Does array changes in method?

Question

When I write like this:

public class test {

    void mainx()
    {
        int fyeah[] = {2, 3, 4};
        smth(fyeah);
        System.out.println(\"x\"+fy         


        

Answer 1

Seeing it a bit less technically, I would say that

    fyeah[0] = 22;

is changing the content of (the object pointed to by) fyeah, while

    fyeah = 22;

is changing (the variable) fyeah itself.
Another example:

void smth(Person person) {
    person.setAge(22);
}

is changing (the content of) the person while

void smth(Person person) {
    person = otherPerson;
}

is changing the variable person - the original instance of Person is still unchanged (and, since Java is pass-by-value, the variable in the calling code is not changed by this method)