Extension methods provide a great way for extending a class functionality -- but it's interfaces that let you use those methods anywhere you want. Extension methods let you add functionality to an ...

So I'm at a client's site and we're discussing adding a new method to an existing class. One of the client's programmers said, "We should put the method in the base class and let all the derived ...

Is there a Java class that you’ve always felt was missing some useful functionality for Android development? With Kotlin it is possible to quickly and easily add functionality to existing classes, ...