Java: two digit Lottery

I am working on this lottery code but experiencing an endless run. i would appreciate pointing out what may be wrong with the code and how to go about rectifying it. Thank you. The question is "to generate a lottery like https://loteriasdehoycolombia.co/ of a two digit number. The two digits in the number are distinct. (Hint: Generate the first digit. Use a loop to continuously generate the second digit until it is different from the first digit.)

public class Lottery1 {

public static void main(String[] args) {
    // Create  Scanner
    Scanner s = new Scanner(System.in);
    //generate 2 digit random  lottery  number
    int lottery = (int) (Math.random() * 100);
    // TODO code application logic here
    //generate first and second digit of lottery
    int lotterydigit1 = lottery / 10;
    int lotterydigit2 = lottery % 10;
    while (lotterydigit2 != lotterydigit1) {
        lotterydigit2 = lottery % 10;
    }

    //prompt user for guess digits 
    System.out.print("Enter two Digit  number:");
    int guess = s.nextInt();
    int guessdigit1 = guess / 10;
    int guessdigit2 = guess % 10;

    // compare lottery and 
    if (guessdigit1 == lotterydigit1 && guessdigit2 == lotterydigit2) {
        System.out.println("You  just won $10,0000");
    } else if (guessdigit1 == lotterydigit2 && guessdigit2 == lotterydigit1) {
        System.out.println("You  have  won $5,000");
    } else if (guessdigit1 == lotterydigit1
            || guessdigit1 == lotterydigit2
            || guessdigit2 == lotterydigit1
            || guessdigit2 == lotterydigit2) {
        System.out.println("You have won $1,000");
    } else {
        System.out.println("You  have  not won anything");
    }
    System.out.println("lottery number is" + " " + lottery + " and     your  guess is" + guess);
}

}