Classes, fields, methods, constructors, and objects are the building blocks of object-based Java applications. This article will teach you how to declare classes, describe attributes via fields, describe behaviors via methods, initialize objects via constructors, and instantiate objects from classes and access their members. Along the way you'll also learn about setters and getters, method overloading, setting access levels for fields, constructors, and methods, and more. If you want to go a little further with fields and methods, you may also download the free Java 101 primer showcasing constants, recursion, and other techniques in object-based programming.
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