Answer Posted / karan

The Reader/Writer class hierarchy is character-oriented, and
the Input Stream/Output Stream class hierarchy is byte-oriented.
Basically there are two types of streams.Byte streams that
are used to handle stream of bytes and character streams for
handling streams of characters.In byte streams input/output
streams are the abstract classes at the top of
hierarchy,while writer/reader are abstract classes at the
top of character streams hierarchy.

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