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

OOAD Interview Questions

Questions Answers Views Company eMail

Can you create an instance of an abstract class?

1029

What are abstract methods?

1051

Can you create an instance for an abstract class?

1005

Do structs support inheritance?

1007

What is the main advantage of using inheritance?

1126

What is the base type from which all structs inherit directly?

975

Classes and structs support inheritance. Is this statement true or false?

1046

How do you prevent a class from being inherited by another class?

1036

What is virtual multiple inheritance?

1057

Write a note about inheritance?

978

What is the need of multiple inheritance?

1124

Explain the concept of multiple inheritance (virtual inheritance). Write about its advantages and disadvantages?

1067

Describe inheritance and non-inheritance of a derived class?

982

Why do we separate interface from implementation?

1060

Define a good interface?

1038

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Un-Answered Questions { OOAD }

Explain what you understand by function overloading.

1018

What is an interface?

1068

What is operator overloading and polymorphism?

1084

If a method definition has been specified in the 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?

1018

What are the main features of oops?

1158

What is the function of messaging metaphor?

1070

What if we override the conflicting method in the class?

1001

Are constructors inherited? Can a subclass call the parent's class constructor? When?

1043

Explain about a class?

1074

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

1118

What is the significance of encapsulation?

1060

Why is java not fully objective oriented?

1115

Explain the mechanism of composition?

1113

Does a class inherit the constructor of its super class?

984

Which keyword can be used for overloading?

1035

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