Store floating point number into long type

Question

I'm using Hadoop counter in Java, which only supports integer/long counter type, but I need a floating point counter. I was wondering is there a way to store a floating point number into integer or long type, then recover the original value from integer/long type without losing precision?

Answer 1

Double.doubleToLongBits and Double.longBitsToDouble should do the trick if it's a double . There are analogous methods on Float for ints.

Answer 2

Class Float provides the methods you need:

int intValue = Float.floatToIntBits(floatValue);
int floatValue2 = Float.intToFloatBits(intValue)
// floatValue2 == floatValue

The same methods are available for double types too (see class Double )