For an introduction to Java interfaces, including the difference between classes and interfaces, see my Java 101 tutorial Working with interfaces in Java. Nesting interfaces in classes.

In addition to writing for JavaWorld, he has written his own Java book for beginners— Java 2 by Example, Second Edition (Que Publishing, 2001; ISBN: 0789725932)—and helped write Using Java 2 ...

Learn about serialization in Java with our comprehensive tutorial. We provide examples to help you understand how serialization works. ... Java provides the Externalizable interface.

This is an in-depth java tutorial for beginners. ... This is the “Integrated Development Environment” or IDE: the interface used by developers to enter their code and call upon the JDK.

There are over 40 functional interfaces listed in the java.util.functions package, which can make the prospect of functional programming in Java ... This restriction doesn’t apply to the Function ...

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 ...