Write a java program to check the IP Is V4 or V6

 Programs to check is ipv4 or ipv6

import java.net.*;
public class CheckIpv4OrIpv6{
    public static void main(String[] args) throws UnknownHostException{
        InetAddress addr = InetAddress.getByName("www.htmlspacecode.com");
        checkIp(addr);
    }
    public static void checkIp(InetAddress adr){
        byte[] address = adr.getAddress();
        if(address.length == 4) {
            System.out.println("IP V4");
        }else if(address.length == 16){
            System.out.println("IP V6");
        }else{
            System.out.println("Unknown");
        }
    }
}