Chapter 4, Problem 8AW

Convert the do-while loop in the following code to a while loop:

 Scanner keyboard = new Scanner(System.in);

 String input;

 char sure;

 do

 {

   System.out.print(“Are you sure you want to quit? ”);

   input = keyboard.next();

   sure = input.charAt(0);

 } while (sure != ‘Y’ && sure != ‘N’);