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《Java核心技术卷Ⅱ　高级特性（原书第10版）》一2.1　输入/输出流

2.1　输入/输出流在Java API中，可以从其中读入一个字节序列的对象称做输入流，而可以向其中写入一个字节序列的对象称做输出流。这些字节序列的来源地和目的地可以是文件，而且通常都是文件，但是也可以是网络连接，甚至是内存块。抽象类InputStream和OutputStream构成了输入/输出（...

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