Classes, fields, methods, constructors, and objects are the building blocks of object-based Java applications. This Java tutorial teaches you how to declare classes, describe attributes via fields ...

In this Java tutorial, you’ve learned how to use class field initializers and class initialization blocks to initialize classes, and how to use constructors, object field initializers, and ...

A Java constructor has the same name as the class. A constructor in Java does not have a return type. A constructor can't be static, volatile or final. Why are Java constructors needed? The goal of a ...

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

The Long.parseLong() method returns a long primitive, not a wrapper.; The Long.parseLong() method uses the Long class, which is semantically correct. The Long.parseLong() method does not require ...