How do I loop through a string in R?

Need to implement loop in this string?

• I'm trying to make it allow more than one chance to input an answer. This is abbreviated code for the sake of space. Any help is appreciated. :-) I could make this a lot prettier if I knew how to preformat text on here but I can't figure it out. if you know let me know lol. import java.util.Random; import java.util.Scanner; import static java.lang.System.out; class randomNumber { public static void main(String args[]) { Random myRandom = new Random(); String reply; int randomNumber; randomNumber = myRandom.nextInt(2) + 1; switch (randomNumber) { case 1 : out.println("1 = "); Scanner myScanner = new Scanner(System.in); reply = myScanner.nextLine(); if (reply.equalsIgnoreCase("A")) { System.out.println("Correct!"); } else { System.out.println("Try again!"); } break; case 2 : out.println("2 = "); Scanner myScanner1 = new Scanner(System.in); reply = myScanner1.nextLine(); if (reply.equalsIgnoreCase("B")) { System.out.println("Correct!"); } else { System.out.println("Try again!"); } } } }

• Answer:

  Use this while loop before the switch statement: while (!reply.equalsIgnoreCase("A") && !reply.equalsIgnoreCase("B")) switch..... Or better yet, do a do while loop: do { switch..... ..... } while (!reply.equalsIgnoreCase("A") && !reply.equalsIgnoreCase("B"))