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

OOPS Interview Questions

Questions Answers Views Company eMail

How is the using() pattern useful? What is IDisposable? How does it support deterministic finalization?

IntraLogic,

1 14450

Contrast OOP and SOA. What are tenets of each?

Siebel Systems, Wipro,

1 17687

why c++ is called OOPS? waht is inherutance? what is compiler?

5 16903

What normal C constructs work differently in C++?

2 5811

Why and when is a virtual destructor needed?

5 16899

Why a "operator=(...)" when there is a copy ctor?

2 6238

what is object slicing?

L&T, Wipro,

9 50290

who is the founder of c++?

Hexaware, ONGC,

15 38981

//what is wrong with the programme?? #include template class dd { first i; public: void set(); void print(); }; void dd< first>:: set() { cin>>i; } void dd< first>::print() { cout<<"\n"<g; g.set(); g.print(); }

1 4405

what is an instance of a class

5 8896

What is a class?

Infosys, TCS, Thylak,

32 33158

What is an object?

HCL,

14 17776

What is the difference between an object and a class?

3 7292

What is the difference between class and structure?

7 11438

What is public, protected, private?

IBS, Satyam,

6 17045

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Un-Answered Questions { OOPS }

explain sub-type and sub class? atleast u have differ it into 4 points?

2314

What is encapsulation selenium?

1003

What is the point of oop?

1185

Can enum be null?

1015

Question: Implement a base class Appointment and derived classes Onetime, Daily, Weekly, and Monthly. An appointment has a description (for example, “see the dentist”) and a date and time. Write a virtual function occurs_on(int year, int month, int day) that checks whether the appointment occurs on that date. For example, for a monthly appointment, you must check whether the day of the month matches. Then fill a vector of Appointment* with a mixture of appointments. Have the user enter a date and print out all appointments that happen on that date.

1332

Explain virtual inheritance?

1199

How oops is better than procedural?

1095

Which is better struts or spring?

1051

What are classes oop?

1019

What are the 4 main oop principles?

1220

What is debug class?what is trace class? What differences are between them? With examples.

2190

What is the difference between encapsulation and polymorphism?

1102

Why is polymorphism important in oop?

1078

What is the main purpose of inheritance law?

1197

What is purpose of inheritance?

1101

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