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A comment on Java: "+=" applied to String operands can provoke side effects.

Re:Java: "+=" applied to String operands can provoke side ef... by oblong on Wednesday June 06, 2018 @03:06PM (#17250069)
> "side effects"

A side effect would be like submitting an order for am Amazon Echo by mistake.

This is a bug, a serious bug, that leads to variables being assigned the wrong value.

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Re:Java: "+=" applied to String operands can provoke side ef... by brianpan on Wednesday June 06, 2018 @06:56PM (#17251828)
"side effects" because this is only a problem if your lhs is not stateless (has side effects).
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