Desk desk = new Desk(); int NBR_CUPS = 5; void setup() { size(500, 500); desk._width = 450; desk._height = 450; for(int i = 0; i < NBR_CUPS; i++) { Cup c = new Cup(i * 100, i * 100, 20, 20); desk.addItem(c); } } void draw() { desk.display(); } void mousePressed() { desk.mousePressed(mouseX, mouseY); }