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C++ MCQs with answers Page - 4
Dear candidates you will find MCQ questions of C++ here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
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U
Q. What is the output of this program?
Code:
#include
using namespace std;
void copy (int& p, int& q, int& r)
{
p = p * 1;
q = q * 2;
r = r * 3;
}
int main ()
{
int m = 6, n = 3, o = 2;
copy (m, n, o);
cout << "M = " << m << ", N = " << n << ", O = " << o;
return 0;
}
U
Q. By default how the value are passed in c++?
U
Q. Which is used to keep the call by reference value as intact?
U
Q. How many ways of passing a parameter are there in c++?
U
Q. What is the use of the function “showbase”?
U
Q. What is the output of this program?
Code:
#include <iostream>
using namespace std;
int main()
{
unsigned long num = 56;
cout << num << oct <<" " << num << endl;
return 0;
}
U
Q. What is the output of this program?
Code:
#include <iostream>
#include <iomanip>
using namespace std;
void showDate(int mm, int dd, int yy)
{
cout << setfill('0');
cout << setw(2) << mm << '/'
<< setw(2) << dd << '/'
<< setw(4) << yy << endl;
}
int main()
{
showDate(1, 1, 2019);
return 0;
}
U
Q. Which function allows you to set minimum width for the next input?
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