Class – Everything in Java is associated with classes and objects. Being a user-defined blueprint, a class in simple terms represents the data structure which is used again and again.

Here's how to make classes, fields, methods, constructors, and objects work together in your Java programs.

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

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 ...

The importance of employing a good data-validation framework cannot be overestimated. Eventually, someone (maybe even yourself!) is going to reuse the classes you've created. Unless your objects ...