import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.ButtonGroup;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JRadioButtonMenuItem;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;

/**
 * 程序风格菜单
 * @author junglesong@gmail.com
 *
 */
public class StyleMenu extends JMenu {
  // 程序的主框架
  final JFrame mainFrame;
 
  /**
   * 构造函数
   * @param text:菜单条文字
   * @param frame:程序的主框架
   */
  public StyleMenu(String text,JFrame frame) {
    super(text);
    mainFrame=frame;
    addSubMenuItems();
  }

  /**
   * 添加下级菜单项
   *
   */
  private void addSubMenuItems() {
    // 取得系统当前可用感观数组
    UIManager.LookAndFeelInfo[] arr = UIManager
        .getInstalledLookAndFeels();

    ButtonGroup buttongroup = new ButtonGroup();
    for (int i = 0; i < arr.length; i++) {
      JRadioButtonMenuItem styleMitem = new JRadioButtonMenuItem(
          arr[i].getName(), i == 0);
      final String className = arr[i].getClassName();
     
      // 添加下级菜单项的事件相应
      styleMitem.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
          try {
            UIManager.setLookAndFeel(className);
            SwingUtilities.updateComponentTreeUI(mainFrame);
          } catch (Exception ex) {
            System.out.println("Can't Change Lookandfeel Style to "
                + className);
          }
        }
      });
      buttongroup.add(styleMitem);
      this.add(styleMitem);
    }
  }
}


2.用法如下

  JMenuBar menubar = new JMenuBar();
  mainFrame.setJMenuBar(menubar);
  ......
  menubar.add(Box.createHorizontalGlue());

  JMenu styleMenu = new StyleMenu("Syle", mainFrame);
  menubar.add(styleMenu);
  ......

    String[] headers = {  "No", "Table Name"  };
    Object[][] cellData = null;

    DefaultTableModel model = new DefaultTableModel(cellData, headers) {
      public boolean isCellEditable(int row, int column) {
        // 第N列可以编辑
        /*
         * if (column == N) { return false; }
         */

        // 整个表都不能编辑
        return false;
      }
    };

    table = new JTable(model);

2.菜单的建立
    popupMenu=new JPopupMenu();
   
    tableNameItem=new JMenuItem("");
    selectItem=new JMenuItem("Select SQL");
    insertItem=new JMenuItem("Insert SQL");
    deleteItem=new JMenuItem("Delete SQL");
    updateItem=new JMenuItem("Update SQL");
    hbmItem=new JMenuItem("hbm xml");
    hbmPojoItem=new JMenuItem("Pojo Class");
   
    popupMenu.add(tableNameItem);
    popupMenu.addSeparator();
    popupMenu.add(selectItem);
    popupMenu.add(insertItem);
    popupMenu.add(deleteItem);
    popupMenu.add(updateItem);
    popupMenu.addSeparator();
    popupMenu.add(hbmItem);
    popupMenu.add(hbmPojoItem);

3.菜单的弹出处理
          table.addMouseListener(new MouseAdapter() {
          public void mousePressed(MouseEvent evt) {
              if (evt.isPopupTrigger()) { 
                // 取得右键点击所在行
              int row=evt.getY()/table.getRowHeight();
             
              /**
               * 取得是表名的那一列
               */
              int tableNameColumn=-1;
             
              for(int i=0;i<table.getColumnModel().getColumnCount();i++){
                TableColumn selColumn = table.getColumnModel().getColumn(i);
                String columnHeader=(String)selColumn.getHeaderValue();
               
                if(columnHeader.equals("Table Name")){
                  tableNameColumn=i;
                  break;
                }
              }
             
              /**
               * 取得表名并弹出菜单
               */
              if(tableNameColumn!=-1){
                /**
                 * 修改菜单首条的名称
                 */
                String tableName=(String)table.getValueAt(row,tableNameColumn);
                tableNameItem.setText(tableName);
               
                // 弹出菜单
                popupMenu.show(evt.getComponent(), evt.getX(), evt.getY());
              }
              }
          }
      }
        
4.实现的效果如下: