Explain the need for "Virtual Destructor"?

2 Answers   Infosys,

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What are the various operations performed on stack?

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Explain selection sorting. Also write an example.

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Problem 5: Hero's Formula is A method for calculating the area of a triangle when you know the lengths of all three sides. Let a, b, c be the lengths of the sides of a triangle. The area is given by:A= pp-ap-b(p-c) | wherep= a+b+c2 | | Write a C-language code to calculate area of triangle using above method. Take the three lengths of the triangle from the user and display the area that your program calculates.

0 Answers   Maxobiz,

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What is the difference between reference and pointer?

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What are arrays c++?

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What are the four partitions in which c++ compiler divides the ram?

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What is the identity function in c++? How is it useful?

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Find out the bug in this code,because of that this code will not compile....... #include <iostream> #include <new> #include <cstring> using namespace std; class balance { double cur_bal; char name[80]; public: balance(double n, char *s) { cur_bal = n; strcpy(name, s); } ~balance() { cout << "Destructing "; cout << name << "\n"; } void set(double n, char *s) { cur_bal = n; strcpy(name, s); } void get_bal(double &n, char *s) { n = cur_bal; strcpy(s, name); } }; int main() { balance *p; char s[80]; double n; int i; try { p = new balance [3]; // allocate entire array } catch (bad_alloc xa) { cout << "Allocation Failure\n"; return 1; }

2 Answers   Impetus,

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Should I learn c or c++ or c#?

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Why is c++ considered difficult?

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Why is c++ still best?

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