Balle[]maballe=new Balle[10];  
void setup()  
{  
  size(500, 500);  
  for (int i=0;i<10;i++)  
  {  
    maballe[i]=new Balle(random(width), random(height));  
    println(maballe[i].position);
  }
  noLoop();
}  
void draw()  
{  
  for (int i=0;i<10;i++)  
  {  
    maballe[i].display();
  }  
  for (int i=0;i<10;i++)  
  {  
    for (int j=i+1;j<10;j++)  
    {  
      float distance= maballe[i].position.dist(maballe[j].position); 
      println(distance);
    }
  }
}  
class Balle {  
  PVector position;  
  Balle(float px, float py) {  
    position=new PVector(px, py);
  }  
  void display()  
  {  
    ellipse(position.x, position.y, 20, 20);
  }
}