表格设置滚动条java java滚动条事件

1 package test;
 2 
 3 import java.awt.Container;
 4 import java.awt.Font;
 5 import java.io.File;
 6 import java.util.EmptyStackException;
 7 import java.util.Iterator;
 8 import java.util.Stack;
 9 
10 import javax.swing.Icon;
11 import javax.swing.ImageIcon;
12 import javax.swing.JButton;
13 import javax.swing.JFrame;
14 import javax.swing.JLabel;
15 import javax.swing.JPanel;
16 import javax.swing.JScrollPane;
17 import javax.swing.JSpinner;
18 import javax.swing.JSplitPane;
19 import javax.swing.JTabbedPane;
20 
21 public class ImplementsDemo {
22     public static void main(String[] args) throws EmptyStackException{
23         JFrame f=new JFrame("Welcome To Earth!");
24         Container cont=f.getContentPane();
25         String picPath="c:"+File.separator+"Users"+File.separator+"Sunboy"+File.separator+"desktop"+File.separator+"课表.png";
26         Icon ico=new ImageIcon(picPath);
27         JPanel pan=new JPanel();
28         JLabel lab=new JLabel(ico);
29         pan.add(lab);
30         JScrollPane scr1=new JScrollPane(pan, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
31         cont.add(scr1);
32         f.setSize(1280,720);
33         f.setLocation(300, 200);
34         f.setVisible(true);
35         
36     }
37     
38 }