Java String Pad Left leftPad(String value, int makeLength, char paddingCharacter)

Description

left Pad

License

Apache License

Declaration

public static String leftPad(String value, int makeLength, char paddingCharacter) 

Method Source Code

//package com.java2s;
/**//w  ww.  j av  a2  s  .  c  o m
 * Copyright 2008-2009 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at:
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is
 * distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and limitations under the License. 
 */

public class Main {
    public static String leftPad(String value, int makeLength, char paddingCharacter) {
        if (makeLength <= 0) {
            throw new IllegalArgumentException("Pad length MUST be over zero");
        }
        StringBuffer buffer = new StringBuffer();
        buffer.append(buildString(paddingCharacter, makeLength - value.length()));
        buffer.append(value);
        return buffer.toString();
    }

    private static String buildString(char character, int count) {
        StringBuffer buffer = new StringBuffer();
        for (int i = 0; i < count; i++) {
            buffer.append(character);
        }
        return buffer.toString();
    }
}

Related

1. leftPad(String strInput, int intLength)
2. leftPad(String targetStr, char appendChar, int length)
3. leftPad(String text, int length, char padChar)
4. leftPad(String text, int size)
5. leftPad(String toPad, int numPads)
6. leftPad(String value, int size, String pad)
7. leftPad(StringBuilder pStringBuilder, int pLength, char pChar)
8. leftPadByteArray(byte[] source, int size)
9. leftPadded(String src, int len)