What is the use of buffered reader in Java?

Answer 1

Just like the FileReader the BufferedReader is used to read text from a character input stream, but it buffers its characters to allow efficient reading. You can wrap a BufferedReader around any Reader, for example...

BufferedReader in = new BufferedReader(new FileReader("filename"));

Answer 2

if your stream has a lot of data at irregular intervals, or if the non-buffered input is not processing at the time