Question

Dollar dollar= (Dollar) object;

What does this snippet in do? Is it even Java? Or Smalltalk? I found it in TDD, which i think was written with Smalltalk in mind.

Answer 1

This could be Java. It basically casts an object of generic type (perhaps just Object) to a Dollar object.

Example:

Object object = ObjectFactory.getObject(); // Gets object
Dollar dollar = (Dollar) object; // Cast to Dollar object, will throw an exception
                                 // if this isn't possible
dollar.dollarMethod();   // I can now call Dollar methods