Re: Please help: Exception in thread "Thread-3" java.lang.NullPointerException

There are several issues with the code:

1. Don't override 'boolean mouseDown()' to handle mouse events. It's
deprecated and for sure doesn't generate an event on my system. Add a
mouselistener (in the init) to the applet instead on implement it's
'mouseClicked()' method.

2. It still generates a NullPointer, because starPoint is never
initialized. Initialize it in the init(): starPoint = new
Point(getWidth() / 2, getHeight() / 2);

3. The thread you is never started. Check you start() method

starThread = new Thread(this);
...
if (starThread == null) { // This can never be null, so start() is
never called on the thread.
starThread = new Thread(this, "Clock");
starThread.start();
}

Regards,

Bart

.

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