Java Integer Pad Zero zeroPad(int i, int len)

Description

Zero Pad an int

License

Open Source License

Parameter

Parameter	Description
i	The number to pad
len	The length required

Return

The padded number

Declaration

public static String zeroPad(int i, int len) 

Method Source Code

//package com.java2s;
/*/*w w w. jav  a  2s .c  om*/
 *  This file is part of the Alchemy project - http://al.chemy.org
 * 
 *  Copyright (c) 2007-2010 Karl D.D. Willis
 * 
 *  Alchemy is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 * 
 *  Alchemy is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 * 
 *  You should have received a copy of the GNU General Public License
 *  along with Alchemy.  If not, see <http://www.gnu.org/licenses/>.
 * 
 */

public class Main {
    /** Zero Pad an int 
     * 
     * @param i     The number to pad
     * @param len   The length required
     * @return      The padded number
     */
    public static String zeroPad(int i, int len) {
        // converts integer to left-zero padded string, len chars long.
        String s = Integer.toString(i);
        if (s.length() > len) {
            return s.substring(0, len);
            // pad on left with zeros
        } else if (s.length() < len) {
            return "000000000000000000000000000".substring(0,
                    len - s.length())
                    + s;
        } else {
            return s;
        }
    }
}

Related

1. zeroPad(final byte[] data, final int blockSize)
2. zeroPad(final int amount, final String in)
3. zeroPad(final int length, final byte[] bytes)
4. zeropad(final int num, final int size)
5. zeroPad(int n, int base, int width)
6. zeroPad(int n, int len)
7. zeroPad(int number, int places)
8. ZeroPad(int number, int width)