java problem again

[Morgan]

Hi again!
Now my program is working but I have problem whit
Print out. How can I  solve this problem.

class myOverLoad{
      int x1=0;
      int y1=0;
      int x2=0;
      int y2=0;	

  myOverLoad buildRect(int x1, int y1, int x2, int y2){
      this.x1=x1;
      this.y1=y1;
      this.x2=x2;
      this.y2=y2;
      return this;
  }
  
  
  myOverLoad buildRect(Point topleft, Point  bottomRight){
        x1=topleft.x;
        y1=topleft.y;
        x2=bottomRight.x;
        y2=bottomRight.y;
        return this;
  }
  
  
   myOverLoad buildRect(Point topleft, int w, int h){
       x1=topleft.x;
       y1=topleft.y;
       x2=(x1+w);
       y2=(y1+h);
       return this;
  }
	
}
class Overload1{
public static void main (String[]args){
   my.buildRect(1, 2, 3, 4);
      my.buildRect(new Point(1,2), new Point(3,4)); 
        my.buildRect(new Point(1,2),10,11);
          
        System.out.println(my.buildRect(1, 2, 3, 4));
      System.out.println(my.buildRect(new Point(5,6), new Point(7,8) ));
   System.out.println(my.buildRect(new Point(5,6), new Poin(7,8) ));
  }
}

[sjalle]

I cannot imagine that this will compile as you are using an undeclared and uninitiated
variable (my) in the main method. If you instatiate a new instance of myOverLoad
like:

myOverLoad my=new myOverLoad();

and the call the buildRect method repeatedly you are changing the contents of the
my instance each time. What you should do was make a toString method for the
myOverLoad class like

public String toString() {
  return "myOverLoad: x1:"+x1+" y1:"+y1+" x2:"+x2+" y2:"+y2;
}

The you could, in the main method do this:

System.out.println(my.buildRect(new Point(1,2), new Point(3,4)));

and so on....

But..... why ?