import java.util.Scanner;


public class Testcode {
    public static void main(String[] args){

        Scanner input = new Scanner(System.in);
        boolean playAgain = false;
        do{
            System.out.println("Guess the random number:");

            int userGuess = -1;
            int randomNumber = 5;
            int numberOfAttempts = 1;

            String text = input.nextLine();
            userGuess = checkIfInteger(text, input); //keeps asking for a integer until it has one.

            while(userGuess != randomNumber){
                System.out.println("You guessed wrong! Guess again:");
                text = input.nextLine();
                userGuess = checkIfInteger(text, input);
                numberOfAttempts++;
            }

            if(userGuess == randomNumber){
                System.out.println("You guessed right in "+numberOfAttempts+" attempts.");
                System.out.println("Wanna play again?");
                String reply = input.nextLine();

                if(reply.toLowerCase().startsWith("y")){
                    playAgain = true;
                }
                else{
                    playAgain = false;
                }

            }
        } while (playAgain);
    }

    private static int checkIfInteger(String text, Scanner input) {
        while(true){
            try{
                int number = Integer.parseInt(text);
                return number;
            }
            catch(NumberFormatException nfe){
                System.out.println("You didnt write an integer! Please try again:");
                text = input.nextLine();
            }
        }
    }
}