Programmers At War
Programmers At War: Challenge Your Knowledge!
Test your programming skills with our engaging quiz designed for both novice and experienced developers. Dive deep into a variety of questions that cover the intricacies of C++ programming.
- 10 thought-provoking questions
- Multiple choice format
- Instant feedback on your answers
#include
using namespace std;
int main ()
{ int cin;
cin >> cin;
cout << "cin" << cin;
return 0;
}
error in using cin keyword
Cin+junk value
Cin+input
Runtime error
#include<iostream>using namespace std; int x[100];int main(){ cout << x[99] << endl;} Unpredictable
Runtime error
0
99
#include <iostream>#include <vector>using namespace std; class a{public : ~a() { cout << "destroy"; }};int main(){ vector <a*> *v1 = new vector<a*>; vector <a> *v2 = new vector<a>; return 0;} v1
V2
V1 and v2
No destructor call
#include <iostream>int const s=9;int main(){ std::cout << s; return 0;} |
9
Compiler Error
Run Time Error
None of the above
#include <iostream>class Test{public: void fun();};static void Test::fun() { std::cout<<"fun() is static\n";}int main(){ Test::fun(); return 0;} fun() is static
Empty Screen
Compiler Error
None Of the above
#include<iostream>using namespace std; int main(){ int x = 10; int& ref = x; ref = 20; cout << "x = " << x << endl ; x = 30; cout << "ref = " << ref << endl; return 0;}X = 20 ref = 30
X = 20 ref = 20
X = 10 ref = 30
X = 30 ref = 30
#include<iostream>using namespace std; class Base1{public: char c;}; class Base2{public: int c;}; class Derived: public Base1, public Base2{public: void show() { cout << c; }}; int main(void){ Derived d; d.show(); return 0;} |
Compiler Error in “cout << c;"
Garbage Value
Compiler Error in “class Derived: public Base1, public Base2”
Which of the following operators are overloaded by default by the compiler in every user defined classes even if user has not written?
1) Comparison Operator ( == ) 2) Assignment Operator ( = )
Both 1 and 2
Only 1
Only 2
None of the two
How can we make a C++ class such that objects of it can only be created using new operator?
If user tries to create an object directly, the program produces compiler error.
Not possible
By making destructor private
By making constructor private
By making both constructor and destructor private
#include<iostream>
using namespace std;
int x = 1;
void fun()
{
int x = 2;
{
int x = 3;
cout << ::x << endl;
}
}
int main()
{
fun();
return 0;
}
1
2
3
0
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