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inputstream and outputstreams

Anonymous
Ranch Hand

Joined: Nov 22, 2008
Posts: 18944
which of these can act as both input and as an output stream,based on the classes provided by the java.io.package ?
select all valid answers
a) A file
b) A network connection
c) A pipe
d) A string
e) An array of chars
answers are a,b,c,d,e
can anybody explain the answers if possible,i dont know much on it.
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: inputstream and outputstreams
 
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