GreetingServer.java

package com.godoro.samples.net;
import java.net.*;
import java.io.*;
import java.util.*;

public class GreetingServer {

  private int port;
  private ServerSocket serverSocket;
  
  public GreetingServer(int port)
     throws Exception
  {
    this.port=port;
  }
  public void execute()
    throws Exception
  {
    serverSocket=new ServerSocket(port);    
    while(true){
      System.out.println("Listening "+port);
      Socket socket=serverSocket.accept();
      System.out.println("A client connected.");
      
      InputStream in=socket.getInputStream();
      InputStreamReader reader=new InputStreamReader(in); 
      BufferedReader input = new BufferedReader(reader);

      OutputStream out=socket.getOutputStream();
      OutputStreamWriter writer=new OutputStreamWriter(out);
      BufferedWriter output = new BufferedWriter(writer);        

      String message = input.readLine();
      System.out.println("Client message : " + message);
      output.write("Hi Client! \n");
      output.flush();
      
    }
  }
        
  public static void main(String[] args)
    throws Exception
  {
    GreetingServer server=new GreetingServer(5555);
    server.execute();
  }
  
}