DrawDot dd1 = new DrawDot(50, 80); 
 
void setup() { 
  size(200, 200); 
} 
 
void draw() { 
  dd1.display(); 
} 
 
class Dot { 
  int xpos, ypos; 
} 
 
class DrawDot extends Dot { 
  DrawDot(int x, int y) { 
    xpos = x; 
    ypos = y; 
  } 
  void display() { 
    ellipse(xpos, ypos, 200, 200); 
  } 
}