Checking While Loop with if statement

The while loop and if statement work through the first iteration. After it completes and it prints "Do you want another time?" and I input "Y" the program terminates and I don't know why. My logic and syntax seem to be correct but there is always flaws that I cant see with my own eyes. I would appreciate it if someone can point the flaw out.

while (!check) {
    str = in.nextLine();
    if (in.hasNextLine() && str.equals("Y")) {
        hours = ran.nextInt(11) + 1;
        minutes = ran.nextInt(60);
        if (minutes < 10) {
            System.out.println(hours + ":" + "0" + minutes);
        } else {
            System.out.println(hours + ":" + minutes);
        }
        System.out.println("Do you want another time?");

    } else {
        check = true;
    }
}