What Java method takes an int and returns +1 or -1?

Question

What Java method takes an int and returns +1 or -1? The criteria for this is whether or not the int is positive or negative. I looked through the docum

Answer 1

Math.signum(double i)

Returns the signum function of the argument; zero if the argument is zero, 1.0 if the argument is greater than zero, -1.0 if the argument is less than zero. Special Cases:

• If the argument is NaN, then the result is NaN.
• If the argument is positive zero or negative zero, then the result is the same as the argument.

Parameters:

• d - the floating-point value whose signum is to be returned

Returns: The signum function of the argument

Since: 1.5