Java tutorial
public class PrintfExamples { public static void main(String[] args) { System.out.printf("num is %03f\n", 3.14159265); System.out.printf("num is {%07.3f}\n", 3.14); System.out.printf("06.3 num is %06.3f\n", 3.14159265); System.out.printf(".3 num is %.3f\n", 3.14159265); System.out.printf("9.99 num is %4.2f\n", 9.999999999); } } /* num is 3.141593 num is {003.140} 06.3 num is 03.142 .3 num is 3.142 9.99 num is 10.00 */