Create packages, import packaged classes and interfaces into your programs, move packages, and encapsulate them in jar files.

Packages can store classes and interfaces, as well as subpackages, which are packages nested within other packages. A package has a name, which must be a non-reserved identifier; for example, java.

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.

Do you need an example of how to use Java's UnaryOperator in a functional Lambda expression? This tutorial shows you where when and how to use the UnaryOperator interface in a function.