Prove domande capitolo 6

src/it/oracle/associate/java8/test/Calculations.java

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+package it.oracle.associate.java8.test;
+
+public class Calculations {
+
+	private enum CardinalPoint {
+		NORTH, SOUTH, WEST, EST
+	}
+
+	public Boolean findAverage(boolean sum) {
+		return sum;
+	}
+
+	public Byte findAverage(byte sum) {
+		return sum;
+	}
+	
+	public Character findAverage(char sum) {
+		return sum;
+	}
+	
+	public Short findAverage(short sum) {
+		return sum;
+	}
+	
+	public Integer findAverage(int sum) {
+		return sum;
+	}
+	
+	public Long findAverage(long sum) {
+		return sum;
+	}
+		
+	public Float findAverage(float sum) {
+		return sum;
+	}
+	
+	public Double findAverage(double sum) {
+		return sum;
+	}
+
+	public static void main(String[] args) {
+		Calculations c = new Calculations();
+		System.out.println(c.findAverage((char) 36));
+		
+		char ch = 0b0010_0100;
+		System.out.println(ch);
+		
+		ch = 0x24;
+		System.out.println(ch);
+		
+		byte b = 100;
+		switch (b) {
+		case 100:
+			break;
+		case 20:
+			break;
+		}
+	}
+	
+}
+

src/it/oracle/associate/java8/test/ChooseWisely.java

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+package it.oracle.associate.java8.test;
+
+public class ChooseWisely {
+	public ChooseWisely() {	super(); }
+	public int choose(int choise) { return 5; }
+	public int choose(short choise) { return 2; }
+	public int choose(long choise) { return 11; }	
+	public static void main(String[] path) {
+		System.out.println(new ChooseWisely().choose((byte) 2+1));
+	}
+}

src/it/oracle/associate/java8/test/Drink.java

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+package it.oracle.associate.java8.test;
+
+public class Drink {
+
+	public static void water() {}
+	
+	public void get() {
+		Drink.water();
+	}
+}

src/it/oracle/associate/java8/test/Football.java

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+package it.oracle.associate.java8.test;
+
+public class Football {
+
+	public static Long getScore(Long timeRemaining) {
+		return 2 * timeRemaining; // m1
+	}
+	
+	public static void main(String[] refs) {
+		final int startTime = 4;
+		//System.out.println(getScore(startTime)); // m2
+	}
+}

src/it/oracle/associate/java8/test/Phone.java

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+package it.oracle.associate.java8.test;
+
+public class Phone {
+	private int size;
+	
+	public Phone(int size) {
+		this.size = size;
+	}
+	
+	public static void sendHome(Phone p, int newSize) {
+		p = new Phone(newSize);
+		p.size = 4;
+	}
+	
+	public static final void main(String... params) {
+		final Phone phone = new Phone(3);
+		sendHome(phone, 7);
+		System.out.println(phone.size);
+	}
+}

src/it/oracle/associate/java8/test/Puppy.java

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+package it.oracle.associate.java8.test;
+
+public class Puppy {
+	public static int wag = 5;
+	
+	public void Puppy(int wag) {
+		this.wag = wag;
+	}
+	
+	public static void main(String[] tail) {
+		//System.out.println(new Puppy(2).wag); // q3
+	}
+}

src/it/oracle/associate/java8/test/RainForest.java

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+package it.oracle.associate.java8.test;
+
+public class RainForest extends Forest {
+
+	public RainForest(long treeCount) {
+		//this.treeCount = treeCount + 1;
+		super(treeCount + 1);
+	}
+}
+
+class Forest {
+	public long treeCount;
+	
+	public Forest(long treeCount) {
+		this.treeCount = treeCount + 2;
+	}
+}

src/it/oracle/associate/java8/test/Tree.java

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+package it.oracle.associate.java8.test;
+
+public class Tree {
+	public final static long numberOfTrees;
+	public final double height;
+	
+	static {}
+	{
+		final int initHeight = 2;
+		height = initHeight;
+	}
+	
+	static {
+		numberOfTrees = 100;
+		//height = 4;
+	}
+}

src/it/oracle/associate/java8/test/Week.java

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+package it.oracle.associate.java8.test;
+
+public class Week {
+	//private static final String monday;
+	String tuesday;
+	//final static wednesday = 3;
+	final protected int thursday = 4;
+}