Community driven content discussing all aspects of software development from DevOps to design patterns. Quite often a Java Stream or other component needs an object passed to it in order to perform ...

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 ...

In recent weeks, there has been news of various features once proposed for JDK 7 that no longer are slated for this release. Although it is not unusual to reduce the scope of a major software project ...

You want Bar to be passed a function to call, but not use it on construction, only on the callbacks from the GUI widget. That function must end up being an actual method somewhere (it's Java, ...

Get a primer on the basic syntax of lambda expressions and learn about target types, then find out how lambdas interact with scopes, local variables, the this and super keywords, and exceptions in ...