Strange syntax for instantiating an inner class

Question

I didn\'t imagine that I would encounter radically new syntax in Java anymore at this stage, but lo and behold, I just encountered something:

The exact context a

Answer 1

Button.ClickEvent is a non-static inner class so an instance of this class can only exist enclosed in a instance of Button.

In your second code example you have an instance of Button and you create an instance of ClickEvent enclosed in this Button instance...