package jfiledemo;import javax.swing.UIManager;import java.awt.*;import javax.swing.JTable;import java.awt.event.ActionEvent;import javax.swing.JTextField;import javax.swing.JScrollPane;import java.awt.event.WindowEvent;import javax.swing.JPanel;import java.io.File;import javax.swing.JFrame;import javax.swing.JButton;public class FileAttr {  private boolean packFrame = false;  ////構造方法  public FileAttr() {    MainFrame frame = new MainFrame();     if (packFrame) {      frame.pack();    }    else {      frame.validate();    }    //居中處理    Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();    Dimension frameSize = frame.getSize();    if (frameSize.height > screenSize.height) {      frameSize.height = screenSize.height;    }    if (frameSize.width > screenSize.width) {      frameSize.width = screenSize.width;    }    frame.setLocation((screenSize.width - frameSize.width) / 2, (screenSize.height - frameSize.height) / 2);    frame.setVisible(true);  }  //Main（）方法  public static void main(String[] args) {   new FileAttr();  }}class MainFrame extends JFrame {  private JPanel contentPane;  private BorderLayout borderLayout1 = new BorderLayout();  private JTextField jTextField1 = new JTextField();  private JScrollPane jScrollPane1 = new JScrollPane();  private JTable jTable1;  private JButton jButton1 = new JButton();  File file;  //構造窗體  public MainFrame() {    enableEvents(AWTEvent.WINDOW_EVENT_MASK);    try {      jbInit();//調用jbInit()方法    }    catch(Exception e) {      e.printStackTrace();    }  }  //部件初始化  private void jbInit() throws Exception  {    contentPane = (JPanel) this.getContentPane();    jTextField1.setText("File or Dir Abstract Path"); //設置文本域的文本    contentPane.setLayout(borderLayout1); //設置布局    this.setSize(new Dimension(394, 164));         //設置尺寸    this.setTitle("JFileDemo");                   //設置標題    jScrollPane1.setAutoscrolls(true);              //自動滾屏    jButton1.setText("View");                    //按鈕名稱    jButton1.addActionListener(new java.awt.event.ActionListener() {      public void actionPerformed(ActionEvent e) {        jButton1_actionPerformed(e);      }    });    contentPane.add(jButton1, BorderLayout.SOUTH);        //加入按鈕    contentPane.add(jTextField1, BorderLayout.NORTH);      //加入文本域    contentPane.add(jScrollPane1, BorderLayout.CENTER);    //加入ScrollPanel  }  //處理窗口事件  protected void processWindowEvent(WindowEvent e) {    super.processWindowEvent(e);    if (e.getID() == WindowEvent.WINDOW_CLOSING) {      System.exit(0);    }  }  Object[] getFileInfoType(){    return new Object[]{"Name","isFile","length","canRead","canWrite","lastMotified","isHidden"};  }  Object[][] getFileInfo(File file){    File theFile = file;    Object[][] data = new Object[1][7];        //用File類的各種方法獲取文件屬性，保存到data數組中    if (!theFile.exists())      return null;    data[0][0] = theFile.getName();    data[0][1] = String.valueOf(theFile.isFile());    data[0][2] = String.valueOf(theFile.length());    data[0][3] = String.valueOf(theFile.canRead());    data[0][4] = String.valueOf(theFile.canWrite());    data[0][5] = String.valueOf(theFile.lastModified());    data[0][6] = String.valueOf(theFile.isHidden());    return data;  }  void jButton1_actionPerformed(ActionEvent e) {    file = new File(this.jTextField1.getText());    this.jTable1 = new JTable(this.getFileInfo(file),this.getFileInfoType());    jScrollPane1.getViewport().add(jTable1, null);  }}