Java – how does a class that references itself work?

Suppose we have a class like this:

class XCopy {
    public static void main(String[] args) {
        int orig = 42;
        XCopy x = new Xcopy();
        int y = x.go(orig);
        System.out.println(orig + " " + " y);
    }
}

I know the go method is missing, but it doesn't matter Does this work? It seems so, but I can't picture in my mind how self reference in class works; Does it have any side effects? Why? Isn't this some kind of infinite recursive loop?

Anyway, I just can't figure out how it works; Thank you in advance

Solution

by telephone

XCopy x = new Xcopy();

You are actually calling xcopy's empty constructor instead of calling the main method

So the call looks like:

JVM calls XCopy.main();
main method creates new instance of XCopy by calling XCopy's empty constructor
XCopy constructor ends
main method ends -> program ends