Replacing Strings ignoring Case - Java java.lang

Java examples for java.lang:String Case

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Description

Replacing Strings ignoring Case

Demo Code

/*// w  w  w.  j  av  a 2s .  c o  m
 * CapturePlugin by Andreas Hessel (Vidrec@gmx.de), Bodo Tasche
 * 
 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * CVS information:
 *  $RCSfile$
 *   $Source$
 *     $Date: 2009-09-04 11:15:55 +0200 (Fr, 04 Sep 2009) $
 *   $Author: bananeweizen $
 * $Revision: 5953 $
 */
//package com.java2s;

public class Main {
    public static void main(String[] argv) throws Exception {
        String inhere = "java2s.com";
        String thisone = "java2s.com";
        String withthis = "java2s.com";
        System.out.println(replaceIgnoreCase(inhere, thisone, withthis));
    }

    /**
     * Replacing Strings ignoring Case
     * @param inhere Replace in here
     * @param thisone Replace this
     * @param withthis Replace with this
     * @return result
     */
    public static String replaceIgnoreCase(String inhere, String thisone,
            String withthis) {
        if (inhere == null) {
            return null;
        } else if (thisone == null) {
            return inhere;
        } else if (withthis == null) {
            withthis = "";
        }

        StringBuilder result = new StringBuilder();
        int pos = 0;

        while ((pos = inhere.toLowerCase().indexOf(thisone.toLowerCase())) > 0) {
            result.append(inhere.substring(0, pos));
            result.append(withthis);
            inhere = inhere.substring(pos + thisone.length());
        }

        result.append(inhere);

        return result.toString();
    }
}

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