If you read this, and still don't understand what is the syntax, read on:
A Java Function is like a method, but is more powerful than a method. For the purpose of this lab, you would only need to know that a fucntion, is like a method.
At the meantime, a Function is an Object (instance of a class), and so to start coding up your Function, you need to declare a Function, just like any other Object.
When you declare an Object, you do this: