What is the @functionalinterface annotation?
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How to achieve data abstraction?
What is virtual?
Explain about abstraction?
What are inner classes and what is the practical implementation of inner classes?
Name the different creational patterns in object oriented design?
What's the order of call of constructors in inheritiance?
How a program can be structured using the concept of object oriented programming?
What is virtual multiple inheritance?
Can we have default method with same name and signature in the derived interface as the static method in base interface and vice versa?
What is the use of Operator Overloading?
Can we have a default method definition in the interface without specifying the keyword "default"?
Write basic concepts of oops?