Member Avatar for ranu jain

please some one would explain me why we use Bufferedreader() instead of using InputStreamReader() only.

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  • Latest Post Latest Post by JamesCherrill
Member Avatar for JamesCherrill

It's in the doc for bufferedreader...

In general, each read request made of a Reader causes a corresponding read request to be made of the underlying character or byte stream. It is therefore advisable to wrap a BufferedReader around any Reader whose read() operations may be costly, such as FileReaders and InputStreamReaders. For example,

BufferedReader in
= new BufferedReader(new FileReader("foo.in"));


will buffer the input from the specified file. Without buffering, each invocation of read() or readLine() could cause bytes to be read from the file, converted into characters, and then returned, which can be very inefficient.

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