public class Bruteforcer {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
          char[] charset = "ABCDEFGHIJKLMNOPQRSTUVWXYZ".toCharArray();


         int currentIndex = 0;
         String currentString = "";

         while (true){

            currentString = "" + charset[currentIndex +1] ;
            System.out.println(currentString);

            if (currentIndex == charset.length -2){
              currentIndex = 0;
              currentString = currentString + + charset[currentIndex +1];
            }else{
                currentIndex ++;
            }
         }
    }
}