•HLine paintOn messages in HLine unit
test (main)
–line 116: hline1.paintOn(screen)
–line 118: hline1.paintOn(screen, 0, 1)
•Two declarations for paintOn in
HLine.java:
–line 45: paintOn(Screen,
int, int)
–line 58: paintOn(Screen)
– delegates work
to first paintOn
•JVM uses shape of message to select
method
• Signature: method name & types of parameters
•