Java String Pad Left leftPad(String s, int len, char c)

Description

Returns a string of length len left-padded with characters c.

License

Open Source License

Declaration

public static String leftPad(String s, int len, char c) 

Method Source Code

//package com.java2s;
/*/*from w ww.  j  ava 2s  .  c om*/
 * USE - UML based specification environment
 * Copyright (C) 1999-2004 Mark Richters, University of Bremen
 *
 * This program 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 2 of the
 * License, or (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  
 */

public class Main {
    /**
     * Returns a string of length len left-padded with characters
     * c. If the length of the passed string is greater or equal len
     * the string is returned unmodified.  
     */
    public static String leftPad(String s, int len, char c) {
        int slen = s.length();
        if (slen >= len)
            return s;
        else {
            char[] pad = new char[len - slen];
            for (int i = len - slen - 1; i >= 0; i--)
                pad[i] = c;
            return new String(pad) + s;
        }
    }

    /**
     * Returns a string of length len left-padded with blanks. If the
     * length of the passed string is greater or equal len the string
     * is returned unmodified.  
     */
    public static String leftPad(String s, int len) {
        return leftPad(s, len, ' ');
    }
}

Related

1. leftPad(String input, int length, char pad)
2. leftPad(String inStr, int length, char paddingChar)
3. leftPad(String original, int length, char padChar)
4. leftPad(String s, char paddingCharacter, int length)
5. leftPad(String s, int l)
6. leftPad(String s, int length)
7. leftPad(String s, int length)
8. leftPad(String s, int minLength)
9. leftPad(String s, int n)