[appA] Replacing inner class ActionListener with a method that does the same... (2d956c25) · Commits · examples / Head First Java 3rd Edition

src/main/java/appA/BeatBoxFinal.java

+25 −35

Changes for src/main/java/appA/BeatBoxFinal.java: 25 added lines, 35 removed lines.
Original line number	Diff line number	Diff line
		@@ -4,7 +4,6 @@ import javax.sound.midi.*;
		import javax.swing.*;
		import javax.swing.event.*;
		import java.awt.*;
		import java.awt.event.*;
		import java.io.*;
		import java.net.Socket;
		import java.util.*;
		@@ -78,7 +77,7 @@ public class BeatBoxFinal {
		buttonBox.add(downTempo);

		JButton sendIt = new JButton("sendIt");
		sendIt.addActionListener(new MySendListener());
		sendIt.addActionListener(e -> sendMessageAndTracks());
		buttonBox.add(sendIt);

		userMessage = new JTextArea();
		@@ -138,7 +137,7 @@ public class BeatBoxFinal {
		}
		}

		public void buildTrackAndStart() {
		private void buildTrackAndStart() {
		ArrayList<Integer> trackList; // this will hold the instruments for each
		sequence.deleteTrack(track);
		track = sequence.createTrack();
		@@ -172,9 +171,7 @@ public class BeatBoxFinal {
		sequencer.setTempoFactor(tempoFactor * tempoMultiplier);
		}

		public class MySendListener implements ActionListener {
		public void actionPerformed(ActionEvent a) {
		// make an array of just the STATE of the checkboxes
		private void sendMessageAndTracks() {
		boolean[] checkboxState = new boolean[256];
		for (int i = 0; i < 256; i++) {
		JCheckBox check = checkboxList.get(i);
		@@ -191,15 +188,14 @@ public class BeatBoxFinal {
		}
		userMessage.setText("");
		}
		}

		public class MyListSelectionListener implements ListSelectionListener {
		public void valueChanged(ListSelectionEvent le) {
		if (!le.getValueIsAdjusting()) {
		public void valueChanged(ListSelectionEvent lse) {
		if (!lse.getValueIsAdjusting()) {
		String selected = incomingList.getSelectedValue();
		if (selected != null) {
		// now go to the map, and change the sequence
		boolean[] selectedState = (boolean[]) otherSeqsMap.get(selected);
		boolean[] selectedState = otherSeqsMap.get(selected);
		changeSequence(selectedState);
		sequencer.stop();
		buildTrackAndStart();
		@@ -208,28 +204,7 @@ public class BeatBoxFinal {
		}
		}

		public class RemoteReader implements Runnable {
		boolean[] checkboxState = null;
		Object obj = null;

		public void run() {
		try {
		while ((obj = in.readObject()) != null) {
		System.out.println("got an object from server");
		System.out.println(obj.getClass());
		String nameToShow = (String) obj;
		checkboxState = (boolean[]) in.readObject();
		otherSeqsMap.put(nameToShow, checkboxState);
		listVector.add(nameToShow);
		incomingList.setListData(listVector);
		}
		} catch (Exception ex) {
		ex.printStackTrace();
		}
		}
		}

		public void changeSequence(boolean[] checkboxState) {
		private void changeSequence(boolean[] checkboxState) {
		for (int i = 0; i < 256; i++) {
		JCheckBox check = checkboxList.get(i);
		check.setSelected(checkboxState[i]);
		@@ -258,11 +233,26 @@ public class BeatBoxFinal {
		return event;
		}

		public class RemoteReader implements Runnable {
		public void run() {
		try {
		Object obj;
		while ((obj = in.readObject()) != null) {
		System.out.println("got an object from server");
		System.out.println(obj.getClass());
		String nameToShow = (String) obj;
		boolean[] checkboxState = (boolean[]) in.readObject();
		otherSeqsMap.put(nameToShow, checkboxState);
		listVector.add(nameToShow);
		incomingList.setListData(listVector);
		}
		} catch (Exception e) {
		e.printStackTrace();
		}
		}
		}




		}