Java File Extension Name Get fileExt(String name)

Description

Return filename extension.

License

GNU General Public License

Declaration

public static String fileExt(String name) 

Method Source Code

//package com.java2s;
/*/*from w ww .ja va 2 s  .  com*/
 * Copyright (C) 2015  University of Oregon
 *
 * You may distribute under the terms of either the GNU General Public
 * License or the Apache License, as specified in the LICENSE file.
 *
 * For more information, see the LICENSE file.
 */

public class Main {
    /** Return filename extension. */
    //----------------------------------------------------------------
    public static String fileExt(String name) {
        String ext = null;
        String fname = pathName(name);
        int index = fname.indexOf(".");
        if (index > 0)
            ext = fname.substring(index, fname.length());
        return ext;
    }

    /** Return the last directory or filenname in a path. */
    //----------------------------------------------------------------
    public static String pathName(String path) {
        int i = path.lastIndexOf("/");
        int j = path.lastIndexOf("\\");
        int k = i > j ? i : j;
        if (k < 0)
            return path;
        return path.substring(k + 1, path.length());
    }
}

Related

1. extractExtension(String name)
2. extractExtension(String s)
3. extractExtension(String strFilename)
4. extractExtension(String url)
5. extractExtensions(String fileName)
6. fileExt(String url)
7. fileExtension(CharSequence path)
8. fileExtension(String filename)
9. fileExtension(String path)