oop/Singleton2.java

@@ -0,0 +1,14 @@
+package com.oracle.java8.professional.oop;
+
+public class Singleton2 {
+	private static Singleton2 instance;
+
+	public static synchronized Singleton2 getInstance() {
+		if (instance == null) {
+			instance = new Singleton2();
+		}
+		return instance;
+	}
+
+	private Singleton2() {}
+}

src/com/oracle/java8/professional/oop/Singleton3.java

@@ -0,0 +1,5 @@
+package com.oracle.java8.professional.oop;
+
+public enum Singleton3 {
+	INSTANCE;
+}

src/com/oracle/java8/professional/oop/Urticante.java

@@ -0,0 +1,6 @@
+package com.oracle.java8.professional.oop;
+
+public interface Urticante {
+
+	double getDanno();
+}

src/com/oracle/java8/professional/oop/UrticanteComponent.java

@@ -0,0 +1,14 @@
+package com.oracle.java8.professional.oop;
+
+public class UrticanteComponent implements Urticante {
+	private double danno;
+
+	public UrticanteComponent(double danno) {
+		this.danno = danno;
+	}
+
+	@Override
+	public double getDanno() {
+		return this.danno;
+	}
+}