Buffer Class or Buffered Reader Class is another Input /Output System in Java programming that is defined within a package named ‘java.io’. Where
“IO” stands Input / Output.
To use buffer class, first, it should be imported as:

This is followed by the declaration of Buffered Class within the class so that the compiler understands the link the main program to the buffered class.
The syntax goes as:
Option 1) 

BufferedReader bf=new BufferedReader(new InputStreamReader(System.in));

Option 2)

InputStreamReader bf=new InputStreamReader(System.in);

BufferedReader obj =new BufferedReader(bf);

Both the ways are equivalent and their usage absolutely depends on the preference of the programmer.

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CopyRight © 2019

CopyRight © 2019