Why is my server not responding?

[phpuser123]

Here's a little script I just implemented with ref to internet ..i run my server and then my client..
On my client side i input some string into my client side I am su[pposed to get a hello back from the server...This part is not working ..

import java.net.*;
import java.io.*;
public class lab1_Qu2 {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		try{
			System.out.println("chat started........");
			chat cht=new chat();
			cht.create_socket("localhost",135);
			System.out.println("chat Ended........");
		}
		
		catch(IOException e){
			System.err.println(e.getMessage());
		}
		
	}
	
	

}


class chat{
	
	//method to create socket
public void create_socket(String host,int port_num) throws IOException {
		
	PrintWriter pW=null;
		Socket  hello_sck=new Socket(host,port_num);
		send_hello("Hello",hello_sck,pW);
		hello_sck.close();
		
		
	}

	//Method to send Hello text
	public void send_hello(String str,Socket echoSocket,PrintWriter pW){
		try
			{	
			
			pW = new PrintWriter(echoSocket.getOutputStream(), true);
				create_stream(echoSocket);
				pW.print(str);
			}
		catch(IOException e)
			{
				System.err.println(e.getMessage());
			}
	}
	
	
	//method to create stream
	public void create_stream(Socket echoSocket) throws IOException{
		BufferedReader in
		= new BufferedReader(
		new InputStreamReader(
		echoSocket.getInputStream()));
		PrintWriter out = new PrintWriter(echoSocket.getOutputStream(), true);
		out.flush();
		System.out.println("Socket input started..1");
		while (true) {
			System.out.println("Socket input started..2");
			String str = in.readLine();
			if (str == "exit") {
				System.out.println("Socket input started..3");
			break;
			} else {
				System.out.println("Socket input started..4");
			System.out.println(str);
			}
			}
		System.out.println("Socket input started..5");
			
	}
}








import java.net.*;
import java.io.*;
public class lab1_Qu2_server {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		lab1_Qu2_server server_app1=new lab1_Qu2_server();
		server_app1.chat_server();
	}
	
	public ServerSocket create_server(int port)throws IOException {
		return new ServerSocket(port);
	}
	
	public Socket create_client(ServerSocket s) throws IOException{
		return s.accept();
	}
	
	public void create_stream(Socket clientSocket) throws IOException{
		PrintWriter out = new PrintWriter(clientSocket.getOutputStream(), true);
        BufferedReader in = new BufferedReader(
				new InputStreamReader(
				clientSocket.getInputStream()));
        
        send_hello("Hello back",out);
        out.flush();
        
	}
	
  private void send_hello(String str,PrintWriter p){
	  p.println(str);
	  
  }
  
  public void chat_server(){
	  try
	  		{
		  		ServerSocket server=create_server(3003);
		  		Socket client=create_client(server);
		  		create_stream(client);
		  		
		  		
	  		}
	  catch(IOException e)
	  		{
		  		System.err.println(e.getMessage());
	  		}
	  
  }

}

These are my server and client side codes.Just go through them and tell me what's wrong...

With regards

[Oralloy]

I can't say much because of teh quick look I took, but it looks like your port numbers don't match up. 135 != 3003.

Also, note that ports under 1024 are reserved for system use. Although, if you're running as admin or root, you might not care. On the other hand, you might, if you collide with a running service.

Cheers.