package swingExamples;

import javax.swing.JOptionPane;

public class TriviaGame1
{
  public static void main(String[] args)
  {
    boolean playAgain = true;
    while (playAgain)
    {
      playAgain = play();
    }
  }
  
  private static boolean play()
  {
    int score = 0;
    String[] choices = null;
    int answer = -1;
    int selection = JOptionPane.CLOSED_OPTION;
    
    // Questions 1 through 3...
    
    // Question 4 for sports
    choices = new String[]
    {
      "USC", "Notre Dame", "North Carolina"
    };
    answer = 1; // I don't know, so this is random...
    selection = JOptionPane.showOptionDialog(
        null,
        "\nWhich team broke UCLA basketball's " +
        "\n88 game win streak?",
        "Question 4 of 5",
        JOptionPane.DEFAULT_OPTION,
        JOptionPane.QUESTION_MESSAGE,
        null,
        choices,
        choices[0]
        );
    if (selection == answer)
    {
      score++;
    }
    
    // Questions 5 on...
    
    int response = JOptionPane.showConfirmDialog(
        null,
        "Your score was " + score +
        "\n\nDo you want to play again?",
        "Score",
        JOptionPane.YES_NO_OPTION);
    boolean playAgain = false;
    if (response == JOptionPane.YES_OPTION)
    {
      playAgain = true;
    }
    return playAgain;
  }
}

package swingExamples;

import java.awt.BorderLayout;
import java.awt.GridLayout;

import javax.swing.ButtonGroup;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JTextArea;

public class TriviaGame2
{
  public static void main(String[] args)
  {
    boolean playAgain = true;
    while (playAgain)
    {
      playAgain = play();
    }
  }
  
  private static boolean play()
  {
    int score = 0;
    JRadioButton[] choices = null;
    int answer = -1;
    int selection = -1;
    
    // Questions 1 through 3...
    
    // Question 4 for sports
    choices = new JRadioButton[]
    {
      new JRadioButton("USC"),
      new JRadioButton("Notre Dame"),
      new JRadioButton("North Carolina")
    };
    answer = 1; // I don't know, so this is random...
    OptionsPanel optionsPanel =
        new OptionsPanel(
        "Which team broke UCLA basketball's " +
        "\n88 game win streak?",
        choices);
    JOptionPane.showOptionDialog(
        null,
        optionsPanel,
        "Question 4 of 5",
        JOptionPane.DEFAULT_OPTION,
        JOptionPane.QUESTION_MESSAGE,
        null,
        null,
        null
        );
    selection = optionsPanel.getSelectedOption();
    if (selection == answer)
    {
      score++;
    }
    
    // Questions 5 on...
    
    int response = JOptionPane.showConfirmDialog(
        null,
        "Your score was " + score +
        "\n\nDo you want to play again?",
        "Score",
        JOptionPane.YES_NO_OPTION);
    boolean playAgain = false;
    if (response == JOptionPane.YES_OPTION)
    {
      playAgain = true;
    }
    return playAgain;
  }
}

class OptionsPanel extends JPanel
{
  public OptionsPanel(String question, JRadioButton[] buttons)
  {
    setLayout(new BorderLayout());
    JTextArea questionArea = new JTextArea(question);
    questionArea.setEditable(false);
    questionArea.setBackground(getBackground());
    add(questionArea, BorderLayout.NORTH);
    JPanel answersPanel = new JPanel();
    answersPanel.setLayout(new GridLayout(buttons.length, 1));
    add(answersPanel, BorderLayout.CENTER);
    for (int i = 0; i < buttons.length; i++)
    {
      if (i == 0)
      {
        buttons[i].setSelected(true);
      }
      answersPanel.add(buttons[i]);
      m_group.add(buttons[i]);
    }
    m_buttons = buttons;
  }
  
  public int getSelectedOption()
  {
    for (int i = 0; i < m_buttons.length; i++)
    {
      if (m_buttons[i].isSelected())
      {
        return i;
      }
    }
    return -1; // Should never happen
  }
  
  private ButtonGroup m_group = new ButtonGroup();
  private JRadioButton[] m_buttons;
}