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 ...

However, when related parameters are being passed to a constructor or method as part of a highly cohesive object, the refactoring known as Introduce Parameter Object is a nice solution.

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

Developers who create a runnable Java class, be it for a ‘Hello World’ demonstration or to kick off a fully featured enterprise application, will enjoy the following technical benefits when using ...

Yes, as <I>da</I> stated you can modify the contents (elements) of an array passed to a method and those changes will be visible to the caller after the called method has returned.<BR><BR>This is ...

So, we've got a guy who likes to write methods that take Objects as parameters, so they can be 'very flexible.' Then, internally, he either does direct casting, reflection, or method overloading ...

Do you have a single class in your Java design that does too much and knows too much? If so, you've fallen into the God object antipattern. Here's a look at how to refactor your God object and ...