var-args conversion

[Adolfo Eloy]

Hi all.

I'd like to know what compiler does when a short argument is passed to a method with (long... x) var-args.
Does it widen the short to a long? does it box into an object (considering that long... x is converted to a long[] which is an object)?

public class Eggs {

	int doX(long... x) { return 2; }
	
	public static void main(String[] args) {
		new Eggs().go();
	}
	
	void go() {
		short s = 7;
		System.out.println(doX(s, s));
	}
}

tks!

[Kushan Athukorala]

Hi Adolfo,

It gets widens from short to long.
It does not box in to Object.

Regards,
Kushan

[Adolfo Eloy]

Thanks Kushan.

I got the point.

[Arjun Srivastava]

This link will help you understand more.