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?

948

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

834

What is the use if instanceof keyword?

1096

What is a constructor in class?

1029

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

895

What is bootstrap, extension and system class loader?

943

Can constructors be parameterized?

929

Define exceptions?

876

Can you explain primordial class loader?

868

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

1002

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

1006

What is the practical implementation of inner classes?

902

How do we implement serialization actually?

889

What is serialization? How do we implement serialization actually?

895

What is the difference between oop and sop?

1318

Post New OOAD Questions

Un-Answered Questions { OOAD }

What is static polymorphism?

1094

Explain what is single and multiple inheritance?

934

What does the “abstract” keyword mean in front of a method? A class?

929

Explain about realistic modeling?

916

Explain about Overloading vs Overriding ?

935

What is an abstraction?

877

What is the significance of encapsulation?

943

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

1023

What is the difference between function overloading and over riding?

980

What do you mean by virtual function and virtual classes?

942

Why is class hierarchies managed in object-oriented programming?

922

Explain about the design phase?

952

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

943

Give any criteria when you use an abstract class and an interface?

897

Explain about polymorphism?

980

For More Un-Answered { OOAD } Questions Click Here