Simple Economics Quiz in Java

I have completed most parts of the quiz that is written in Java, but I need someone to make the code more elegant. Need help storing questions and the right answers in a LinkedHashMap to preserve order for example, or in an an ArrayList of objects, where each object stores a question and answer. Also need help adding some methods and at least one class, breaking up the different bits into separate sub-routines. For example, so that I could have a method that just checks whether the answer is valid "t" or "f". I would also like the instructions to be written after each step so that I will understand what is going on. Thank you.