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OOAD Interview Questions
Questions Answers Views Company eMail

Is iterator a class or interface? What is its use?

 527

How many methods are there in the serializable interface?

 539

How to define an interface?

 576

What is the abstract method modifier?

 580

What is meant by “abstract interface”?

 597

Explain the abstract class modifier?

 477

How to define an abstract class?

 582

Can an interface have an inner class?

 605

How does abstraction differ from encapsulation.

 560

What is function override?

 580

What is single and multiple inheritance?

 556

Explain what is single and multiple inheritance?

 540

What is meant by overloading functions and operators?

 570

What is abstraction? How does it differ from encapsulation

 524

Explain what is polymorphism?

 603

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Un-Answered Questions { OOAD }

What are the rules to define a functional interface?

524

Do we require a parameter for constructors?

544

What is the use of finalize method?

573

Can you define OOP and principles of OOP?

565

What is difference between static and non-static fields of a class?

486




Explain serialization and overriding?

628

What is composition? Explain the purpose of composition.

541

Define Destructor?

536

Classes and structs support inheritance. Is this statement true or false?

561

Can you tell something about GDI objects?

593

Can a class in java be inherited from more than one class?

508

What do you mean by polymorphism?

543

What are manipulators?

640

What is the use if instanceof keyword?

573

What is diamond inheritance problem? How java 8 solves this problem?

652

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