7.4 The FileInputStream class
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The FileInputStream class is used to retrieve the contents of
a file. It's constructor accepts the name of a file to open as an argument.
For instance:
FileInputStream input = new FileInputStream("test.txt");
Because the FileInputStream will read from the file a byte at a
time it can be inefficient. To avoid this problem a BufferedInputStream
is normally wrapped around the FileInputStream. For example:
BufferedInputStream input = new BufferedInputStream( new FileInputStream("test.txt") );
