How do I check if a zero is positive or negative?

Question

Is it possible to check if a float is a positive zero (0.0) or a negative zero (-0.0)?

I\'ve converted the float to a String a

Answer 1

The approach used by Math.min is similar to what Jesper proposes but a little clearer:

private static int negativeZeroFloatBits = Float.floatToRawIntBits(-0.0f);

float f = -0.0f;
boolean isNegativeZero = (Float.floatToRawIntBits(f) == negativeZeroFloatBits);