•Box.java
line 143 sends a message: box2.paintOn( screen, 2, 2
);
•Execution
shifts to method at Box.java line 52: public void paintOn( Screen s, int x, int y)
•Value
of parameter
– s in method is
value of screen in message
–x in method is
(first) 2 in message
–y in method is (second) 2 in message