Here’s an example of how a Function and lambda expression work together: Function<Integer, String> verboseLambda = (Integer x)-> { return Integer. toString (x*x); }; System.

Java 8 introduced predefined functional interfaces (java.util.function) so that developers don’t have create our own functional interfaces for common tasks. Here are a few examples: ...

So to learn Java lambda syntax, you need to be familiar with its three component parts: The argument list The arrow The method body To apply these concepts, we first need a functional interface. A ...

Functional interfaces Java 8 will have a new feature called functional interfaces. Basically, default methods are added to an interface and do not have to be overridden in the interface ...