Java File Extension Name Get getFileExtension(String filePath)

Description

Returns the file extension of file {Category} FileUtil {param} string(filePath) fullPath: String.

License

Apache License

Declaration

public static String getFileExtension(String filePath) 

Method Source Code

//package com.java2s;
/**/*from ww w .jav a  2 s  . c  o m*/
 * Copyright 2017 Jan Lolling jan.lolling@cimt-ag.de
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.io.File;

public class Main {
    /**
     * Returns the file extension of file
     * 
     * {Category} FileUtil
     * 
     * {param} string(filePath) fullPath: String.
     * 
     * {example} getFileExtension(filePath) # ""
     */
    public static String getFileExtension(String filePath) {
        File f = new File(filePath);
        String name = f.getName();
        int pos = name.lastIndexOf('.');
        if (pos >= 0 && pos < name.length() - 1) {
            return name.substring(pos + 1);
        } else {
            return "";
        }
    }
}

Related

1. getFileExtension(String fileName)
2. getFileExtension(String filename)
3. getFileExtension(String fileName)
4. getFileExtension(String fileName)
5. getFileExtension(String fileName)
6. getFileExtension(String filePath)
7. getFileExtension(String filePath)
8. GetFileExtension(String fname)
9. getFileExtension(String name)