C++ Operator Test – 2

1. Which of the following operator can be overloaded?

2. In the case of friend operator overloaded functions how many maximum object arguments a binary operator overloaded function can take?

3. Which of the following operator can be used to overload when that function is declared as friend function?

4. Which of the following operator cannot be overloaded?

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

#include <iostream>
#include <string>
using namespace std;
class A
{
	static int a;
	
   public:
	void show()
        {
		a++;
		cout<<"a: "<<a<<endl;
	}
	void operator.()
        {
		cout<<"Objects are added\n";
	}
};

class B
{
     public:
};

int main(int argc, char const *argv[])
{
	A a1, a2;
	return 0;
}

6. In case of non-static member functions how many maximum object arguments a unary operator overloaded function can take?

7. In the case of friend operator overloaded functions how many maximum object arguments a unary operator overloaded function can take?

8. Which of the following operator cannot be used to overload when that function is declared as friend function?

9. What is the syntax of overloading operator + for class A?

10. What is operator overloading in C++?

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

#include <iostream>
#include <string>
using namespace std;
class A
{
	static int a;
    public:
	A()
        {
		cout<<"Object of A is created\n";
	}
	void show()
        {
		a++;
		cout<<"a: "<<a<<endl;
	}
};

class B
{
    public:
};

int main(int argc, char const *argv[])
{
	A a1, a2;
	A a3 = a1 + a2;
	return 0;
}

12. What happens when objects s1 and s2 are added?

string s1 = "Hello";
string s2 = "World";
string s3 = (s1+s2).substr(5);

13. How many approaches are used for operator overloading?

14. In case of non-static member functions how many maximum object arguments a binary operator overloaded function can take?

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

#include <iostream>
#include <string>
using namespace std;
class A
{
	static int a;
    public:
	void show()
        {
		a++;
		cout<<"a: "<<a<<endl;
	}
};

int A::a = 5;

int main(int argc, char const *argv[])
{
	A a;
	return 0;
}