Java/com/study/demo8/UDPReceiver.java

package com.study.demo8;

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

public class UDPReceiver {
    public static void main(String[] args) {
        try {
            DatagramSocket socket = new DatagramSocket(9999);
            System.out.println("Receiver started, waiting for data...");

            byte[] buffer = new byte[1024];
            DatagramPacket packet = new DatagramPacket(buffer, buffer.length);

            socket.receive(packet);

            String message = new String(packet.getData(), 0, packet.getLength());
            System.out.println("Received from sender: " + message);

            socket.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}