Java File Extension Name Get extractExtension(String s)

Description

does not include the dot.

License

Open Source License

Declaration

public static String extractExtension(String s) 

Method Source Code

//package com.java2s;
/*/*w w  w. java  2s.  c  o m*/
 * Copyright (C) 2009, Edmundo Albuquerque de Souza e Silva.
 *
 * This file may be distributed under the terms of the Q Public License
 * as defined by Trolltech AS of Norway and appearing in the file
 * LICENSE.QPL included in the packaging of this file.
 *
 * THIS FILE IS PROVIDED AS IS WITH NO WARRANTY OF ANY KIND, INCLUDING
 * THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL,
 * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
 * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 */

public class Main {
    /**
     * does not include the dot.
     * s can be filename + ext or full path.
     * 
     */
    public static String extractExtension(String s) {
        int index = s.lastIndexOf(".");
        if (index < 0)
            return "";
        return s.substring(index + 1, s.length());
    }
}

Related

1. extractExtension(final String fileName)
2. extractExtension(String fileName)
3. extractExtension(String name)
4. extractExtension(String strFilename)
5. extractExtension(String url)
6. extractExtensions(String fileName)
7. fileExt(String name)