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 ...

Rewrite object-oriented code using functional techniques. Get started with lambdas, method references, functional interfaces, and the Streams API in Java Welcome back to this two-part tutorial ...

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, ...