How to cast a double to an int in Java?

Question

I need to cast a double to an int in Java, but the numerical value must always round down. i.e. 99.99999999 -> 99

Any ideas? :D

Answer 1

Math.floor(n)

where n is a double. This'll actually return a double, it seems, so make sure that you typecast it after.

Answer 2

Try using Math.floor.

Answer 3

This works fine int i = (int) dbl;

Answer 4

(int)99.99999

Will be 99. Casting a double to an int does not round, it'll discard the fraction part.

Answer 5

Casting to an int implicitly drops any decimal part. No need to call Math.floor().

Simply typecast with (int), e.g.:

System.out.println((int)(99.9999)); // Returns 99