Java math function to convert positive int to negative and negative to positive?

Question

Is there a Java function to convert a positive int to a negative one and a negative int to a positive one?

I\'m looking for a reverse function to perfor

Answer 1

Just use the unary minus operator:

int x = 5;
...
x = -x; // Here's the mystery library function - the single character "-"

Java has two minus operators:

• the familiar arithmetic version (eg 0 - x), and
• the unary minus operation (used here), which negates the (single) operand

This compiles and works as expected.