Hi Sameera,
Here is another workaround..
Use AWT graphics object and create a button on ur own. I mean instead of using JButton, create a round figure with bevel effect which will look similar to a JButton and then using MouseMove and mosueClick method and verifying the co-ordinates , u can simulate the click action.
this will give you 100% round button without any invisible square areas ..
if you liked this and want to have more details.mail me at
amitgoel1287@yahoo.com