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

public class MultiUser extends Thread{
	private Socket client;
	
	public MultiUser(Socket c){
		this.client=c;
	}
	
	public void run(){
		try{			
			BufferedReader in=new BufferedReader(new InputStreamReader(client.getInputStream()));
			PrintWriter out=new PrintWriter(client.getOutputStream());
				//Mutil User but can't parallel
				while(true){
					String str=in.readLine();
					System.out.println(str);
					out.println("has receive....");
					out.flush();
					if(str.equals("end"))
						break;
				}
			client.close();		
			}catch(IOException ex){
			}finally{
				
			}
	}
	
	public static void main(String[] args)throws IOException{
		ServerSocket server=new ServerSocket(5678);
		while(true){
			//transfer location change Single User or Multi User
			MultiUser mu=new MultiUser(server.accept());
			mu.start();
		}
	}
}