JAVA Mostly Asked Questions #3

What is the mapping mechanism used by java to identify IDL language?
What is serializable interface?
What is the use of interface?
Why is java not fully objective oriented?
Why does java not support multiple inheritance?
What is the root class for all java classes?
What is polymorphism?
Suppose if we have a variable 'I' in run method, if I can create one or more thread each thread will
occupy a separate copy or same variable will be shared?
What are virtual functions?
Write down how will you create a Binary tree?
What are the traverses in binary tree?
Write a program for recursive traverse?
What are session variable in servlets?
What is client server computing?
What is constructor and virtual function? Can we call a virtual function in a constructor?
Why do we use oops concepts? What is its advantage?
What is middleware? What is the functionality of web server?
Why is java not 100% pure oops?
When will you use an interface and abstract class?
What is the exact difference in between Unicast and Multicast object? Where will it be used?