Why? ( ‘-ωก̀ )

Question

public class MyClass {
public static void main(String[ ] args) {
int x = 5;
addOneTo(x);
System.out.println(x);
}

static void addOneTo(int num) {
num = num + 1;
}
}

Why is "5"?

Answer 1

because you're only changing the internal variable of the function addOneTo(int num) that means num, but x remains how it has been