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use case show the flow of the system,to be performed by the actor..
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Is @functionalinterface annotation mandatory to define a functional interface? What is the use of @functionalinterface annotation? Why do we need functional interfaces in java?
What is a subclass?
What is the diffrence between an abstract class and interface?
What is virtual?
What is single and multiple inheritance?
Can an interface have an inner class?
When will you use an interface and abstract class?
Is iterator a class or interface? What is its use?
Define exceptions?
Differentiate between overloading and overriding.
What is the main difference between overloading and overriding?
If a class inherits an interface, what are the 2 options available for that class?
What is multiple inheritance? How java 8 supports multiple inheritance?
What is a pure virtual function?
Why abstraction is important?
