Can someone give me brief description of how this example works

Question

I am a beginner in programming world. I was going through the java course here, at this point I got stuck because I don't know how the output of the following example is 5.

Can someone please explain to me how this example actually works?

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;
}
}
// Outputs "5"

Answer 1

It is happened because you pass copy of varible x in your method. Therefore initial value is not changed

Answer 2

I had tried my best to explain it here.

Hope this helps☺️☺️.

https://www.sololearn.com/Discuss/1406887/?ref=app