Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;

public class Main {
    public static void main(String[] args) throws Exception {
        byte[] ary = new byte[128];
        DatagramPacket pack = new DatagramPacket(ary, 128);

        // read
        DatagramSocket sock = new DatagramSocket(1111);
        sock.receive(pack);
        String word = new String(pack.getData());
        System.out.println("From: " + pack.getAddress() + " Port: " + pack.getPort());
        System.out.println(word);
        sock.close();
        // write
        sock = new DatagramSocket();
        pack.setAddress(InetAddress.getByName(args[1]));
        pack.setData(args[2].getBytes());
        pack.setPort(1111);
        sock.send(pack);
        sock.close();

    }
}