public class BooleanTest {

  public static void main(String[] args) {
    boolean x = false ;
    boolean y = true ;
    boolean z = x || y ;
    System.out.println ("give x = false, y = true and z = x || y then");
    System.out.println ("!x = " + !x);
    System.out.println ("x && y = " + (x && y));
    System.out.println ("z = " + z);
  }
}