Java使无限循环执行:/

Question

我已经编程了一晚上了，我再也找不到错误了:/:/ 如果 intro == 1 或 2 则执行此操作...如果 intro != 1 或 2 则再次询问数字，直到数字为 1 或 2...我找不到错误:/

   do{
        System.out.println("Enter number: ");
        Scanner scanintro = new Scanner(System.in);
        intro = scanintro.next();
    }while (intro == ("1")|| intro == ("2"));

Answer 1

do{
    System.out.println("Enter number: ");
    Scanner scanintro = new Scanner(System.in);
    intro = scanintro.nextInt();
} while (intro == 1|| intro == 2);