Lambdas and the Function interface The goal of the Function interface is to take a value from the program, perform some type of calculation or operation on that value and then return a new value. Here ...

A great deal of Java programming -- from conditional statements to iterative loops -- deals with the evaluation of true or false values. When you work with the JDK's Streams API and Lambda functions, ...

For example, you might use a vending machine interface to select an item, pay for it, and receive a food or drink item. From a programming perspective, an interface sits between software components.

This is an in-depth java tutorial for beginners. Learn what Java is, how to get started, and how to build basic apps using key concepts!

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