Question

I know this is simple, but I don’t really understand the homework-question:

Assume the signature of the method xMethod is as follows.
Explain two different ways to invoke xMethod:

public static void xMethod(double[] a)

I thought to invoke a method you just do:

xMethod(myarray);

What could it mean by asking two different ways?

Answer 1

If this is for a first time java class, my guess is he is looking for these 2 cases:

//the one you have, using a precreated array
double[] myArray = {1.1, 2.2, 3.3}
xMethod(myarray);

//and putting it all together
xMethod(new double[]{1.1, 2.2, 3.3});

Basically illustrating you can make an array to pass, or simply create one in the call.

Just a guess though