Question

Create a class calc with two data members (num1 & num2). The class should have a constructor that receives arguments during object creation and sets the values of the members. The class should also have a function called divide() that divides the two numbers and returns the result. The function should throw an exception if the denominator is 0.

Create two objects of the class in the main() function. Use class templates making the first object an int and the second object a float. If an exception is thrown, an error statement should be displayed.

Answer 1

Here is code:

#include <iostream>

using namespace std;

template <typename T>

class Calc

{

private:

T a, b;

public:

Calc();

Calc(T aa, T bb);

T divide();

};

template <typename T>

Calc<T>::Calc()

{

a = b = 1;

}

template <typename T>

Calc<T>::Calc(T aa, T bb)

{

a = aa;

b = bb;

}

template <typename T>

T Calc<T>::divide()

{

if (b == 0)

throw "Divisible by zero";

return a / b;

}

int main()

{

Calc<int> c1(10, 2);

Calc<float> c2(5, 0);

cout << "Result : " << c1.divide() << endl;

try

{

cout << "Result : " << c2.divide() << endl;

}

catch (const char *error)

{

cout << error << endl;

}

return 0;

}

Output: