whats the output? import java.util.Scanner;

import java.io$.$PrintWriter;

import java.io$.$StringWriter;

public class StringOutputStream $\{$

public static void main$($String$[]$ args$)\{$

String item;

int quantity;

int discount;

StringWriter itemCharStream $=$ new StringWriter$()$;

PrintWriter itemOSS $=$ new PrintWriter$($itemCharStream$)$;

item $=$ "Headphones";

quantity $=18$;

discount $=40$;

itemOSS.println$($item $+"$ x$"+$ quantity$)$;

itemOSS.print$($discount $+"\%$ off"$)$;

System.out.print$($itemCharStream$.$toString$())$;

$\}$

$\}$