Answer / subhashish sen

Constructor can not be virtual.becoz constuctor is an entity
which initializes the V-table(V-table stores the addresses
of all virtual member functions of a class.)So if we declare
a constructor as virtual then who will inialize V-table for
this constructor??Thats why constructor can never be virual.

Answer / john

virtual constructor is not possible.
This is because v-table is created only after the
constructor is called.

write a c program, using for loop, that accepts and odds two numbers. The output must be the sum and the addens. This should be repeated 5 times while the first number is decremented by one and the second number is incremented by 1.

2 Answers   IBM, Infosys,

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Algorithm in O(2n) Presently we can solve in our hypothetical machine problem instances of size 100 in 1 minute using algorithm A, which is a O(2n). We would like to solve instances of size 200 in 1 minute using algorithm A on a new machine. What is the speed of the new machine should be?

2 Answers   ABC, Qatar University,

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Given a table of the form: Product Sold on A 1/1/1980 B 1/1/1980 C 1/1/1980 A 1/1/1980 B 1/1/1980 C 2/1/1980 A 2/1/1980 There are 30 products and 10,000 records of such type. Also the month period during which sales happened is given to u. Write the program to display the result as: Product Month No. of copies A January 12 A February 15 A March 27 B January 54 B February 15 B March 10 C January 37

0 Answers  

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What output does the following code generate? Why? What output does it generate if you make A::Foo() a pure virtual function? class A { A() { this->Foo(); } virtual void Foo() { cout << "A::Foo()" << endl; } }; class B : public A { B() { this->Foo(); } virtual void Foo() { cout << "A::Foo()" << endl; } }; int main(int, char**) { A objectA; B objectB; return 0; }

0 Answers  

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Write a program that takes a 3 digit number n and finds out whether the number 2^n + 1 is prime, or if it is not prime find out its factors.

3 Answers   TCS, Vimukti Technologies, Wipro,

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using friend function find the maximum number from given two numbers from two different classes.write all necessary functions and constructor for the classes.

1 Answers   TCS,

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Code for Small C++ Class to Transform Any Static Control into a Hyperlink Control?

0 Answers   Wipro,

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output for printf("printf");

0 Answers  

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what is the difference between int &r and int& r

3 Answers  

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How do I store linked list datas into an array?

1 Answers  

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Here's the programm code: int magic(int a, int b) { return b == 0 ? a : magic(b, a % b); } int main() { int a, b; scanf("%d%d", &a, &b); printf("%d\n", magic(a, b)); return 0; } on input stream we have integers 4, 45 What's the output integer? How many times will be initiated "magic" function?

1 Answers  

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write a function that allocates memory for a single data type passed as a parameter.the function uses the new operator and return a pointer to the allocated memory.the function must catch and handle any exception during allocation

0 Answers   HCL,

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