What is the use if instanceof keyword?
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Who is an Actor?
What is the diffrence between an abstract class and interface?
What is difference between static and non-static fields of a class?
When do you prefer to use composition than aggregation?
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Differentiate between an abstract class and an interface?
Can encapsulation be called as a security device?
Explain the mechanism of composition?
Difference: Sequence Diagrams, Collaboration Diagrams ?
What is abstraction? How does it differ from encapsulation
What are abstract methods?
Suppose a class acts an Actor in the problem domain, how to represent it in the static model?
What are the features of encapsulation ?