Teach Yourself Java in 21 Days

Teach Yourself JAVA in 21 Days

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P2/V4SQC6    TY  Java in 21 Days   030-4    louisa  12.31.95

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Day 16 covers interfaces and packages, useful for abstracting protocols of methods to

aid reuse and for the grouping and categorization of classes.

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Day 17 covers exceptions: errors and warnings and other abnormal conditions,

generated either by the system or by you in your programs.

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Day 18 builds on the thread basics you learned on Day 10 to give a broad overview of

multithreading and how to use it to allow different parts of your Java programs to run

in parallel.

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On Day 19, you’ll learn all about the input and output streams in Java’s I/O library.

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Day 20 teaches you about native code—how to link C code into your Java programs

to provide missing functionality or to gain performance.

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Finally, on Day 21, you’ll get an overview of some of the “behind-the-scenes” techni-

cal details of how Java works: the bytecode compiler and interpreter, the techniques

Java uses to ensure the integrity and security of your programs, and the Java garbage

collector.