Java File Extension Name Extract extractFileExtension(String fileName)

Description

extract File Extension

License

Open Source License

Declaration

public static String extractFileExtension(String fileName) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

public class Main {
    public static String extractFileExtension(String fileName) {
        if (null == fileName || "".equals(fileName.trim())) {
            throw new IllegalArgumentException("File Name cannot be Null/Empty");
        }/*www  .  j  a  v a 2  s  .  c om*/
        int extensionStartPt = fileName.lastIndexOf(".");
        return fileName.substring(extensionStartPt + 1);
    }
}

Related

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