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

OOAD Interview Questions

Questions Answers Views Company eMail

Explain about the analysis phase?

988

Can an interface contain fields?

987

What is the difference between class inheritance and interface inheritance?

1098

Can an interface inherit from another interface?

1020

Can you create an instance of an interface?

1057

If a class inherits an interface, what are the 2 options available for that class?

949

A class inherits from 2 interfaces and both the interfaces have the same method name as shown below. How should the class implement the drive method for both car and bus interface?

968

What do you mean by "explicitly implemeting an interface". Give an example?

1018

Is it possible to create partial structs, interfaces and methods?

946

Can different parts of a partial class inherit from different interfaces?

981

What is the default access modifier for a class,struct and an interface declared directly with a namespace?

971

What is the difference between an interface and abstract class?

1119

What is an abstract property. Give an example?

946

Can you use virtual, override or abstract keywords on an accessor of a static property?

1004

What is the difference between a virtual method and an abstract method?

938

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Un-Answered Questions { OOAD }

Difference between composition and inheritance ?

970

Can you give some examples of tokens?

1063

How many instances can be created for an abstract class?

956

Can different parts of a partial class inherit from different interfaces?

981

Is @functionalinterface annotation mandatory to define a functional interface? What is the use of @functionalinterface annotation? Why do we need functional interfaces in java?

1158

What is the significance of encapsulation?

1004

What are virtual functions, base class pointer, derived class pointer, biding references?

983

What is meant by overloading functions and operators?

1067

What is an interface?

1029

Describe inheritance and non-inheritance of a derived class?

948

What do you mean by polymorphism?

1045

What are the rules to define a functional interface?

1055

Can you call the base class method without creating an instance?

1092

Name some languages which have object oriented language and characteristics?

1001

Which oops concept is used as reuse mechanism?

3532

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