package lezione04;

public class Slide28 {

	public static void main(String[] args) {
		/* provate a cambiare i valri delle variabili
		 * per sperimentare quali "rami" dei vari if
		 * il programma percorre
		 */
		int x = 0;
		int y = 2;
		int z = 1;
		if (x == y) {
			System.out.println("1) x is equal to y");
		} else {
			System.out.println("1) x is NOT equal to y");
		}
		// blocco 2), equivalente al blocco 3)
		if (x == y) {
			if (x == z) {
				System.out.println("2) x, y, and z are all equals");
			} else {
				System.out.println("2) x and y are equals but z is not");
			}
		} else {
			if (x == z) {
				System.out.println("2) x and z are equals but y is not");
			} else {
				if (y == z) {
					System.out.println("2) y and z are equals but x is not");
				} else {
					System.out.println("2) x, y, and z are all different");
				}
			}
		}
		// blocco 3), equivalente al blocco 2)
		if (x == y && x == z) {
			System.out.println("3) x, y, and z are all equals");
		} else if (x == y && x != z) {
			System.out.println("3) x and y are equals but z is not");
			/* Notate l'istruzione sotto: scrivere
			 * if () {
			 *    ...
			 * } else {
			 *    if () {
			 *       ...
			 *    }
			 * }
			 * equivale a scrivere
			 * if () {
			 *    ...
			 * } else if () {
			 *       ...
			 *    }
			 * }
			 */
		} else if (x != y && x == z) {
			System.out.println("3) x and z are equals but y is not");
		} else if (y == z){
			System.out.println("3) y and z are equals but x is not");
		} else {
			System.out.println("3) x, y, and z are all different");
		}
	}

}