Quiz Card Player (code outline)

public class QuizCardPlayer {

  public void go() {
     // build and display gui
  }

  class NextCardListener implements ActionListener {
    public void actionPerformed(ActionEvent ev) {
      // if this is a question, show the answer, otherwise show next question
      // set a flag for whether we're viewing a question or answer
    }
  }

  class OpenMenuListener implements ActionListener {
    public void actionPerformed(ActionEvent ev) {
      // bring up a file dialog box
      // let the user navigate to and choose a card set to open
    }
  }

  private void loadFile(File file) {
      // must build an ArrayList of cards, by reading them from a text file
      // called from the OpenMenuListener event handler, reads the file one line at a time