Hi ganesh pol For the first question, you can click the following linkage to take a look with the answer posted by Thomas Paul for the first one. here and here For the second question, the meaning of loaded dynamically that is related to the class loader? Hope this help
[ June 02, 2005: Message edited by: siu chung man ]
Your original question has been asked many times before. This forum has a great Search tool which you should use. Try entering something like "difference between abstract class and interface". I'm sure you will get a lot of discussions on this topic that will answer your question. If you still need help understanding let us know.
As for your second question, I'm not sure what you mean. Can you give some context? Where did you hear or read the phrase "it is loaded dynamically"? Perhaps more importantly, what does "it" refer to?