import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
import java.lang.*;
import java.io.*;
import java.net.*;
import java.util.*;

public class tahvel extends Applet implements MouseListener, MouseMotionListener{

  int hax, hay;
  int hax2, hay2;
  int uusx, uusy;
  int uusx2, uusy2;
  Socket sc;

  Graphics2D piltg;
  
//siit algab konstruktor
 public tahvel(){
    addMouseListener(this);
    addMouseMotionListener(this);
    try{
    sc=new Socket("teach1", 3001);
    new kuulaja();
    } catch(Exception viga){
      viga.printStackTrace();	
    }
 }

    public void mousePressed(MouseEvent e){
    	hax=e.getX();
    	hay=e.getY();
    }

    public void mouseDragged(MouseEvent e){
    	uusx=e.getX();
    	uusy=e.getY();
    	try{
    	PrintWriter valja=new PrintWriter(sc.getOutputStream(), true);
    	valja.println(hax+" "+hay+" "+uusx+" "+uusy);
    	}catch(Exception viga){}
    	hax=uusx;
    	hay=uusy;
    }

//kuulaja algab
class kuulaja extends Thread{

   public kuulaja(){
     start();
   } 
   
   public void run(){
     try{
       BufferedReader sisse=new BufferedReader(
         new InputStreamReader(sc.getInputStream())
       );
       String lause=sisse.readLine();
       while(lause!=null){
       	StringTokenizer tuhik=new StringTokenizer(lause, " ");
      		String sona=tuhik.nextToken();
       		hax2=Integer.parseInt(sona);
       		sona=tuhik.nextToken();
       		hay2=Integer.parseInt(sona);
       		sona=tuhik.nextToken();
       		uusx2=Integer.parseInt(sona);
       		sona=tuhik.nextToken();
       		uusy2=Integer.parseInt(sona);
       	piltg=(Graphics2D)getGraphics();
       	piltg.setColor(Color.black);
       	System.out.println(hax2+" "+hay2+" "+uusx2+" "+uusy2);
		piltg.drawLine(hax2, hay2, uusx2, uusy2);
		lause=sisse.readLine();
       	}       
     }catch(Exception e){
     	e.printStackTrace();
     }
   }
}
  
	public void mouseReleased(MouseEvent e){}
	public void mouseClicked(MouseEvent e){}
	public void mouseEntered(MouseEvent e){}
	public void mouseExited(MouseEvent e){}
	public void mouseMoved(MouseEvent e){}
  
  public static void main(String argumendid[]){
    Frame f=new Frame("tahvel");
    f.setSize(600, 600);
    f.add(new tahvel());
    f.setVisible(true);
    f.addWindowListener(
    	new WindowAdapter(){
        	public void windowClosing(WindowEvent e){
          		System.exit(0);
        	}
      	}
    );
  }
 
}