Define a nested class. Explain how it can be useful.

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class X { private: int a; protected: X(){cout<<"X constructor was called"<<endl;} ~X(){cout<<"X destructor was called"<<endl} }; Referring to the code above, which one of the following statements regarding "X" is TRUE? a) X is an abstract class. b) Only subclasses of X may create X objects. c) Instances of X cannot be created. d) X objects can only be created using the default copy constructor. e) Only friends can create instances of X objects.

2 Answers   Quark,

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Why are pointers used?

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What is compilation?

1 Answers   Datamatics, TCS,

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What is static in c++?

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What happens if a pointer is deleted twice?

0 Answers   Flextronics,

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Name the debugging methods that are used to solve problems?

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Can we overload operator in c++?

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Differentiate between a deep copy and a shallow copy?

1 Answers  

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How would you use the functions randomize() and random()?

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What is token c++?

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What is the extraction operator and what does it do?

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