C++ Programming · all questions

Variables and Data Types in C++
practice.

Practice every MCQ with options. Use Show answers when you want the correct option and solution.

123

Questions

5/7

Page

Pick an option on a question to see the right answer and solution.

Q81

What will be the output of the following C++ code?

#include <iostream>
using namespace std;
int main()
{
    enum channel {star, sony, zee};
    enum symbol {hash, star};
    int i = 0;
    for (i = star; i <= zee; i++) 
    {
        printf("%d ", i);
    }
    return 0;
}

Select an option to see the answer and solution.

Q82

What does '\a' escape code represent?

Select an option to see the answer and solution.

Q83

What will be the output of the following C++ code?

#include <iomanip>
#include <iostream>
using namespace std;
int main()
{
    cout << setprecision(17);
    double d = 0.1;
    cout << d << endl;
    return 0;
}

Select an option to see the answer and solution.

Q84

What will be the output of the following C++ code?

#include <iostream>
using namespace std;
int main()
{
    float num1 = 1.1;
    double num2 = 1.1;
    if (num1 == num2)
       cout << "stanford";
    else
       cout << "harvard";
    return 0;
}

Select an option to see the answer and solution.

Q85

How do we represent a wide character of the form wchar_t?

Select an option to see the answer and solution.

Q86

Which of the following statements are true?

int f(float)

Select an option to see the answer and solution.

Q87

What will be the output of the following C++ code?

#include <iostream>
using namespace std;
int main()
{
    int a = 5;
    float b;
    cout << sizeof(++a + b);
    cout << a;
    return 0;
}

Select an option to see the answer and solution.

Q88

Which of the following statements are false?

Select an option to see the answer and solution.

Q89

In C++, what is the sign of character data type by default?

Select an option to see the answer and solution.

Q90

Which of these expressions will isolate the rightmost set bit?

Select an option to see the answer and solution.

Q91

What will be the output of the following C++ code?

#include <iostream>
using namespace std;
int main ( )
{
    static double i;
    i = 20;
    cout << sizeof(i);
    return 0;
}

Select an option to see the answer and solution.

Q92

Identify the incorrect option.

Select an option to see the answer and solution.

Q93

Choose the incorrect option.

Select an option to see the answer and solution.

Q94

Find the odd one out.

Select an option to see the answer and solution.

Q95

Which variable does equals in size with enum variable?

Select an option to see the answer and solution.

Q96

What will be the output of the following C++ code?

#include <iostream>
using namespace std;
enum colour 
{
    green, red, blue, white, yellow, pink
};
int main()
{
    cout << green<< red<< blue<< white<< yellow<< pink;
    return 0;
}

Select an option to see the answer and solution.

Q97

Which of the two operators ++ and - work for the bool data type in C++?

Select an option to see the answer and solution.

Q98

What will be the output of the following C++ code?

#include <iostream>
using namespace std;
int main()
{
    int i;
    enum month 
    {
        JAN = 1, FEB, MAR, APR, MAY, JUN, JUL, AUG, SEP, OCT, NOV, DEC
    };
    for (i = MAR; i <= NOV; i++)
       cout << i;
    return 0;
}

Select an option to see the answer and solution.

Q99

What is the range of the floating point numbers?

Select an option to see the answer and solution.

Q100

Which of the following belongs to the set of character types?

Select an option to see the answer and solution.

Prev 3 4 5 6 7 Next