import java.awt.*;

 import javax.swing.*;

 public class BeatBox {

     JFrame theFrame;

     JPanel mainPanel;

     String[] instrumentNames = {"Bass Drum", "Closed Hi-Hat",

                                 "Open Hi-Hat", "Acoustic Snare",

                                 "Crash Cymbal", "Hand Clap",

                                 "High Tom", "Hi Bongo",

                                 "Maracas", "Whistle",

                                 "Low Conga", "Cowbell",

                                 "Vibraslap", "Low-mid Tom",

                                 "High Agogo", "Open Hi Conga"};

     public static void main(String[] args) {

         new BeatBox().buildGUI();

     }

     public void buildGUI() {

         theFrame = new JFrame("Cyber BeatBox");

         theFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

         JPanel background = new JPanel(new BorderLayout());

         background.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));

         Box buttonBox = new Box(BoxLayout.Y_AXIS);

         JButton start = new JButton("Start");

         buttonBox.add(start);

         JButton stop = new JButton("Stop");

         buttonBox.add(stop);

         JButton upTempo = new JButton("Tempo Up");

         buttonBox.add(upTempo);

         JButton downTempo = new JButton("Tempo Down");

         buttonBox.add(downTempo);

         background.add(BorderLayout.EAST, buttonBox);

         Box nameBox = new Box(BoxLayout.Y_AXIS);

         for (String instrument: instrumentNames) {

             nameBox.add(new Label(instrument));

         }

         background.add(BorderLayout.WEST, nameBox);

         GridLayout grid = new GridLayout(16, 16);

         mainPanel = new JPanel(grid);

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

             JCheckBox c = new JCheckBox();

             c.setSelected(false);

             mainPanel.add(c);

         }

         background.add(BorderLayout.CENTER, mainPanel);

         theFrame.setContentPane(background);

         theFrame.setBounds(50, 50, 300, 300);

         theFrame.pack();

         theFrame.setVisible(true);

     }

 }