Java File Extension Name Get GetFileExtension(String fname)

Description

Get File Extension

License

Open Source License

Declaration

public static String GetFileExtension(String fname) 

Method Source Code

//package com.java2s;
/*/*www. j av  a2  s .com*/
 * Course Generator
 * Copyright (C) 2016 Pierre Delore
 *
 * 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/>.
 */

import java.io.File;

public class Main {
    public static String GetFileExtension(String fname) {
        // String name = file.getName();
        /*
         * try { return fname.substring(fname.lastIndexOf(".") + 1); } catch
         * (Exception e) { return ""; }
         */
        for (int i = fname.length() - 1; i >= 0; i--) {
            if ((fname.charAt(i) == '.') && (i != fname.length() - 1)) {
                return fname.substring(i + 1);
            }
            if (fname.charAt(i) == File.separatorChar) {
                return "";
            }
        }
        return "";
    }
}

Related

1. getFileExtension(String fileName)
2. getFileExtension(String fileName)
3. getFileExtension(String filePath)
4. getFileExtension(String filePath)
5. getFileExtension(String filePath)
6. getFileExtension(String name)
7. GetFileExtension(String path)