Quiz on Interfaces in C++

C++ interfaces are implemented using which of the following methods?

C++’s interface is similar to what?

In the client mode, what is imported?

What is the output of the following code snippet?
#include <iostream>
using namespace std;
struct University{
   virtual void course() = 0;
};
struct Student : University {
  virtual void course() {
     cout<<“Student”;
}
};
University& i(University&);
int main() {
   University* univ;
   Student stu;
   static_cast<University>(stu);
}

What is the output of the following code snippet?
#include <iostream>
using namespace std;
class Shape
{
public:
virtual void drawShape()=0;
};
class Square:Shape
{
public:
void drawShape()
{
cout<<“Drawing a Square!”<<endl;
}
};
class Rect:Shape
{
public:
void drawShape()
{
cout<<“Drawing a Rectangle!”<<endl;
}
};
int main()
{
Square s;
Rect r;
cout<<“QuizOrbit C++ Interfaces!”<<endl;
s.drawShape();
r.drawShape();
return 0;
}

What is the output of the following code snippet?
#include <iostream>
using namespace std;
class University{
   virtual void course() = 0;
};
class Student : University {
   void courseFee() {
      cout<<“Student Course Fee”;
}
};
int main() {
   Student stu;
}

What is the output of the following code snippet?
#include <iostream>
using namespace std;
class Animal
{
public:
virtual void name()=0;
};
class Dog:Animal
{
public:
void name()
{
cout<<“Dog name is Baby!”<<endl;
}
};
class Cat:Animal
{
public:
void name()
{
cout<<“Cat name is catty!”<<endl;
}
};
int main()
{
Cat c;
Dog d;
cout<<“QuizOrbit C++ Interfaces!”<<endl;
c.name();
d.name();
return 0;
}

What is the output of the following code snippet?
#include <iostream>
using namespace std;
class Animal
{
public:
virtual void name()=0;
void play(){
   cout<<“Pet is Playing “<<endl;
}
};
class Dog:public Animal
{
public:
void name()
{
cout<<“Dog name is Baby!”<<endl;
}
};
class Cat:public Animal
{
public:
void name()
{
cout<<“Cat name is catty!”<<endl;
}
};
int main()
{
Cat c;
Dog d;
cout<<“QuizOrbit C++ Interfaces!”<<endl;
c.name();
d.name();
c.play();
d.play();
return 0;
}

What is the output of the following program?
#include <iostream>
using namespace std;
class Animal
{
public:
virtual void name()=0;
void play(){
   cout<<“Pet is Playing “<<endl;
}
};
class Dog: Animal
{
public:
void name()
{
cout<<“Dog name is Baby!”<<endl;
}
};
class Cat: Animal
{
public:
void name()
{
cout<<“Cat name is catty!”<<endl;
}
};
int main()
{
Cat c;
Dog d;
cout<<“QuizOrbit C++ Interfaces!”<<endl;
c.name();
d.name();
c.play();
d.play();
return 0;
}

What is the output of the following program?
#include <iostream>
using namespace std;
class Animal
{
public:
virtual void name()=0;
void play(){
  cout<<“Pet is Playing “<<endl;
}
};
class Dog:public Animal
{
public:
void name()
{
cout<<“Dog name is Baby!”<<endl;
}
};
class Cat:public Animal
{
public:
void name()
{
cout<<“Cat name is catty!”<<endl;
}
};
int main()
{
   Animal *obj = new Dog();
obj->name();
Animal *obj1=new Cat();
obj1->play();
cout<<“QuizOrbit C++ Interfaces!”<<endl;
return 0;
}

What is the output of the following code snippet?
#include <iostream>
using namespace std;
class Animal
{
public:
virtual void name()=0;
void play(){
  cout<<“Pet is Playing “<<endl;
}
};
class Dog:Animal
{
public:
void name()
{
cout<<“Dog name is Baby!”<<endl;
}
};
class Cat:Animal
{
public:
void name()
{
cout<<“Cat name is catty!”<<endl;
}
};
int main()
{
   Animal *obj = new Dog();
obj->name();
Animal *obj1=new Cat();
obj1->play();
cout<<“QuizOrbit C++ Interfaces!”<<endl;
return 0;
}

What is the output of the following code snippet?
#include <iostream>
using namespace std;
class Parent
{
public:
virtual void name()=0;
void play(){
   cout<<“Class is Playing a game “<<endl;
}
};
class Derived:public Parent
{
public:
void name()
{
cout<<“Derived class executed!”<<endl;
}
};
class Cat:public Parent
{
public:
void name()
{
cout<<“Derived2 class is executing!”<<endl;
}
};
int main()
{
    Parent *obj = new Derived();
obj->name();
Parent *obj1=new Derived();
obj1->play();
cout<<“QuizOrbit C++ Interfaces!”<<endl;
return 0;
}

What is the output of the following code snippet?
#include<iostream>
using namespace std;
class Parent
{
public:
            virtual void display() = 0;
};
class Child: public Parent
{
public:
              void display() { cout << “In Child Class \n”; }
};
int main(void)
{
                     Parent *pt = new Child();
                     pt->display();
                     return 0;
}

What is the output of the following code?
#include<iostream>
using namespace std;
class Parent
{
protected:
int a;
public:
virtual void func() = 0;
Parent(int c) {
                                   a = c;
                                   cout<<“Parent class constructor called\n”;
                                   }
};
class Child: public Parent
{
                int b;
public:
                Child(int c, int d):Parent(c) { b = d; }
                void func() { cout << “a = ” << a << “, b = ” << b<<‘\n’; }
};
int main(void)
{
                Child c(5, 8);
                c.func();
                Parent *pb=new Child(8,9);
                pb->func();
                return 0;
}

What is the output of the following program?
#include<iostream>
using namespace std;
class University{
public:
   virtual void course() = 0;
    void classes() {
       cout<<“Classes”;
       }
};
class Faculty: public University{
public:
     void course() {
           cout<<“select any course from no. of available courses:”<<endl;
        }
};
int main(){
   Faculty fc;
   fc.course();
   fc.classes();
   return 0;
}