Grouping of Exceptions C++ MCQ

1. How many types of exception handling are there in c++?
a) 1
b) 2
c) 3
d) 4

Answer:b

2. How many runtime error messages associated with exception?
a) 2
b) 4
c) 5
d) infinite

Answer:c

3. Which block should be placed after try block?
a) catch
b) throw
c) a or b
d) none of the mentioned

Answer:c

4. What is the output of this program?

```
    #include <iostream>
```
```
    using namespace std;
```
```
    int main()
```
```
    {
```
```
        double a = 10, b = 5, res;
```
```
        char Operator = '/';
```
```
        try 
```
```
        {
```
```
            if (b == 0)
```

                throw "Division by zero not allowed";

```
            res = a / b;
```

            cout << a << " / " << b << " = " << res;

```
        }
```
```
        catch(const char* Str)
```
```
        {
```

            cout << "\n Bad Operator: " << Str;

```
        }
```
```
        return 0;
```
```
    }
```

a) 10
b) 2
c) Bad Operator
d) 10 / 5 = 2

Answer:d

5. What is the output of this program?

```
    #include <iostream>
```
```
    using namespace std;
```
```
    int main()
```
```
    {
```
```
        try
```
```
        {
```
```
            throw 1;
```
```
        }
```
```
        catch (int a)
```
```
        {
```

            cout << "exception number:  " << a << endl;

```
            return 0;
```
```
        }
```

        cout << "No exception " << endl;

```
        return 0;
```
```
    }
```

a) No exception
b) exception number
c) exception number: 1
d) none of the mentioned

Answer:c

6. What is the output of this program?

```
    #include <iostream>
```
```
    using namespace std;
```
```
    int main()
```
```
    {
```
```
        int a = 10, b = 20, c = 30;
```
```
        float  d;
```
```
        try
```
```
        {
```
```
            if ((a - b) != 0)
```
```
            {
```
```
                d = c / (a - b);
```
```
                cout << d;
```
```
            }
```
```
            else
```
```
            {
```
```
                throw(a - b);
```
```
            }
```
```
        }
```
```
        catch (int i)
```
```
        {
```

            cout<<"[expand title="View Answer"] Answer is infinite "<<i;

```
        }
```
```
    }
```

a) 10
b) -3
c) 15
d) none of the mentioned

Answer:b

7. What is the output of this program?

```
    #include <iostream>
```
```
    using namespace std;
```
```
    void test(int x)
```
```
    {
```
```
        try
```
```
        {
```
```
            if (x > 0)
```
```
                throw x;
```
```
            else
```
```
                throw 'x';
```
```
        }
```
```
        catch(int x)
```
```
        {
```
```
            cout<<"integer:"<<x;
```
```
        }
```
```
        catch(char x)
```
```
        {
```
```
            cout << "character:" << x;
```
```
        }
```
```
    }
```
```
    int main()
```
```
    {
```
```
        test(10);
```
```
        test(0);
```
```
    }
```

a) integer:10character:x
b) integer:10
c) character:x
d) none of the mentioned

Answer:a

8. What is the output of this program?

```
    #include <iostream>
```
```
    using namespace std;
```
```
    void PrintSequence(int StopNum)
```
```
    {
```
```
        int Num;
```
```
        Num = 1;
```
```
        while (true)
```
```
        {
```
```
            if (Num >= StopNum)
```
```
                throw Num;
```
```
            cout << Num << endl;
```
```
            Num++;
```
```
        }
```
```
    }
```
```
    int main(void)
```
```
    {
```
```
        try
```
```
        {
```
```
            PrintSequence(2);
```
```
        }
```
```
        catch(int ExNum)
```
```
        {
```

            cout << "exception: " << ExNum << endl;

```
        }
```
```
        return 0;
```
```
    }
```

a) 1
b) exception: 2
c) 1
exception: 2
d) none of the mentioned

Answer:c

9. Pick out the correct Answer.
a) Exceptions are not suitable for critical points in code.
b) Exception are suitable for critical points in code.
c) Both a & b
d) none of the mentioned

Answer:a

10. Where does the exceptions are used?
a) To preserve the program
b) Exceptions are used when postconditions of a function cannot be satisfied.
c) Exceptions are used when postconditions of a function can be satisfied.
d) none of the mentioned

Answer:c

Grouping of Exceptions C++ MCQ

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