4. (3 points) Describes the purpose of (4) at line 6. 1 (1) Listing 1: Buffered Streams Class to Write an Output in abc.txt import import import (3) 2 (2) 3 4 5 6 { 7 (5) 8 9 public class bufferstream public static void main (String[] args) (4) FileOutputStream fout - new FileOutputStream BufferedoutputStream bl = (6) try bi = new BufferedoutputStream( (7)); String s = "I am using Buffered Stream byte b[l - (8)_.getBytes(); .write(b); 10 11 12 13 14 15 16 17 finally if (b1 != null) bi.close(); if (fout != null (10) 18 19 fout. 20 21 22 }