javac疑问

D:\j2sdk1.4.0\exec>javac jdbc.java
jdbc.java:8: '{' expected
class GUI extends Frame implements Action Listener
                                          ^
jdbc.java:8: cannot resolve symbol
symbol  : class Action
location: class GUI
class GUI extends Frame implements Action Listener
                                   ^
2 errors执行时出现这2种错误，还望赐教。