Question

JAVA PROGRAMMING:

Write an input validation loop (i.e. a loop that checks to see whether the input received from the user is valid) that asks the user to enter the word “yes” or “no”.

Answer 1

import java.util.Scanner;

public class InputValidation {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        String choice;
        while (true) {
            System.out.print("Enter either yes or no: ");
            choice = in.nextLine();
            if (choice.equalsIgnoreCase("yes") || choice.equalsIgnoreCase("no"))
                break;
            System.out.println("Invalid choice. Try again!");
        }
        System.out.println("You entered a valid value of " + choice);
    }
}