请求解决

2011-04-24  21:25:33

 import java.awt.Frame;
 import java.awt.Panel;
 import java.awt.Label;
  import java.awt.Component;
 import java.awt.TextField;
 import java.awt.BorderLayout;
 import java.awt.GridLayout;
class TestTextField{
     public static void main(String[] args)  {
         Frame f = new Frame("登录界面");
         f.add(new Label("please input in your users'information:"),"North");
         Panel p1 = new Panel();
         p1.setLayout(new BorderLayout());
         Panel p11 = new Panel();
         p11.setLayout(new GridLayout(2,1));
         p11.add(new Label("Users:"));
         p11.add(new Label("password:"));
        
         Panel p12 = new Panel();
         p12.setLayout(new GridLayout(2,1));
         TextField name = new TextField(10);
         TextField password = new TextField(10);
         p12.add(name);
         p12.add(password);
         p1.add(p11,"West");
         p1.add(p12,"Center");
         f.add(p1,"Center");
         f.setSize(200,160);
         f.setLocation(300,200);
         f.setVisible(true);         
}

}

运行后，Exception in thread "main" java.lang.NoClassDefFoundError