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

OOAD Interview Questions

Questions Answers Views Company eMail

What is the difference between function overloading and over riding?

BirlaSoft,

1038

explain the difference between operator overloading and function overloading.

TCS,

997

What are abstract functions? Why are they used?

1001

Describe the Diamond problem. Where does this problem occur?

Tech Mahindra,

932

What is an interface?

1028

What is the difference between class and interface?

1152

Can an interface implement or extend another interface?

1022

What is the benefit of Composition over Inheritance?

1004

What are the rules to define a functional interface?

1054

Is is possible to define our own functional interface?

1053

What is a functional interface? What is sam interface?

1108

Is it possible to provide method implementations in java interfaces? If possible, how do we provide them?

948

Differences between functional programming and object-oriented programming?

1050

What is a static method? Why do we need static methods in java 8 interfaces?

1199

What is multiple inheritance? How java 8 supports multiple inheritance?

1096

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Un-Answered Questions { OOAD }

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

1092

Difference between encapsulation and data hiding ?

900

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

946

What is the difference between an error and an exception?

1083

Can we have a default method definition in the interface without specifying the keyword "default"?

974

What is data encapsulation and what is its significance?

903

What is the use if instanceof keyword? And how do refer to a current instance of object?

941

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

1082

Write basic concepts of oops?

996

what is virtual function and pure virtual function ?

976

What is a constructor in class?

1083

What is the difference between oop and sop?

1392

Can you instantiate an abstract class and what is an inner class?

962

What is constructor and virtual function? Can we call virtual funciton in a constructor?

1013

What is the order of call of constructors in inheritiance?

1021

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