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OOAD Interview Questions
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If a method definition has been specified in class , its base class , and the interface which the class is implementing, which definition will be picked if we try to access it using interface reference and class object?

 537

What is difference between encapsulation and abstraction?

 562

Difference between encapsulation and data hiding ?

 503

Difference between abstraction and implementation hiding ?

 565

What are the features of encapsulation ?

 555

Difference between composition and inheritance ?

 544

Are constructors inherited? Can a subclass call the parent's class constructor? When?

 554

Can we reduce the visibility of the inherited or overridden method ?

 596

Which of the following is tightly bound ? Inheritance or composition ?

 1 992

Does a class inherit the constructor of its super class?

 511

How many methods do u implement if implement the serializable interface?

 530

What does the “abstract” keyword mean in front of a method? A class?

 509

How many methods are there in the externalizable interface?

 546

What interface must an object implement before it can be written to a stream as an object?

 595

What does it mean that a method or class is abstract?

 506

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Un-Answered Questions { OOAD }

What are the various types of constructors?

600

What is the main advantage of using inheritance?

561

Explain the rationale behind object oriented concepts?

585

What is the best tool for modeling and ORM framework

547

Define modularity?

649




What's the order of call of constructors in inheritiance?

574

What is Polymorphism, overloading, overriding and virtual?

581

What is the practical implementation of inner classes?

518

Does a class inherit the constructor of its super class?

511

Why is OOP good?

564

What is overriding?

598

What are extrinsic and intrinsic connections in object-oriented programming?

539

What are abstract functions? Why are they used?

550

Can an interface implement or extend another interface?

552

What are the interfaces you used in beans?

503

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