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?

1045

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

935

What is the use if instanceof keyword?

1219

What is a constructor in class?

1140

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

988

What is bootstrap, extension and system class loader?

1074

Can constructors be parameterized?

1021

Define exceptions?

981

Can you explain primordial class loader?

962

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

1131

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

1159

What is the practical implementation of inner classes?

1037

How do we implement serialization actually?

985

What is serialization? How do we implement serialization actually?

1031

What is the difference between oop and sop?

1449

Post New OOAD Questions

Un-Answered Questions { OOAD }

What is the difference between an interface and abstract class?

1165

Explain about instance in object oriented programming?

1167

What is the difference between function overloading and over riding?

1083

What are the access modifiers?

1068

Explain the usage of encapsulation?

1059

Difference between abstraction and implementation hiding ?

1139

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

1207

How many methods are there in the serializable interface?

1000

What is the difference between oop and sop?

1449

Explain about a class?

1074

Can we access interface static method using interface references?

1112

What are all the languages which support oop?

1025

What is the function of dynamic typing?

1159

Explain static binding

1054

Which oops concept is used as reuse mechanism?

3582

For More Un-Answered { OOAD } Questions Click Here