Java String Pad Zero zeroPad(String s, int len)

Description

=====================================================================================
This method is used to add padding "0" before a string so that the string has the expected length.

License

Open Source License

Parameter

Parameter	Description
s	String that need to be padded with zero ahead "0"

Return

A zero "0" padding string

Declaration

public static String zeroPad(String s, int len)

Method Source Code

//package com.java2s;
//License from project: Open Source License 

public class Main {
    /**//from  w w w. j  a  v  a2  s . c o m
     * =====================================================================================<br>
     * This method is used to add padding "0" before a string so that the string has the expected
     * length.
     * 
     * @param s
     *            String that need to be padded with zero ahead "0"
     *            
     * @return A zero "0" padding string
     */
    public static String zeroPad(String s, int len) {
        String result = s;
        for (int i = s.length(); i < len; i++)
            result = "0".concat(result);

        return result;
    }
}