Hello.
In my Cat and Mouse testbed, I "solved" my
double-buffering problem by reconfiguring it as both
an applet and an application; it looks correct as an
applet but not as an application.
Now I have another problem.
About a third of the time I start, I get the
following message:
java.lang.NullPointerException
at
sun.awt.image.BufferedImageGraphics2D.drawImage(BufferedImageGraphics2D.java:539)
at BackingStore.blitTo(BackingStore.java:115)
at
DoubleBufferedContainer.blitBackgroundToWorkplace(DoubleBufferedContainer.java:273)
at Sprite.advance(Sprite.java:93)
at Sprite.animate(Sprite.java:109)
at Playfield.run(Playfield.java:91)
at java.lang.Thread.run(Thread.java:484)
I am running this on Windows 98 in a Dell 486
Pentium I. I have also encountered similar messages
on faster Win2K platforms, but not that frequently. I
don't believe I've had any such errors on a WinNT.
I also have a slight problem with AudioClips not
playing (and it's not because they're null), but I
guess that's for a Java Sound discussion group.
Somebody help!
Cromwell
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CatAndMouse.jar
