Chapter: Java The Complete Reference - The Java Language - I/O, Applets, and Other Topics

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I/O, Applets, and Other Topics

This chapter introduces two of Java’s most important packages: io and applet.

Chapter 13

I/O, Applets, and Other Topics

 

This chapter introduces two of Java’s most important packages: io and applet. The io package supports Java’s basic I/O (input/output) system, including file I/O. The applet package supports applets. Support for both I/O and applets comes from Java’s core API libraries, not from language keywords. For this reason, an in-depth discussion of these topics is found in Part II of this book, which examines Java’s API classes. This chapter discusses the foundation of these two subsystems so that you can see how they are integrated into the Java language and how they fit into the larger context of the Java programming and execution environment. This chapter also examines the try-with-resources statement and the last of Java’s keywords: transient, volatile, instanceof, native, strictfp, and assert. It concludes by discussing static import, describing another use for the this keyword, and introducing compact profiles (a feature added by JDK 8).


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