java学习笔记_BeatBox(GUI部分)

 1 import java.awt.*;
 2 import javax.swing.*;
 3 
 4 public class BeatBox {    
 5     JFrame theFrame;    
 6     JPanel mainPanel;    
 7     String[] instrumentNames = {"Bass Drum", "Closed Hi-Hat",
 8                                 "Open Hi-Hat", "Acoustic Snare",
 9                                 "Crash Cymbal", "Hand Clap",
10                                 "High Tom", "Hi Bongo",
11                                 "Maracas", "Whistle",
12                                 "Low Conga", "Cowbell",
13                                 "Vibraslap", "Low-mid Tom",
14                                 "High Agogo", "Open Hi Conga"};
15                                 
16     public static void main(String[] args) {
17         new BeatBox().buildGUI();
18     }
19     
20     public void buildGUI() {
21         theFrame = new JFrame("Cyber BeatBox");
22         theFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
23         
24         JPanel background = new JPanel(new BorderLayout());
25         background.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
26         
27         Box buttonBox = new Box(BoxLayout.Y_AXIS);
28         
29         JButton start = new JButton("Start");
30         buttonBox.add(start);
31         
32         JButton stop = new JButton("Stop");
33         buttonBox.add(stop);
34         
35         JButton upTempo = new JButton("Tempo Up");
36         buttonBox.add(upTempo);
37         
38         JButton downTempo = new JButton("Tempo Down");
39         buttonBox.add(downTempo);
40         
41         background.add(BorderLayout.EAST, buttonBox);
42         
43         Box nameBox = new Box(BoxLayout.Y_AXIS);
44         for (String instrument: instrumentNames) {
45             nameBox.add(new Label(instrument));
46         }
47         background.add(BorderLayout.WEST, nameBox);
48         
49         GridLayout grid = new GridLayout(16, 16);
50         mainPanel = new JPanel(grid);
51         
52         for (int i = 0; i < 256; i++) {
53             JCheckBox c = new JCheckBox();
54             c.setSelected(false);
55             mainPanel.add(c);
56         }
57         background.add(BorderLayout.CENTER, mainPanel);
58 
59         theFrame.setContentPane(background);
60         theFrame.setBounds(50, 50, 300, 300);
61         theFrame.pack();
62         theFrame.setVisible(true);
63     }
64 }