[Ch16] BeatBox With Added Lambdas; exercises from the end of the chapter; finally examples (01c12d2f) · Commits · examples / Head First Java 3rd Edition

src/main/java/ch16/BeatBox.java

+9 −24

Changes for src/main/java/ch16/BeatBox.java: 9 added lines, 24 removed lines.
Original line number	Diff line number	Diff line
		@@ -3,7 +3,6 @@ package ch16;
		import javax.sound.midi.*;
		import javax.swing.*;
		import java.awt.*;
		import java.awt.event.*;
		import java.io.*;
		import java.util.ArrayList;

		@@ -52,11 +51,11 @@ public class BeatBox {
		buttonBox.add(downTempo);

		JButton save = new JButton("serializeIt");
		save.addActionListener(new MySendListener());
		save.addActionListener(e -> writeFile());
		buttonBox.add(save);

		JButton restore = new JButton("restore");
		restore.addActionListener(new MyReadInListener());
		restore.addActionListener(e -> readFile());
		buttonBox.add(restore);

		Box nameBox = new Box(BoxLayout.Y_AXIS);
		@@ -167,9 +166,7 @@ public class BeatBox {
		return event;
		}

		public class MySendListener implements ActionListener {

		public void actionPerformed(ActionEvent a) {
		private void writeFile() {
		boolean[] checkboxState = new boolean[256];
		for (int i = 0; i < 256; i++) {
		JCheckBox check = checkboxList.get(i);
		@@ -182,39 +179,27 @@ public class BeatBox {
		FileOutputStream fileStream = new FileOutputStream("Checkbox.ser");
		ObjectOutputStream os = new ObjectOutputStream(fileStream);
		os.writeObject(checkboxState);
		} catch (Exception ex) {
		ex.printStackTrace();
		}
		} catch (Exception e) {
		e.printStackTrace();
		}
		}

		public class MyReadInListener implements ActionListener {

		public void actionPerformed(ActionEvent a) {
		private void readFile() {
		boolean[] checkboxState = null;
		try {
		FileInputStream fileIn = new FileInputStream("Checkbox.ser");
		ObjectInputStream is = new ObjectInputStream(fileIn);
		checkboxState = (boolean[]) is.readObject();

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

		for (int i = 0; i < 256; i++) {
		JCheckBox check = checkboxList.get(i);
		if (checkboxState[i]) {
		check.setSelected(true);
		} else {
		check.setSelected(false);
		}
		check.setSelected(checkboxState[i]);
		}

		sequencer.stop();
		buildTrackAndStart();

		}
		}


		}

src/main/java/ch16/SaveWithFinally.java

0 → 100644

+29 −0

Changes for src/main/java/ch16/SaveWithFinally.java: 29 added lines, 0 removed lines.
Original line number	Diff line number	Diff line
		package ch16;

		import java.io.*;
		import java.util.List;

		public class SaveWithFinally {
		private List<QuizCard> cardList;

		private void saveFile(File file) {
		BufferedWriter writer = null;
		try {
		writer = new BufferedWriter(new FileWriter(file));

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

		} catch (IOException e) {
		System.out.println("Couldn't write the cardList out: " + e.getMessage());
		} finally {
		try {
		writer.close();
		} catch (Exception e) {
		System.out.println("Couldn't close writer: " + e.getMessage());
		}
		}
		}
		}

src/main/java/ch16/SaveWithTWR.java

0 → 100644

+23 −0

Changes for src/main/java/ch16/SaveWithTWR.java: 23 added lines, 0 removed lines.
Original line number	Diff line number	Diff line
		package ch16;

		import java.io.*;
		import java.util.List;

		public class SaveWithTWR {
		private List<QuizCard> cardList;

		private void saveFile(File file) {
		try (BufferedWriter writer =
		new BufferedWriter(new FileWriter(file));
		BufferedReader reader =
		new BufferedReader(new FileReader(file))) {

		for (QuizCard card : cardList) {
		writer.write(card.getQuestion() + "/");
		writer.write(card.getAnswer() + "\n");
		}
		} catch (IOException e) {
		System.out.println("Couldn't write the cardList out: " + e.getMessage());
		}
		}
		}

src/main/java/ch16/DungeonGame.java→src/main/java/ch16/ex/DungeonGame.java

+2 −1

Changes for src/main/java/ch16/ex/DungeonGame.java: 2 added lines, 1 removed line.
Original line number	Diff line number	Diff line
		package ch16;
		package ch16.ex;

		import java.io.*;

		@@ -29,6 +29,7 @@ class DungeonTest {
		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();

src/main/java/ch16/ex/Fragments.java

0 → 100644

+35 −0

Changes for src/main/java/ch16/ex/Fragments.java: 35 added lines, 0 removed lines.
Original line number	Diff line number	Diff line
		package ch16.ex;

		import ch16.GameCharacter;

		import java.io.*;

		public class Fragments {
		void fragment1() {
		// FileReader fileReader = new FileReader();
		// BufferedReader reader = new BufferedReader(fileReader);
		}

		void fragment2() throws IOException {
		FileOutputStream f = new FileOutputStream("Foo.ser");
		ObjectOutputStream os = new ObjectOutputStream(f);
		}

		void fragment3(File file) throws IOException {
		BufferedReader reader = new BufferedReader(new FileReader(file));
		String line;
		while ((line = reader.readLine()) != null) {
		makeCard(line);
		}
		}

		void fragment4() throws IOException, ClassNotFoundException {
		FileOutputStream f = new FileOutputStream("Game.ser");
		// ObjectInputStream is = new ObjectInputStream(f);
		// GameCharacter oneAgain = (GameCharacter) is.readObject();
		}

		private void makeCard(String line) {

		}
		}