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.

This post explains how to use classes in Java to build objects and organize your code. Also learn: constructors, static methods, and more!

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

A Java string is a sequence of characters that exists as an object of the class java.lang. Java strings are created and manipulated through the string class. Once created, a string is immutable -- its ...