mock exam question on repaint

[Jyotsna Umesh]

Hi Friends,
Thi is a question from MindQ mock exam.
Which of the following describe the sequence of method calls that result in a component being redrawn?
a) invoke paint() directly
b) invoke update which calls paint()
c) invoke repaint() which invokes update(), which in turn invokes paint()
d) invoke repaint() which invokes paint directly
I think option c is right. Please confirm.
and also when I click link to see answer key, the link doesn't work and takes me to Javaranch site. Please suggest how to check answer key.
Regards
Jyotsna

[William Brogden]

Actually, none of those is precisely correct.
Calling repaint() registers the request to have the component repainted with the JVM, entirely indirectly. The JVM has a stack of these requests.
When the JVM gets around to it, the Thread devoted to event handling is used to call the Component update method, which normally calls paint. However, update can be overriden also.
Bill

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[Marcus Green]

Even better, this topic does not come up on the Programmers Certification exam (it used to on an older version).
Marcus