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Oracle Certified Professional Java SE 7 Programmer Exams 1Z0-804 and 1Z0-805: A Comprehensive OCPJP 7 Certification Guide by Tushar Sharma, S G Ganesh

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CHAPTER 3

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Java Class Design

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Java is an object-oriented programming (OOP) language. Object orientation helps a developer to achieve a modular, extensible, maintainable, and reusable system. To write good-quality programs, a programmer must have a firm command of OOP concepts.

Object-oriented programming revolves around the concept of an object, which encapsulates data and behavior acting on the data together. An object provides its services through a well-defined interface. This interface specifies “what” the object offers, abstracting “how” ...

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