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Brush function doesnt appear

Miko Jing

Joined: Dec 11, 2013
Posts: 5
in my paint program have brush function. It seem doesnt appear anything when select the brush function.

Campbell Ritchie

Joined: Oct 13, 2005
Posts: 46337
I never like listeners which test for their origin. Of course using the == operator on Strings is very likely to fail. Otherwise, don't know. I htink that is too much code to read.
Sam Gooding
Ranch Hand

Joined: Dec 06, 2013
Posts: 35
Because startPoint and endPoint are defined locally to the loop which you leave when you go on to process the "brush" part of paintComponent. They both therefore become null , and you only process your brush logic if they AREN'T null (which they are , because they're out of scope) .
I agree. Here's the link:
subject: Brush function doesnt appear
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