What is virtual Function.

1 Answers   Wipro,

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why to use operator overloading

3 Answers  

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IS IT NECESSARY TO INITIALIZE VARIABLE? WHAT IF THE INSTANCE VARIABLE IS DECLARED final ? IS IT NECESSARY TO INITIALIZE THE final VARIABLE AT THE TIME OF THEIR DECLARATION?

0 Answers  

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When is it necessary to use member-wise initialization list in C++?

2 Answers   Adobe,

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what is oops

4 Answers   NIIT,

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write a program to find 2 power of a 5digit number with out using big int and exponent ?

0 Answers  

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what is the abstract class,interface ,its difference with a programatic eg.? hi,recently i went for an interview they ask me what is abstract class ,interface and its difference I said abstract class contain abstact method ,abstract method is a method with no body.Abstract class cannot be instantiated.Abstract class is a base class it required derived class for the implementation of method. Interface is a syntactical contract that all derived class should follow it define properties ,method,events which are known as member of interface. Then They asked me what is the difference between them. I said abstract class interface 1.abstact class can implement method 1.interface cant 2.abstact class can contain constructor, 2.interface cant destructor 3.abstract class cannot support multiple 3.interface support inheritance etc Then they said some different answer I said dont no. Then they ask me when i should make abstract class for an project and when i should make interface. I said if suppose there is two class which must be having method with different logic then we sholud make abstract class. and if suppose we have two class having method .with different logic then we can make interface . Am i correct with my explaination.if not correct me .please provide me that when should we create abstract class and interface and what is difference .please help me

1 Answers  

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What is polymorphism ? Explain with examples

8 Answers   Ness Technologies,

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What is overloading and its types?

0 Answers  

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Can we create object of abstract class?

0 Answers  

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what does exactly the linker do?

1 Answers  

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Which is the best institute in hyderabad for C/C++ and it also has fast track course structure.

13 Answers   Wipro,

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