Which of the following is correct?
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C++ Programming · all questionsIntroduction to C++
Introduction to C++
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What will be the output of the following C++ code?
#include<iostream>
using namespace std;
class A
{
~A(){
cout<<"Destructor called\n";
}
};
int main()
{
A a;
return 0;
}Select an option to see the answer and solution.
Why this pointer is used?
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Which of the following is correct about static variables?
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Which of the following syntax can be used to use a member of a namespace without including that namespace?
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Who created C++?
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Which of the following is correct about static polymorphism?
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Which of the following is the scope resolution operator?
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What happens if the following program is executed in C and C++?
#include <stdio.h>
void main()
{
printf("Hello World");
}Select an option to see the answer and solution.
Which of the following is an entry-controlled loop?
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What will be the output of the following C++ code?
#include <iostream>
int const s=9;
int main()
{
std::cout << s;
return 0;
}Select an option to see the answer and solution.
Which concept is used to implement late binding?
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What will be the output of the following C++ code?
#include <iostream>
int main(int argc, char const *argv[])
{
cout<<"Hello World";
return 0;
}Select an option to see the answer and solution.
Which of the following cannot be used with the virtual keyword?
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What happens if the following program is executed in C and C++?
#include <stdio.h>
int main(void)
{
int new = 5;
printf("%d", new);
}Select an option to see the answer and solution.
Which of the following is an exit-controlled loop?
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What will be the output of the following C++ code?
#include <iostream>
using namespace std;
class Test
{
static int x;
public:
Test() { x++; }
static int getX() {return x;}
};
int Test::x = 0;
int main()
{
cout << Test::getX() << " ";
Test t[5];
cout << Test::getX();
}Select an option to see the answer and solution.
What happens if the following program is executed in C and C++?
#include<stdio.h>
int main()
{
foo();
}
int foo()
{
printf("Hello");
return 0;
}Select an option to see the answer and solution.
Which of the following is C++ equivalent for scanf()?
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What will be the output of the following C++ code?
#include<iostream>
using namespace std;
int x = 1;
int main()
{
int x = 2;
{
int x = 3;
cout << ::x << endl;
}
return 0;
}Select an option to see the answer and solution.