VarArgs

[Raja Narasimha]

Hi, Please let me know why I am getting the compiler error as given below. I am expecting method at Line # 3 should be invoked

public class P249_varArgs02_Ask {

    static void test(byte... x) {
	System.out.println("byte  " + x);
    }

    static void test(int... x) {
	System.out.println("int  " + x);
    }

    public static void main(String args[]) {
	byte b1 = 10;
	test(b1, b1);//compile Error : The method test(byte[]) is ambiguous for the type P249_varArgs02
    }
}

[Prasad Kharkar]

when trying to make a call to the method
there is confusion to the compiler because byte method is also there and int method is also there
and compiler does not know which method to choose
always remember that if same method signature is not found
also widening is not found var arg method is chosen at the last

[Raja Narasimha]

Hi Prasad, In this program we are passing byte variables at Line 13 which means Line 3 should be executed know ?

[Stephen Davies]

a byte is also an int (just smaller in memory). b1 is a literal and refers to an integer type so the compiler is getting confused as to which method to call. I think there is some implicit conversion going on or similar. Of course I may well be off, but that's my understanding.