在java中,用window builder 绘制的图形界面中,表格如何出现在图形界面上

 1 package Test;
 2 import java.awt.EventQueue;
 3 import java.awt.event.WindowAdapter;
 4 import java.awt.event.WindowEvent;
 5 import javax.swing.JFrame;
 6 import javax.swing.JScrollPane;
 7 import javax.swing.JTable;
 8 import javax.swing.JButton;
 9 import java.awt.event.ActionListener;
10 import java.awt.event.ActionEvent;
11 public class Demo {
12     private JFrame frame;
13     private JTable table;
14     private JScrollPane scrollPane;
15     public static void main(String[] args) {
16         EventQueue.invokeLater(new Runnable() {
17             public void run() {
18                 try {
19                     Demo window = new Demo();
20                     window.frame.setVisible(true);
21                 } catch (Exception e) {
22                     e.printStackTrace();
23                 }
24             }
25         });
26     }
27     public Demo() {
28         initialize();
29     }
30     private void initialize() {
31         frame = new JFrame();
32         frame.setBounds(100, 100, 582, 437);
33         frame.getContentPane().setLayout(null);
34         scrollPane = new JScrollPane();
35         scrollPane.setBounds(14, 13, 536, 337);
36         frame.getContentPane().add(scrollPane);
37         JButton button = new JButton("u67E5u627E"); // 查找
38         button.addActionListener(new ActionListener() {
39             public void actionPerformed(ActionEvent e) {
40                 Demo1 s = new Demo1();
41                 try {
42                     if (table != null) {// 先判断表模型是否为空,如果不是则先清除表
43                         JFrame f = new JFrame();
44                         f.remove(table);
45                     }
46                     table = s.search();// 表赋值
47                     table.setAutoCreateRowSorter(true);
48                     scrollPane.setViewportView(table);// 添加滚动条
49                 } catch (Exception ex) {
50                 }
51             }
52         });
53         button.setBounds(260, 366, 63, 23);
54         frame.getContentPane().add(button);
55         frame.addWindowListener(new WindowAdapter() {
56             @Override
57             public void windowClosed(WindowEvent e) {
58                 frame.dispose();
59             }
60         });
61         frame.setVisible(true);
62     }
63 }

 1 package Test;
 2 
 3 import java.awt.Color;
 4 import javax.swing.*;
 5 
 6 class Demo1 {
 7     private String[] columnNames = { "Planet", "Radius", "Moons", "Gaseous", "Color" };
 8     private Object[][] cells = { { "Mercury", 2440.0, 0, false, Color.YELLOW },
 9             { "Venus", 6052.0, 0, false, Color.YELLOW }, { "Earth", 6378.0, 1, false, Color.BLUE },
10             { "Mars", 3397.0, 2, false, Color.RED }, { "Jupiter", 71492.0, 16, true, Color.ORANGE },
11             { "Saturn", 60268.0, 18, true, Color.ORANGE }, { "Uranus", 25559.0, 17, true, Color.BLUE },
12             { "Neptune", 24766.0, 8, true, Color.BLUE }, { "Pluto", 1137.0, 1, false, Color.BLACK } };
13 
14     public JTable search() {
15         JTable JTable = new JTable(cells, columnNames);// 创建表格
16         return JTable;
17     }
18 }

在Demo.java文件中,图形界面由window builder绘制,并且调用Demo1.java中的方法!

在Demo1.java中借鉴了"java核心技术" 卷二第九版介绍表格部分的部分代码!