Question

I’ve got two classes: Alpha and Beta.

Beta inherits from Alpha.

How do I write a method in Alpha such that if I call it with an object of class Beta, it will return a new Beta object?

For example:

- (Alpha *)makeAnother {
  return [[[self class] alloc] init] autorelease];
}

I thought this would work, but it doesn’t.

Answer 1

Change the return type from Alpha* to id in this case. The rest of it is right.