this simple java program:

public static void main(String[] args){

Scanner keyboard = new Scanner(System.in);

int chooseFromMenu;

do { showList(); chooseFromMenu = takeChoseFromUser(keyboard); switch (chooseFromMenu) { case 1: readLettersFromUser(keyboard); break; // this method to read word or letters from user any letters just simple case 2: Exit(); // this method to terminate the program } } while(chooseFromMenu != 2);