Java tutorial
public class MainClass { public static void main(String args[]) { Object test = null; System.out.printf("%b\n", false); System.out.printf("%b\n", true); System.out.printf("%b\n", "Test"); System.out.printf("%B\n", test); System.out.printf("Hashcode of \"hello\" is %h\n", "hello"); System.out.printf("Hashcode of \"Hello\" is %h\n", "Hello"); System.out.printf("Hashcode of null is %H\n", test); System.out.printf("Printing a %% in a format string\n"); System.out.printf("Printing a new line %nnext line starts here"); } }