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We can create streams of data from files, network resources, memory locations, etc, both input and output. To initially demonstrate the use of streams, we'll use streams around a file, both byte and Character streams. The methods introduced in these example can be used for any stream.

InputStreams and OutputStreams are streams of bytes:

Readers and Writers are streams of Characters:

Closing Streams

When we write to an output stream or writer such as FileWriter, we should always close() it in some way:

We can choose from many such methods to read and write characters to streams, where the stream is always closed automatically. Here's some methods which use a Reader and/or Writer. Although these examples use Files, all these methods work for other streamed resources also.

Some methods which use an input and/or output stream which, although using Files in the examples, all work for other streamed resources also:

Although the examples in this tutorial used streams, readers, and writers around files, they're all available for streams, readers, and writers around all other resources also.

TO BE CONTINUED

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