See Java tutorial Formatting Numeric Print Output.
You may also use String.format
, the code might look like this:
String s1 = String.format("'%05d'\n", 22);
TestFormat.java
import java.util.Calendar; import java.util.Locale; public class TestFormat { public static void main(String[] args) { long n = 461012; System.out.format("%d%n", n); // --> "461012" System.out.format("%08d%n", n); // --> "00461012" System.out.format("%+8d%n", n); // --> " +461012" System.out.format("%,8d%n", n); // --> " 461,012" System.out.format("%+,8d%n%n", n); // --> "+461,012" double pi = Math.PI; System.out.format("%f%n", pi); // --> "3.141593" System.out.format("%.3f%n", pi); // --> "3.142" System.out.format("%10.3f%n", pi); // --> " 3.142" System.out.format("%-10.3f%n", pi); // --> "3.142" System.out.format(Locale.FRANCE, "%-10.4f%n%n", pi); // --> "3,1416" Calendar c = Calendar.getInstance(); System.out.format("%tB %te, %tY%n", c, c, c); // --> "May 29, 2006" System.out.format("%tl:%tM %tp%n", c, c, c); // --> "2:34 am" System.out.format("%tD%n", c); // --> "05/29/06" } }
461012 00461012 +461012 461,012 +461,012 3.141593 3.142 3.142 3.142 3,1416 September 9, 2013 8:06 pm 09/09/13
Maintained by John Loomis, updated Mon Sep 09 20:06:57 2013