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 ...

Unlock the secrets of Java constructors! Dive into this detailed study of Java, a must for programming languages.

100 100 Parameterized Constructors Most often, you will need a constructor that accepts one or more parameters. Parameters are added to a constructor in the same way that they are added to a method, ...

1] The this() expression should always be the first line of the constructor. 2] There should be at-least be one constructor without the this() keyword (constructor 3 in above example). 3] Constructor ...

The Java language spec lists 10 Java constructor types, including default, no-args, canonical, private parameterized, generic, overloaded and anonymous.

What's the benefit of making a private constructor and a public getInstance method? I understand why you would make the constructor private: to keep someone from instantiating a class.

Joshua Bloch uses an example similar to mine above to illustrate Item 5 (“Avoid Creating Unnecessary Objects”) in the Second Edition of Effective Java. He points out that this extra ...