Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import java.util.regex.Pattern;

public class Main {
    public static boolean isValidIPv4(String ipString) {
        Pattern p = Pattern.compile("^(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)(\\.(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)){3}$");
        return p.matcher(ipString).matches();
    }
}