Java tutorial
public class PrintfExamples { public static void main(String[] args) { System.out.printf("1.0 5f num is %5f\n", 1.0); System.out.printf("1.0 4f num is %4f\n", 1.0); } } /* 1.0 5f num is 1.000000 1.0 4f num is 1.000000 */