JAVA is not, so data processing is different.

You must divide two integer data.

Int type is integer data, and only integers can be saved.

If you divide two floating-point or double-precision data, the situation is different.

Will be equal to 0.5.

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The problem of complement, that is the compiler's business, don't worry about it.

The reason why high-level languages are invented is to liberate programmers from tedious assembly code.

That's the compiler's business.