Now take a look at Listing 3, which shows a sigmoid derivative function in Java. We’ve talked about derivatives conceptually, here’s one in action. Listing 3.

There was no need to give the function a name, such as: basicParabola (x) = x 2. In this sense, lambda functions are unnamed and anonymous. Lambda functions in Java. This discussion on the etymology ...

Method references in Java are part of the broader set of features introduced and enhanced in Java 8 and beyond. They are a concise way to refer to methods of classes or objects.