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

OOAD Interview Questions

Questions Answers Views Company eMail

What is bootstrap, extension and system class loader? Or can you explain primordial class loader?

1000

What are inner classes and what is the practical implementation of inner classes?

892

What is the use if instanceof keyword?

1158

What is a constructor in class?

1083

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

941

What is bootstrap, extension and system class loader?

1017

Can constructors be parameterized?

980

Define exceptions?

932

Can you explain primordial class loader?

931

What's the main difference between arraylist / hashmap and vector / hashtable?

1073

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

1095

What is the practical implementation of inner classes?

989

How do we implement serialization actually?

939

What is serialization? How do we implement serialization actually?

972

What is the difference between oop and sop?

1392

Post New OOAD Questions

Un-Answered Questions { OOAD }

Explain what you understand by function overloading.

971

What is the benefit of using inheritance?

1039

What is the main difference between a class and an object?

1014

Differentiate between data abstraction and encapsulation.

980

What is static polymorphism?

1141

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

938

Explain the purpose of composition.

1035

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

1018

Why is C not an OOP language?

1028

Define modularity?

1078

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

938

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?

992

Is is possible to define our own functional interface?

1053

Write a program to show the inheritance used in a class.

975

Explain about the analysis phase?

988

For More Un-Answered { OOAD } Questions Click Here