C++ miscellaneous MCQ question and answer with solution | C++ Programimg MCQs

#include <iostream>
using namespace std;
int main () 
{
    try
    {
        throw 20;
    }
    catch (int e)
    {
        cout << "An exception occurred " << e << endl;
    }
    return 0;
}

#include <iostream>
using namespace std;
int main () 
{
    int n; 
    n = 43;
    cout << hex << n << endl;
    return 0;
}

#include <iostream>
using namespace std;
class A
{
    public:
    A(int n )
    {
        cout << n;
    }
};
class B: public A
{
    public:
    B(int n, double d)
    : A(n)
    {
        cout << d;
    }    
};
class C: public B
{
    public:
    C(int n, double d, char ch)
    : B(n, d)
    {
        cout <<ch;
    }
};
int main()
{
    C c(5, 4.3, 'R');
    return 0;
}

#include <iostream>
using namespace std;
template <class T>
class Test
{
  private:
    T val;
  public:
    static int count;
    Test()  {   
    	count++;   
    }
};
template<class T>
int Test<T>::count = 0;
int main()
{
    Test<int> a;
    Test<int> b;
    Test<double> c;
    cout << Test<int>::count << endl;
    cout << Test<double>::count << endl;
    return 0;
}

template<class T, class U>
void func(T a, U b)
{
	cout<<a<<"\t"<<b<<endl;
}