Client code

gistfile1.java

package com.skalar;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;

public class Client {
	public Client(String host, int port) {
		this.port = port;
		hostname = host;
	}
	
	public void connect() {
		try {
			fromServer = new Socket(hostname,3000);
			in  = new
		    		BufferedReader(new 
		    				InputStreamReader(fromServer.getInputStream()));
			
			out = new 
		    		PrintWriter(fromServer.getOutputStream(),true);
		    
		    inu = new 
		    		BufferedReader(new InputStreamReader(System.in));
		} catch (IOException exc) {
			exc.printStackTrace();
		}		
	}
	
	public void startCalculation() {
		String fuser,fserver;
		
	    try {
		    while ((fuser = inu.readLine())!=null) {
		    	out.println(fuser);
		    	fserver = in.readLine();
		    	System.out.println(fserver);
		    	if (fuser.equalsIgnoreCase("close")) {
		    		break;
		    	}
		    	
		    	if (fuser.equalsIgnoreCase("exit")) {
		    		break;
		    	}
		    }
		
		    out.close();
		    in.close();
		    inu.close();
		    fromServer.close();
	    } catch (IOException exc) {
	    	exc.printStackTrace();
	    }		
	}
	
	public static void main(String[] args) {
		Client client = new Client("localhost", 3000);
		client.connect();
		client.startCalculation();
	}
	
	private Socket fromServer;
	private String hostname;
	private int port;
	
	private BufferedReader in;
	private PrintWriter out;
	private BufferedReader inu;
}