Shortcut "or-assignment" (|=) operator in Java

Posted by Dr. Monkey on Stack Overflow See other posts from Stack Overflow or by Dr. Monkey
Published on 2010-03-21T09:06:34Z Indexed on 2010/03/21 9:11 UTC
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Filed under:

java

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operator-overloading

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assignment-operator

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or-operator

I have a long set of comparisons to do in Java, and I'd like to know if one or more of them come out as true. The string of comparisons was long and difficult to read, so I broke it up for readability, and automatically went to use a shortcut operator |= rather than negativeValue = negativeValue || boolean.

boolean negativeValue = false;
negativeValue |= (defaultStock < 0);
negativeValue |= (defaultWholesale < 0);
negativeValue |= (defaultRetail < 0);
negativeValue |= (defaultDelivery < 0);

I expect negativeValue to be true if any of the default<something> values are negative. Is this valid? Will it do what I expect? I couldn't see it mentioned on Sun's site or stackoverflow, but Eclipse doesn't seem to have a problem with it and the code compiles and runs.

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