[Ch16] Initial code from book

package ch16;

import java.io.*;

class DungeonGame implements Serializable {

  public int x = 3;

  transient long y = 4;

  private short z = 5;

  int getX() {

    return x;

  }

  long getY() {

    return y;

  }

  short getZ() {

    return z;

  }

}

class DungeonTest {

  public static void main(String [] args) {

    DungeonGame d = new DungeonGame();

    System.out.println(d.getX() + d.getY() + d.getZ());

    try {

      FileOutputStream fos = new FileOutputStream("dg.ser");

      ObjectOutputStream oos = new ObjectOutputStream(fos);

      oos.writeObject(d);

      oos.close();

      FileInputStream fis = new FileInputStream("dg.ser");

      ObjectInputStream ois = new ObjectInputStream(fis);

      d = (DungeonGame) ois.readObject();

      ois.close(); 

    } catch (Exception e) {

      e.printStackTrace();

    }

    System.out.println(d.getX() + d.getY() + d.getZ());

  }

}

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package ch16;

import java.nio.file.*;

public class Install {

  public static void main(String[] args) {  

    try {  

      Path myPath = Paths.get("MyApp");

      Path myPath2 = Paths.get("MyApp", "media");

      Path myPath3 = Paths.get("MyApp", "source");

      Path mySource = Paths.get("MyApp.class");

      Path myMedia = Paths.get("MyMedia.jpeg");

      Files.createDirectory(myPath);

      Files.createDirectory(myPath2);

      Files.createDirectory(myPath3);

      Files.move(mySource, myPath3.resolve(mySource.getFileName()));

      Files.move(myMedia, myPath2.resolve(myMedia.getFileName()));

    } catch(Exception e) { System.out.println("got an nio exc"); }

  }

}

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  }

  public int getQuestion() {

  public String getQuestion() {

    return 0;

  }

  public int getAnswer() {

  public String getAnswer() {

    return 0;

  }

}

package ch16;

import java.util.*;

import java.awt.event.*;

import java.io.File;

import javax.swing.*;

import java.awt.*;

import java.io.*;

public class QuizCardPlayer {

    public void go() {

        // build and display gui

  private JTextArea display;

  private JTextArea answer;

  private ArrayList<QuizCard> cardList;

  private QuizCard currentCard;

  private int currentCardIndex;

  private JFrame frame;

  private JButton nextButton;

  private boolean isShowAnswer;

  public static void main (String[] args) {

    QuizCardPlayer reader = new QuizCardPlayer();

    reader.go();

  }

    class NextCardListener implements ActionListener {

  public void go() {

    // build gui

    frame = new JFrame("Quiz Card Player");

    JPanel mainPanel = new JPanel();

    Font bigFont = new Font("sanserif", Font.BOLD, 24);

    display = new JTextArea(10,20);

    display.setFont(bigFont);

    display.setLineWrap(true);

    display.setEditable(false);

    JScrollPane qScroller = new JScrollPane(display);

    qScroller.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);

    qScroller.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);

    nextButton = new JButton("Show Question");

    mainPanel.add(qScroller);

    mainPanel.add(nextButton);

    nextButton.addActionListener(new NextCardListener());

    JMenuBar menuBar = new JMenuBar();

    JMenu fileMenu = new JMenu("File");

    JMenuItem loadMenuItem = new JMenuItem("Load card set");

    loadMenuItem.addActionListener(new OpenMenuListener());

    fileMenu.add(loadMenuItem);

    menuBar.add(fileMenu);

    frame.setJMenuBar(menuBar);

    frame.getContentPane().add(BorderLayout.CENTER, mainPanel);

    frame.setSize(640,500);

    frame.setVisible(true);

  } // close go

  public 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

      if (isShowAnswer) {

        // show the answer because they’ve seen the question

        display.setText(currentCard.getAnswer());

        nextButton.setText("Next Card");

        isShowAnswer = false;

      } else {

        // show the next question

        if (currentCardIndex < cardList.size()) {

          showNextCard();

        } else {

          // there are no more cards!

          display.setText("That was last card");

          nextButton.setEnabled(false);

        }

      }

    }

  }

     class OpenMenuListener implements ActionListener {

  public 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

      JFileChooser fileOpen = new JFileChooser();

      fileOpen.showOpenDialog(frame);

      loadFile(fileOpen.getSelectedFile());

    }

  }

  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

        // and tells the makeCard() method to make a new card out of the line

       // (one line in the file holds both the question and answer, separated by a "/")

    cardList = new ArrayList<QuizCard>();

    try {

      BufferedReader reader = new BufferedReader(new FileReader(file));

      String line = null;

      while ((line = reader.readLine()) != null) {

        makeCard(line);

      }

      reader.close();

    } catch(Exception ex) {

      System.out.println("couldn’t read the card file");

      ex.printStackTrace();

    }

    // now time to start by showing the first card     

    showNextCard();

  }

  private void makeCard(String lineToParse) {

         // called by the loadFile method, takes a line from the text file

         // and parses into two pieces—question and answer—and creates a new QuizCard

         // and adds it to the ArrayList called CardList

    String[] result = lineToParse.split("/");

    QuizCard card = new QuizCard(result[0], result[1]);

    cardList.add(card);

    System.out.println("made a card");

  }

  private void showNextCard() {

    currentCard = cardList.get(currentCardIndex);

    currentCardIndex++;

    display.setText(currentCard.getQuestion());

    nextButton.setText("Show Answer");

    isShowAnswer = true;

  }

} // close class

import java.io.*;

public class Box implements Serializable {

public class Square implements Serializable {

public static void main (String[] args) {

      Box myBox = new Box();

      Square myBox = new Square();

      myBox.setWidth(50);

      myBox.setHeight(20);