Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

public class Main {

    public static String getFileExt(String fileName) {
        String[] arr = fileName.split("\\.");
        if (arr.length <= 1) {
            return "";
        } else {
            return arr[arr.length - 1].toLowerCase();
        }
    }
}