server.java

// File Name GreetingServer.java

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

public class Server
{
	public static Socket socket;
	public static void main(String[] args){
		
		try {
			ServerSocket serverSocket = new ServerSocket(9000);
			  
			System.out.println("Running....");
			while (true) {
				socket = serverSocket.accept();
				System.out.println("Connected....");
				InputStreamReader inputStreamReader = new InputStreamReader(socket.getInputStream());
				BufferedReader messageString = new BufferedReader(inputStreamReader);
				String message = messageString.readLine();
				System.out.println("client message is " + message);
				
				//sending message to client
				OutputStreamWriter osw = new OutputStreamWriter(socket.getOutputStream());
				BufferedWriter bos = new BufferedWriter(osw);
				bos.write("Hi Client\n");
				bos.flush();
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
		finally{
			try {
				socket.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
		
	}
}