[App A] Cleanup of BeatBoxFinal - removing unused inner class, replacing some...

import javax.swing.*;

import javax.swing.event.ListSelectionEvent;

import javax.swing.event.ListSelectionListener;

import java.awt.*;

import java.awt.BorderLayout;

import java.awt.GridLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.io.ObjectInputStream;

import java.io.ObjectOutputStream;

import java.net.Socket;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.Iterator;

import java.util.Vector;

import java.util.*;

public class BeatBoxFinal {

  private JList<String> incomingList;

  private Sequencer sequencer;

  private Sequence sequence;

  private final Sequence mySequence = null;

  private Track track;

  String[] instrumentNames = {"Bass Drum", "Closed Hi-Hat", "Open Hi-Hat", "Acoustic Snare", "Crash Cymbal",

  }

  public void buildTrackAndStart() {

    ArrayList<Integer> trackList; // this will hold the instruments for each

    List<Integer> trackList; // this will hold the instruments for each

    sequence.deleteTrack(track);

    track = sequence.createTrack();

    }

  }

  public class MyPlayMineListener implements ActionListener {

    public void actionPerformed(ActionEvent a) {

      if (mySequence != null) {

        sequence = mySequence;

      }

    }

  }

  public void changeSequence(boolean[] checkboxState) {

    for (int i = 0; i < 256; i++) {

      JCheckBox check = checkboxList.get(i);

    }

  }

  public void makeTracks(ArrayList<Integer> list) {

  public void makeTracks(List<Integer> list) {

    Iterator<Integer> it = list.iterator();

    for (int i = 0; i < 16; i++) {

      Integer num = it.next();

      if (num != null) {

        track.add(makeEvent(144, 9, num, 100, i));

        track.add(makeEvent(128, 9, num, 100, i + 1));

        track.add(makeEvent(ShortMessage.NOTE_ON, 9, num, 100, i));

        track.add(makeEvent(ShortMessage.NOTE_OFF, 9, num, 100, i + 1));

      }

    }

  }

  public MidiEvent makeEvent(int comd, int chan, int one, int two, int tick) {

  public MidiEvent makeEvent(int command, int channel, int one, int two, int tick) {

    MidiEvent event = null;

    try {

      ShortMessage a = new ShortMessage();

      a.setMessage(comd, chan, one, two);

      event = new MidiEvent(a, tick);

    } catch (Exception ignored) {

      ShortMessage midiMessage = new ShortMessage(command, channel, one, two);

      event = new MidiEvent(midiMessage, tick);

    } catch (InvalidMidiDataException ignored) {

    }

    return event;

  }