If this command line is supplied, then after all of the quiz data is loaded, a simple GUI interface is presented to the user. This GUI interface has the following components:
The user can mark one or more of the answers, then press "Next" to go on to the next question, which is then displayed on the screen along with its associated answers. When the last question is displayed, pressing the "Next" button then brings up a screen listing the question titles associated with the questions that have been asked, and the amount of credit the person received for that question given their answer(s).
You will be extending this GUI in upcoming assignments, so try to design it in a flexible and extensible manner.