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 ...

If no user defined constructor is provided for a class, compiler initializes member variables to its default values. numeric data types are set to 0; char data types are set to null character(‘’) ...

The Java language spec lists 10 Java constructor types, including default, no-args, canonical, private parameterized, ... Every class a Java developer creates needs a constructor. ... Create instances ...