How do you know that your class needs a virtual destructor?

5 Answers   Lucent,

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What are references in c++? What is a local reference?

0 Answers  

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What is size of a object of following class? class Foo { public: void foo(){} }

2 Answers   CA,

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What is the use of register keyword with the variables?

0 Answers  

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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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What is the protected keyword used for?

0 Answers  

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Evaluate !(1&&1||1&&0) a) Error b) False c) True

0 Answers  

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Q1 On the screen how do you write the following words? she sells seashells by the seashore (a) all in one line (b) in three lines Q2 Write a program that asks interactively the user’s name and age and responds with Hello name, next year you will be next_age. where next_age is age + 1 Q3 For the different values of n, what is the output? printf(“%x %c %o %d”,n,n,n,n); (a) n = 67 (b) n = 20 (c) n = 128 (d) n = 255 (e) n = 100 Q4 What will be the output of the following program? int main() { char a,b,c; scanf(“%c %c %c”,&a,&b,&c); printf(“a=%c b=%c c=%c”,a,b,c); return 0; } [Note: The user input is:ABC DEF GHI]

1 Answers  

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When we use Abstract Class and when we use Interface?where we will implement in real time?

0 Answers  

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What is function prototyping?

0 Answers  

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write program for palindrome

81 Answers   Amazon, Aricent, CSC, GE, HCL, Infosys, Syntel, Temenos, Wipro,

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How does a C++ structure differ from a C++ class?

0 Answers   NIIT,

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