package com.soft.test;

 import javax.swing.*;

 import javax.swing.filechooser.*;

 import java.awt.event.*;

 import java.io.FileFilter;

 public class SplashDemo extends JFrame implements ActionListener {

     private JButton jb = null;

     public SplashDemo() {

         jb = new JButton("打开");

         jb.addActionListener(this);

         this.add(jb);

         this.setSize(, );

         this.setResizable(false);

         this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

         this.setVisible(true);

     }

     public static void main(String[] args) {

         SplashDemo s = new SplashDemo();

     }

     public void actionPerformed(ActionEvent e) {

         JFileChooser jf = new JFileChooser();

         jf.setToolTipText("打开");

         FileNameExtensionFilter ff = new FileNameExtensionFilter(

                 "图像文件(jpg/gif)", "jpg", "jpeg", "gif");

         jf.setFileFilter(ff);

         jf.showOpenDialog(this);

     }

 }