Can not use subtract operator with Double.MAX_VALUE Java -

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i'm trying following code:

double = double.max_value - (1000000000 * 100000000 * 1000000); system.out.println(a);

however, result still 1.7976931348623157e308 (max value of double)

can explain me?

1000000000 * 100000000 * 1000000 multiplication of 3 integers, results in overflow.

even if avoid overflow writing :

double = double.max_value - (1000000000.0 * 100000000.0 * 1000000.0);

you still see no difference since number subtracting double.max_value negligible compared double.max_value (~1.797*10^308, 275 orders of magnitude larger trying subtract it).


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