17 Chapter Summary

1 the Java IO Class library constructs and provides a mechanism for various types of streams and the creation of flows to complete the reading and writing of different devices.

2 according to the direction of the data flow, you can divide the flow into the input stream and the output stream, according to the smallest difference of processing data can divide the stream into byte stream and character stream according to Liu's function and role can be divided into low-level and advanced flow two categories.

3 The difference between low-level and advanced streams is that low-level streams can be directly connected to a particular data source, while advanced streaming does not, judging whether a stream class is an advanced class or a lower class, and the simplest constructor is a stream as a parameter;

4 Inputstram Outputsteam Read writer is an abstract class of four streams all classes are subclasses of these four abstract classes.

The suffix of the 5 stream class name indicates his category, the prefix of the stream name and the general of his handling object and device.

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17 Chapter Summary