Client.java

// Client

import java.net.*;
import java.io.*;

public class Client
{
    public static void main(String args[])
    {
        byte buffer[] = new byte[100];
        int serverPort = 69;
        try
        {
            InetAddress serverAddress = InetAddress.getLocalHost();
            Socket socket = new Socket(serverAddress,serverPort);
            
            InputStream in = socket.getInputStream();
            int nbr = in.read(buffer,0,buffer.length);
            if(nbr > 0)
                System.out.println(new String(buffer,0,nbr));
            else
                System.out.println("No message received");
            socket.close();
        }
        catch(Exception e)
        {
            System.out.println(e.toString());
        }
    }
}

Server.java

// Server

import java.net.*;
import java.io.*;
import java.util.*;

public class Server 
{
    public static void main(String args[])
    {
        int serverPort = 69;
        
        try
        {
            ServerSocket server = new ServerSocket(serverPort);
            while(true)
            {
                Socket serverSocket = server.accept();
                OutputStream replySocket = serverSocket.getOutputStream();
                Date date = new Date();
                String s = date.toString();
                replySocket.write(s.getBytes(), 0, s.length());
                serverSocket.close();
            }
        }
        catch(Exception e)
        {
            System.out.println(e.toString());
        }
    }
}