Java tutorial
public class Main { public static void main(String[] args) { Boolean b1 = new Boolean(true); Boolean b2 = new Boolean(false); int i1 = b1.hashCode(); int i2 = b2.hashCode(); System.out.println("Hash code of " + b1 + " is " + i1); System.out.println("Hash code of " + b2 + " is " + i2); } }