public static void main(String[] args) {

    System.out.println("I have a dream, that is winning an exclusive LeetCode T-Shirt!");

    String sc = new String("Would I win the LeetCode T-Shirt?");

    String str;
    while (true) {

        str = sc;

        str = str.replace("?","!");

        str = str.replace("Would"," ");

        str = str.replace("I","You");

        System.out.println(str);
    }

}