[Ch16] Initial code from book (a99da721) · Commits · examples / Head First Java 3rd Edition

src/main/java/ch16/QuizCard.java

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Changes for src/main/java/ch16/QuizCard.java: 15 added lines, 0 removed lines.
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		package ch16;

		public class QuizCard {
		public QuizCard(String text, String text1) {

		}

		public int getQuestion() {
		return 0;
		}

		public int getAnswer() {
		return 0;
		}
		}

src/main/java/ch16/QuizCardBuilder.java

+111 −11

Changes for src/main/java/ch16/QuizCardBuilder.java: 111 added lines, 11 removed lines.
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		package ch16;

		import javax.swing.*;
		import java.awt.*;
		import java.awt.event.*;
		import java.io.File;
		import java.io.*;
		import java.util.ArrayList;

		public class QuizCardBuilder {

		private JTextArea question;
		private JTextArea answer;
		private ArrayList<QuizCard> cardList;
		private JFrame frame;


		public static void main (String[] args) {
		QuizCardBuilder builder = new QuizCardBuilder();
		builder.go();
		}


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

		frame = new JFrame("Quiz Card Builder");
		JPanel mainPanel = new JPanel();
		Font bigFont = new Font("sanserif", Font.BOLD, 24);
		question = new JTextArea(6,20);
		question.setLineWrap(true);
		question.setWrapStyleWord(true);
		question.setFont(bigFont);

		JScrollPane qScroller = new JScrollPane(question);
		qScroller.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
		qScroller.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);

		answer = new JTextArea(6,20);
		answer.setLineWrap(true);
		answer.setWrapStyleWord(true);
		answer.setFont(bigFont);

		JScrollPane aScroller = new JScrollPane(answer);
		aScroller.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
		aScroller.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);


		JButton nextButton = new JButton("Next Card");

		cardList = new ArrayList<QuizCard>();

		JLabel qLabel = new JLabel("Question:");
		JLabel aLabel = new JLabel("Answer:");

		mainPanel.add(qLabel);
		mainPanel.add(qScroller);
		mainPanel.add(aLabel);
		mainPanel.add(aScroller);
		mainPanel.add(nextButton);
		nextButton.addActionListener(new NextCardListener());
		JMenuBar menuBar = new JMenuBar();
		JMenu fileMenu = new JMenu("File");
		JMenuItem newMenuItem = new JMenuItem("New");

		JMenuItem saveMenuItem = new JMenuItem("Save");
		newMenuItem.addActionListener(new NewMenuListener());

		saveMenuItem.addActionListener(new SaveMenuListener());
		fileMenu.add(newMenuItem);
		fileMenu.add(saveMenuItem);
		menuBar.add(fileMenu);
		frame.setJMenuBar(menuBar);
		frame.getContentPane().add(BorderLayout.CENTER, mainPanel);
		frame.setSize(500,600);
		frame.setVisible(true);
		}

		private class NextCardListener implements ActionListener {
		public class NextCardListener implements ActionListener {
		public void actionPerformed(ActionEvent ev) {
		// add the current card to the list and clear the text areas

		QuizCard card = new QuizCard(question.getText(), answer.getText());
		cardList.add(card);
		clearCard();
		}
		}
		private class SaveMenuListener implements ActionListener {

		public class SaveMenuListener implements ActionListener {
		public void actionPerformed(ActionEvent ev) {
		// bring up a file dialog box
		// let the user name and save the set
		QuizCard card = new QuizCard(question.getText(), answer.getText());
		cardList.add(card);

		JFileChooser fileSave = new JFileChooser();
		fileSave.showSaveDialog(frame);
		saveFile(fileSave.getSelectedFile());
		}
		}
		private class NewMenuListener implements ActionListener {

		public class NewMenuListener implements ActionListener {
		public void actionPerformed(ActionEvent ev) {
		// clear out the card list, and clear out the text areas
		cardList.clear();
		clearCard();
		}
		}

		private void clearCard() {
		question.setText("");
		answer.setText("");
		question.requestFocus();
		}

		private void saveFile(File file) {
		// iterate through the list of cards, and write each one out to a text file
		// in a parseable way (in other words, with clear separations between parts)
		try {
		BufferedWriter writer = new BufferedWriter(new FileWriter(file));

		for(QuizCard card:cardList) {
		writer.write(card.getQuestion() + "/");
		writer.write(card.getAnswer() + "\n");
		}
		writer.close();

		} catch(IOException ex) {
		System.out.println("couldn’t write the cardList out");
		ex.printStackTrace();
		}
		}
		}





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src/main/java/ch16/QuizCardPlayer.java

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+39 −0

Changes for src/main/java/ch16/QuizCardPlayer.java: 39 added lines, 0 removed lines.
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		package ch16;

		import java.awt.event.*;
		import java.io.File;

		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
		// 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 "/")
		}


		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
		}
		}
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src/main/java/ch16/ReadAFile.java

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Changes for src/main/java/ch16/ReadAFile.java: 29 added lines, 0 removed lines.
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		package ch16;

		import java.io.*;

		class ReadAFile {
		public static void main (String[] args) {

		try {
		File myFile = new File("MyText.txt");
		FileReader fileReader = new FileReader(myFile);

		BufferedReader reader = new BufferedReader(fileReader);





		String line = null;

		while ((line = reader.readLine()) != null) {
		System.out.println(line);
		}
		reader.close();

		} catch(Exception ex) {
		ex.printStackTrace();
		}
		}
		}
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