Hey guys I just learned about this what is called ADT in java, but still I don't quite understand what it is. I tried reading the books several times but still I can't get the concept of what it is.
There is also a keyword 'extend', what is that actually?? There is also the terminology of collection, Set<E>, bag, and List ADT. What is all that about?? Can someone explain it to me very briefly?? Many thanks to those who are willing to help me