Examveda

What will be the output of the following C++ code?
#include <iostream>
using namespace std;
template <class T>
class A
{
    public:
    A(int a): x(a) {}
    protected:
    int x;
};
template <class T>
class B: public A<char>
{
    public:
    B(): A<char>::A(100) 
    {
        cout << x * 2 << endl;
    }
};
int main()
{
    B<char> test;
    return 0;
}

A. 100

B. 200

C. error

D. runtime error

Answer: Option B


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What is the difference between '++i' and 'i++' in C++?

A. None of the above

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C. '++i' increments the value of 'i' before returning it, while 'i++' increments the value of 'i' after returning it

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