Add handler to component which added in runtime inJFrame class?

hi I was .Net coder and I am new in java . Question is : why I can not implement MouseListener and etc. to my JFrame extended class?

if I work on JPane form in NetBeans ,and if I wanna add a component runtime, how can I handle that component events if I can not implement JFrame class

pls Help.. Thanks

[324 byte] By [cutEmrea] at [2007-10-2 21:19:03]