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Chapter 4. Classes and Interfaces(类和接口)

Chapter 4 Introduction(章节介绍)

CLASSES and interfaces lie at the heart of the Java programming language. They are its basic units of abstraction. The language provides many powerful elements that you can use to design classes and interfaces. This chapter contains guidelines to help you make the best use of these elements so that your classes and interfaces are usable, robust, and flexible.

类和接口是 Java 编程语言的核心。它们是抽象的基本单位。该语言提供了许多强大的元素,你可以使用它们来设计类和接口。本章包含了帮助你充分利用这些元素的指导原则,以便让你的类和接口是可用的、健壮的和灵活的。

Contents of the chapter(章节目录)