Readers have returned quite a bit of feedback concerning, “Abstract Classes Vs. Interfaces” from April 2001. A recurring request asks to see a complete example of using interfaces and abstract classes ...

I would like MyCorpEmployees to have MyCorpEmployee overlords and underlings, and OtherEmployees to have OtherEmployee overlords and underlings. or, i did yesterday. i'm really thinking along the ...

There are only half a dozen classes you really need to master to become competent in the world of functional programming. The java.util.function package contains well over 40 different components, but ...