Chapter Three. Object-Oriented Programming

Your next step in programming effectively is conceptually simple. Now that you know how to use primitive types of data, you will learn in this chapter how to use, create, and design higher-level data types.

An abstraction is a simplified description of something that captures its essential elements while suppressing all other details. In science, engineering, and programming, we are always striving to understand complex systems through abstraction. In Java programming, we do so with object-oriented programming, where we break a large and potentially complex program into a set of interacting elements, ...

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