Hi,
As per i know what you should do is when the user clicks on paste you need to read the data in the clipboard and create an image [ImageIcon class,you can use the constructor which takes byte data as parameter] and use the graphichs object [JPanel.getGraphichs()], call the drawImage() method.
you get information about reading from a clip board at the following URL
http://java.sun.com/j2se/1.3/docs/gu...atransfer.html
Hope it gives some start.
Regards,
Rakesh