Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs. Abstract classes and ...

So, I'm new to the whole Java and programming thing. I've been working my way through Thinking in Java and Just Java 2. So far, it has gone very well. I think the two resources complement each other ...

Community driven content discussing all aspects of software development from DevOps to design patterns. Many developers get intimidated when they look at all the new APIs that accept lambda ...

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, ...

The release of Java SE 15 in Sept 2020 will introduce "sealed classes" (JEP 360) as a preview feature. A sealed class is a class or interface which restricts which other classes or interfaces may ...

Method references are a shorthand way to write lambda expressions that call a single method. Rather than implementing a method in a functional interface, a method reference simply points to an ...