Java File Extension Name Get getFileExtension(String fileName)

Description

get File Extension

License

Apache License

Declaration

public static String getFileExtension(String fileName) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.io.*;

public class Main {
    public static final char EXTENSION_SEPARATOR = '.';

    public static String getFileExtension(String fileName) {
        String ext = null;//  w ww . j a  va 2s. co  m
        int k = fileName.lastIndexOf(EXTENSION_SEPARATOR); // NOI18N
        if (k != -1) {
            ext = fileName.substring(k + 1, fileName.length());
        }
        return ext;
    }

    public static String getFileExtension(File file) {
        return getFileExtension(file.getName());
    }
}

Related

1. getFileExtension(final String fullName)
2. getFileExtension(String file)
3. getFileExtension(String filename)
4. getFileExtension(String fileName)
5. getFileExtension(String filename)
6. getFileExtension(String fileName)
7. getFileExtension(String fileName)
8. getFileExtension(String filePath)
9. getFileExtension(String filePath)