Terminate program with letter Q

I'd like to terminate the program by typing Q whenever. I can't place it in "diceChosen" becuase it's an integer. I've tried different things but nothing works for me.

Thanks!

{ Scanner userInput = new Scanner(System.in);

  int wins = 0;
  int losses = 0;
  
  int diceOne = 0;
  int diceTwo = 0;
  int diceThree = 0;
  
  int sum = 0;
  
  
  System.out.println("Välkommen till spelet 12. Du ska slå 1-3 tärningar och försöka få summan 12...");
  
  
  
  for (int counter = 0; counter < 3; counter++)
  {
     
     System.out.printf("%nAnge vilken tärning du vill slå[1,2,3](avsluta med q): ");
     
     int diceChosen = userInput.nextInt();
     
     if (diceChosen == 1)
        diceOne = (int)(Math.random()*6)+1;
  
     if (diceChosen == 2)
        diceTwo = (int)(Math.random()*6)+1;
  
     if (diceChosen == 3)
        diceThree = (int)(Math.random()*6)+1;
  
     sum = diceOne + diceTwo + diceThree;
  
     if (sum == 12)
        ++wins;
  
     if (sum > 12)
        ++losses;
  
  
     System.out.printf("%d %d %d sum: %d #vinst: %d #förlust: %d" , diceOne , diceTwo, diceThree, sum, wins, losses);
  
  }
  

}