Why do we get such output to the console when executing this code?

Question

Java

Why do we get zero with a minus sign when we multiply a negative double or float number by zero?
double x = -1;
x *= 0;
System.out.print(x);
stdout
-0.0
float x = -1f;
x *= 0;
System.out.print(x);
stdout
-0.0

Answer 1

Java stores numbers according to the https://ru.wikipedia.org/wiki/IEEE_754-2008
standard , in which all numbers, including zero, can be positive or negative.