Java File Extension Name Extract getFileExtension(File file)

Description

get File Extension

License

Open Source License

Declaration

public static String getFileExtension(File file) 

Method Source Code

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

import java.io.*;

public class Main {
    public static String getFileExtension(File file) {
        String name = file.getName();
        int idx = name.lastIndexOf('.');
        if (!file.isDirectory() && idx != -1) {
            return name.substring(idx + 1, name.length()).toLowerCase();
        }/*from w ww.j ava2s .co m*/
        return "";
    }

    public static String getName(String path) {
        int index = path.lastIndexOf(File.separatorChar);
        if (index < 0) {
            return path;
        }
        return path.substring(index + 1);
    }
}

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