C++ Operators | Set 2

11. Which operator is having the highest precedence?

a) postfix
b) unary
c) shift
d) equality

12. What is this operator called "?:" ?

a) conditional
b) relational
c) casting operator
d) unrelational

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

#include <iostream>
using namespace std;
int main() {

    int a;
    a = 5 + 3 * 5;
    cout << "a: " << a;

    return 0;
}

a) 35
b) 20
c) 25
d) 30

14. What is the use of dynamic_cast operator?

a) it converts virtual base class to derived class
b) it converts the virtual base object to derived objects
c) it will convert the operator based on precedence
d) it converts the virtual base object to derived class

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

#include <iostream>
using namespace std;
int main() {

    int a = 5, b = 6, c, d;
    c = a, b;
    d = (a ,b);
    cout << c << " " << d;

    return 0;
}

a) 5  6
b) 6  5
c) 6  7
d) 6  8

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

#include <iostream>
using namespace std;
int main() {

    int i, j;
    j = 10;
    i = (j++, j + 100, 999 + j);
    cout << i;

    return 0;
}

a) 1000
b) 11
c) 1010
d) 1001

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

#include <iostream>
using namespace std;
int main() {

    int x, y;
    x = 5;
    y = ++x * ++x;
    cout << x << y;
   
    y = x++ * ++x;
    cout << x << y;
   
    return 0;
}

a) 749735
b) 736749
c) 367497
d) 367597

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

#include <iostream>
using namespace std;
int main() {

    int a = 5, b = 6, c;
    c = (a > b) ? a : b;
    cout << c;

    return 0;
}

a) 6
b) 5
c) 4
d) 7

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

#include <iostream>
using namespace std;
int main() {

    double a = 21.09399;
    float b = 10.20;
    int c, d;
    c = (int) a;
    d = (int) b;
    cout << c << " " << d;

    return 0;
}

a) 20 10
b) 10 21
c) 21 10
d) 10 20

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

#include <iostream>
using namespace std;
int main() {

    int a = 20, b = 10, c = 15, d = 5;
    int e;
    e = a + b * c / d;
    cout << e << endl;

    return 0;
}

a) 50
b) 60
c) 70
d) 90