This ability to implicitly treat instance methods as functions accepting their instance as a parameter is a powerful feature of Java’s lambda expressions and method references. It allows you to ...

Any method you can conjure up takes an object and returns an object that fulfills the Java Function contract. How to use Java’s Function interface. For this Java Function interface example, we will ...

In Java, there are many, many places in which a piece of code needs a single method implementation. And there are many interfaces in the Java API where only a single method needs to be implemented.