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

OOAD Interview Questions

Questions Answers Views Company eMail

What are different ways to create string object?

1202

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

1126

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

What is diamond inheritance problem? How java 8 solves this problem?

1121

What is @functionalinterface?

1061

What is the default access modifier in a class?

1065

What is static and dynamic Binding?

1114

What are all the operators that cannot be overloaded?

1035

What are sealed modifiers?

1113

Define Destructor?

1008

What is the main difference between overloading and overriding?

1161

What is dynamic or run time polymorphism?

1057

What is a pure virtual function?

3 1739

What is an abstraction?

975

What are the various types of constructors?

1090

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Un-Answered Questions { OOAD }

Describe the Diamond problem. Where does this problem occur?

982

Can a class in java be inherited from more than one class?

982

Differences between functional programming and object-oriented programming?

1101

What is meant by “abstract interface”?

1066

Explain what is single and multiple inheritance?

1028

Define modularity?

1128

Why does java not support multiple inheritance?

1118

How can we restrict inheritance for a class so that no class can be inherited from it?

1138

What are extrinsic and intrinsic connections in object-oriented programming?

1107

What do you mean by abstract classes?

1143

Name the different creational patterns in object oriented design?

1039

Explain about multiple inheritance?

1110

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

1118

What is the difference abstract class and interface?

1027

What is static polymorphism?

1173

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