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File, I/O

 
Ranch Hand
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hi all,
can anybody pls explain me briefly the difference between:
PrintWriter,BufferedWriter, FileWriter and
PrintReader, BufferedReader, FileReader.
When to go for what? whats purpose of each.
 
Java Cowboy
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Have a look at the API documentation for those classes to see what exactly their purpose is and have a look at the methods in each of those, that will give you an idea.
 
Greenhorn
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I am preparing for SCJP 1.4 , can anybody tell me whether those topics are there for the exam?
 
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