Exception Handling Easy Questions and Answers

Where exception are handled?

Correct Option: C

outside the regular code

How many parameters does the throw expression can have?

Correct Option: D

In c++ program, We can be able to throw only one error at a time.

What is the output of this program?

#include <iostream>
    using namespace std;
    void Sequence(int StopN)
    {
        int N;
        N = 3;
        while (true)
        {
            if (N >= StopN)
                throw N;
            cout << N << endl;
            N++;
        }
    }
    int main(void)
    {
        try
        {
            Sequence(4);
        }
        catch(int ExN)
        {
            cout << "exception: " << ExN << endl;
        }
        return 0;
    }

Correct Option: A

In this program, We are printing one and raising a exception at 4.

What is the output of this program?

#include <iostream>
    using namespace std;
    void Example(int num)
    {
        try
        {
            if (num > 0)
                throw num;
            else
                throw 'U';
        }
        catch(int num)
        {
            cout<<"Integer: "<< num << endl;
        }
        catch(char ch)
        {
            cout << "Character: " << ch;
        }
    }
    int main()
    {
        Example(12);
        Example(0);
    }

Correct Option: C

We are passing the integer and character and catching it by using multiple catch statement.

What is the output of this program?

#include <iostream>
    using namespace std;
    int main()
    {
        int n1 = 20, n2 = 30, n3 = 60;
        float  Res;
        try
        {
            if ((n1 - n2) != 0)
            {
                Res = n3 / (n1 - n2);
                cout << Res;
            }
            else
            {
                throw(n1 - n2);
            }
        }
        catch (int k)
        {
            cout<<"Answer is infinite..."<< k;
        }
    }

Correct Option: D

We are manipulating the values, if there is any infinite value means, it will raise an exception.