So for example, starA.addstarsize(starB). Is it possible for this method to return ANOTHER new star object. And if so how would I write it. Writing it as 

```
public void addsizestar(starB) 

```

doesnt return a new star object and only updates starA and writing it as 

```
public static star addsizestar(startB)

```

requires another parameter. I want to keep it at one input parameter if possible.