Java File Extension Name Extract extractFileExtension(String fileName)

Description

extract File Extension

License

Open Source License

Declaration

private static String extractFileExtension(String fileName) 

Method Source Code

//package com.java2s;
/**//from   w  w w  .  ja v a2s.c  o  m
 * File-Rename-Tool is a simple tool for renaming significant number of files.
 * Copyright (C) 2010  Meisam Fathi Salmi <meisam.fathi[at]gmail.com>
 * 
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */

public class Main {
    private static final String FileExtensionSeperator = ".";

    private static String extractFileExtension(String fileName) {
        int extensionIndex = fileName.lastIndexOf(FileExtensionSeperator);
        if (extensionIndex == -1) {
            return "";
        } else {
            return fileName.substring(extensionIndex, fileName.length());
        }
    }
}

Related

1. extractFileExt(String filePath)
2. ExtractFileExtension(String file_name)
3. extractFileExtension(String filename)
4. extractFileExtension(String fileName)
5. extractFileExtension(String filename)
6. extractFileExtension(String filename)
7. extractFileExtension(String filename)
8. extractFileExtension(String filePath)
9. extractFileExtension(String path)