Why doesn’t Java throw an Exception when dividing by 0.0?

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Java’s float and double types, like pretty much any other language out there (and pretty much any hardware FP unit), implement the IEEE 754 standard for floating point math, which mandates division by zero to return a special “infinity” value. Throwing an exception would actually violate that standard.

Integer arithmetic (implemented as two’s complement representation by Java and most other languages and hardware) is different and has no special infinity or NaN values, thus throwing exceptions is a useful behaviour there.

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