Buffered reader in java is similar to buffered writer. It writes data to files in large chunks. Example of bufffered reader is below.

  try(BufferedReader br = new BufferedReader(new FileReader("directions.txt"))) {
            String input;
         //while next line is not null
            while((input = br.readLine())!=null){
               //split data on each line into an array based on the comma 
                String[] data  = input.split(",");
                int loc = Integer.parseInt(data[0]);
                String direction = data[1];
                int destination = Integer.parseInt(data[2]);
             }
        } catch (IOException e) {
            e.printStackTrace();
        }
   }