trim But Keep Line Feeds - Java java.lang

Java examples for java.lang:String Trim

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Description

trim But Keep Line Feeds

Demo Code

/*/*from w  w  w.j a v  a 2 s . co  m*/
  You may freely copy, distribute, modify and use this class as long
  as the original author attribution remains intact.  See message
  below.

  Copyright (C) 2004 Christian Pesch. All Rights Reserved.
 */
//package com.java2s;

public class Main {
    public static void main(String[] argv) {
        String string = "java2s.com";
        System.out.println(trimButKeepLineFeeds(string));
    }

    public static String trimButKeepLineFeeds(String string) {
        if (string == null)
            return null;
        StringBuffer buffer = new StringBuffer(string);
        for (int i = 0; i < buffer.length(); i++) {
            char c = buffer.charAt(i);
            if (Character.isWhitespace(c) && c != '\r' && c != '\n')
                buffer.setCharAt(i, ' ');
        }
        return buffer.toString().trim();
    }

    public static String trim(String string) {
        if (string == null)
            return null;
        StringBuffer buffer = new StringBuffer(string);
        for (int i = 0; i < buffer.length(); i++) {
            char c = buffer.charAt(i);
            if (Character.isWhitespace(c))
                buffer.setCharAt(i, ' ');
        }
        return buffer.toString().trim();
    }
}

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