OOAD Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

OOAD Interview Questions

Questions Answers Views Company eMail

Can you create an instance of an abstract class?

982

What are abstract methods?

995

Can you create an instance for an abstract class?

943

Do structs support inheritance?

960

What is the main advantage of using inheritance?

1077

What is the base type from which all structs inherit directly?

938

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

1003

How do you prevent a class from being inherited by another class?

1000

What is virtual multiple inheritance?

994

Write a note about inheritance?

941

What is the need of multiple inheritance?

1065

Explain the concept of multiple inheritance (virtual inheritance). Write about its advantages and disadvantages?

1011

Describe inheritance and non-inheritance of a derived class?

948

Why do we separate interface from implementation?

1013

Define a good interface?

989

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Un-Answered Questions { OOAD }

Which oops concept is used as reuse mechanism?

3529

Can a class implement two interfaces having default method with same name and signature?

1017

Explain about instance in object oriented programming?

1092

What is the use of interface?

1068

If a method definition has been specified in the 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?

973

Why do we separate interface from implementation?

1013

Explain what you understand by function overloading.

970

What is @functionalinterface?

1002

What is the main advantage of using inheritance?

1077

What are the features of encapsulation ?

989

Describe inheritance and non-inheritance of a derived class?

948

Differences between functional programming and object-oriented programming?

1050

Can you tell something about GDI objects?

991

Explain what is single and multiple inheritance?

988

Explain what is an object?

983

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