import java.awt.*;
import java.awt.geom.*;
import java.awt.event.*;
public class Punktiir1 extends Frame{
 public static double x1,y1,x2,y2,dx,dy,ko1,ko2,ko3,ko4;
 public static int nr;
 public Punktiir1(){
    setTitle("Vajuta hiirega!");
    setSize(500, 500);
    setLocation(300, 100);
    setCursor(new Cursor(Cursor.CROSSHAIR_CURSOR));
    addWindowListener(new WindowAdapter(){
    public void windowClosing(WindowEvent e){
         System.exit(0);
     }
    });
    addMouseListener(new HiireKuular());
    setVisible(true);
 }
 class HiireKuular extends MouseAdapter{
  public void mousePressed(MouseEvent e){
    nr=nr+1;
     Graphics agr=Punktiir1.this.getGraphics();
     Graphics2D g=(Graphics2D)agr;
  	if(nr==1){
		x1=e.getX();
      y1=e.getY();}
   else{
	
		x2=e.getX();
		y2=e.getY();         
         
         
         
  //JOONTE ALGUS
    dy=(y1-y2);
    dx=x1-x2;
    ko1=Math.abs(dx/dy);
    ko2=((dx)/(0.1+ko1));
    ko3=dy/ko2;
 	//VASAKULT PAREMALE
	if(x1<x2){
	double j=y1;
		for(double i=x1;i<x2;i++){
			i=(i-0.9)+ko1;		
			g.draw(new Line2D.Double(i,j,i+1,j+1));
		  	j=j+ko3;
   	}
   }
   //PAREMALT VASAKULE
   if(x1>x2){
   double j=y1;
   	for(double i=x1;i>x2;i--){
	   	i=(i+0.9)-ko1;		
	    	g.draw(new Line2D.Double(i,j,i-1,j-1));
  		  	j=j-ko3;
   	}
   }

      
      
    //JOONTE LÕPP
    nr=0;
  }//NR else lõpp

    
  }//pressi lõpp
 }
 public static void main(String argumendid[]){
    new Punktiir1();
  }
}