Java File Extension Name Get extractExtension(String name)

Description

extract Extension

License

Open Source License

Declaration

public static String extractExtension(String name) 

Method Source Code

//package com.java2s;
/*//from w w  w .  ja v  a2 s.c  o m
 * Copyright (c) 2008 Dennis Thrys?e
 *
 * 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
 */

public class Main {
    public static String extractExtension(String name) {
        if (name == null)
            return null;
        int dot = name.lastIndexOf('.');

        if (dot > -1 && dot < name.length() - 1)
            return name.substring(dot + 1, name.length());
        else
            return null;
    }
}

Related

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