Java: Left pad a string with zeros

Following snippet left pad given string with zeros.

String.format("%" + n + "s", str).replace(' ', '0');

App.java

package com.sample.app;

public class App {

 private static String leftPad(String str, int n) {
  return String.format("%" + n + "s", str).replace(' ', '0');
 }

 public static void main(String[] args) {
  String paddedString = leftPad("hello", 16);

  System.out.println(paddedString);

 }

}

Output

00000000000hello

You may like

Miscellaneous

Interview Questions

Programming Questions

How to get the content type of a list?

Convert Eclipse java project to maven project

Eclipse: Enable break point when exception thrown

Pad string with stars

Pad 0’s to binary representation of integer