What will be the output of the following C++ code?
#include <iostream>
using namespace std;
class MyInterface
{
public:
virtual void Display() = 0;
};
class Class1 : public MyInterface
{
public:
void Display()
{
int a = 5;
cout << a;
}
};
class Class2 : public MyInterface
{
public:
void Display()
{
cout <<" 5" << endl;
}
};
int main()
{
Class1 obj1;
obj1.Display();
Class2 obj2;
obj2.Display();
return 0;
}
#include <iostream>
using namespace std;
class MyInterface
{
public:
virtual void Display() = 0;
};
class Class1 : public MyInterface
{
public:
void Display()
{
int a = 5;
cout << a;
}
};
class Class2 : public MyInterface
{
public:
void Display()
{
cout <<" 5" << endl;
}
};
int main()
{
Class1 obj1;
obj1.Display();
Class2 obj2;
obj2.Display();
return 0;
}A. 5
B. 10
C. 5 5
D. 15
Answer: Option C
What does the 'sizeof' operator return in C++?
A. Size of a data type in bits
B. Size of a data type in bytes
C. Size of a variable in bytes
D. Size of a variable in bits
What is the purpose of the 'static' keyword in C++?
A. To declare a variable with dynamic storage duration
B. To declare a constant
C. To declare a variable with external linkage
D. To declare a variable with static storage duration
What is the difference between '++i' and 'i++' in C++?
A. None of the above
B. They both have the same effect
C. '++i' increments the value of 'i' before returning it, while 'i++' increments the value of 'i' after returning it
D. '++i' increments the value of 'i' after returning it, while 'i++' increments the value of 'i' before returning it

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