Actionscript:
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var yellow:uint = 0xFFFF00;
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// draws yellow circle
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with(graphics) beginFill(yellow), drawCircle(100,100,50);
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// invert the color using XOR assignment
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// yellow becomes 0x0000FF
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yellow ^= 0xFFFFFF;
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// draws blue circle
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with(graphics) beginFill(yellow), drawCircle(200,100,50);
Just a fun use for XOR. You could also do it without XOR assignment:
Actionscript:
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with(graphics) beginFill(yellow ^ 0xFFFFFF), drawCircle(200,100,50);
Playing a little with bitwise operators is a good way to make sure you understand them. Try tweaking this trace statement:
Actionscript:
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trace((0x543210 ^ 0xFFFFFF).toString(16));
If you'd like to read about bitwise operators, I recommend wikipedia's article.