convert float negative value to positive

Question

How to convert float negative value to float positive value

example -1.5 to 1.5

Answer 1

Multiply it by -1.

Or negate it.

Or get the absolute value.

Basic arithmetics.

float neg = -1.5f;
float pos1 = neg * -1;
float pos2 = -neg;
float pos3 = Math.abs(neg);

Answer 2

assign the negative:

float f = -1.5f;
f = -f;

Answer 3

The Absolute Value Function in Java is Math.abs:

double f = Math.abs(-1.5); // f is now 1.5