package jfilechooser;import java.awt.*;import java.awt.event.*;import javax.swing.*;import java.io.*;public class Frame1 extends JFrame {  JPanel contentPane;  BorderLayout borderLayout1 = new BorderLayout();  JButton jButton1 = new JButton();  JTextArea jTextArea1 = new JTextArea();  /**Construct the frame*/  public Frame1() {    enableEvents(AWTEvent.WINDOW_EVENT_MASK);    try {      jbInit();    }    catch(Exception e) {      e.printStackTrace();    }  }  /**Component initialization*/  private void jbInit() throws Exception  {    //setIconImage(Toolkit.getDefaultToolkit().createImage(Frame1.class.getResource("[Your Icon]")));    contentPane = (JPanel) this.getContentPane();    jButton1.setText("選擇文件");    jButton1.addActionListener(new java.awt.event.ActionListener() {      public void actionPerformed(ActionEvent e) {        jButton1_actionPerformed(e);      }    });    contentPane.setLayout(borderLayout1);    this.setResizable(false);    this.setSize(new Dimension(299, 268));    this.setTitle("JFileChooser演示程序");    jTextArea1.setEditable(false);    jTextArea1.setLineWrap(true);    contentPane.add(jButton1, BorderLayout.NORTH);    contentPane.add(jTextArea1, BorderLayout.CENTER);  }  /**Overridden so we can exit when window is closed*/  protected void processWindowEvent(WindowEvent e) {    super.processWindowEvent(e);    if (e.getID() == WindowEvent.WINDOW_CLOSING) {      System.exit(0);    }  }  void jButton1_actionPerformed(ActionEvent e) {    JFileChooser fc = new JFileChooser();    fc.setMultiSelectionEnabled(true);    int returnVal = fc.showOpenDialog(this);    File[] selectedFiles;    if(returnVal == JFileChooser.APPROVE_OPTION){      selectedFiles = fc.getSelectedFiles();      jTextArea1.setText("你選擇的文件有：\n");      for(int i=0;i<selectedFiles.length;i++){       jTextArea1.append(selectedFiles[i].getPath()+"\n");      }    }    else        jTextArea1.setText("你選擇的是“取消”");  }}