java+sql2005调试时苦恼的问题
这是登陆的界面代码，在数据库的用户表比对账户密码登录，但是我按了确定按钮却无法进入主界面，sql已经确定成功连接到了，然后下面是提示的异常，请问高手我的登陆部分代码有问题么，谢谢啦



********欢迎使用实习管理系统**********
Exception in thread "AWT-EventQueue-0" java.lang.Error: Unresolved compilation problem: 
Syntax error, insert "Finally" to complete Statement

at JavaSql.actionPerformed(JavaSql.java:580)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.Component.processMouseEvent(Component.java:6216)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
at java.awt.Component.processEvent(Component.java:5981)
at java.awt.Container.processEvent(Container.java:2041)
at java.awt.Component.dispatchEventImpl(Component.java:4583)
at java.awt.Container.dispatchEventImpl(Container.java:2099)
at java.awt.Component.dispatchEvent(Component.java:4413)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4556)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4220)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4150)
at java.awt.Container.dispatchEventImpl(Container.java:2085)
at java.awt.Window.dispatchEventImpl(Window.java:2475)
at java.awt.Component.dispatchEvent(Component.java:4413)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)











这是登录的代码部分


public void actionPerformed(ActionEvent e){ //当登录界面的确定按钮被点击时
 
if(e.getSource()==quedin)
try{ //对输入的管理员号和密码进行验证
String zh=t2.getText();
String zh1=t4.getText();
Connection c=DriverManager.getConnection("jdbc:odbc:studentdatabase");
Statement a=c.createStatement();
ResultSet mm=a.executeQuery("select * from users where account='"+zh+"'");
ResultSet ming=a.executeQuery("select * from users where code='"+zh1+"'");
if(ming.equals(zh1)||mm.equals(zh))
{ 
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //验证通过,则调用zhujiemian()方法
this.setSize(640,480);
this.setLocation(200,200);
this.setVisible(true);
zhujiemian();  
  ((JComponent) this.getContentPane()).setOpaque(false); //主界面的背景图片
  java.net.URL url = JavaSql.class.getResource("111.jpg");
ImageIcon img = new ImageIcon(url);
JLabel background = new JLabel(img);
this.getLayeredPane().add(background, new Integer(Integer.MIN_VALUE));
background.setBounds(0, 0, img.getIconWidth(), img.getIconHeight());
denglu.setVisible(false);
} else{ JOptionPane.showMessageDialog( null ,"密码输入错误！" ) ; }
//验证失败，弹出错误的提示！  
}
 
else{ JOptionPane.showMessageDialog( null ,"学号输入错误！" ) ;