Explore topic-wise MCQs in C++ Programming.

#include <iostream>
 using namespace std; 
 struct N
 {
 int k;
 char ch;
 float p;
 void function();
 };
 void N :: function() {}
 struct M 
 {
 public:
 int k;
 char ch;
 float p;
 void function();
 };
 void M :: function() {}
 int main() 
 {
 N obj1; M obj2;
 obj1.k = obj2.k = 2; 
 obj1.ch = obj2.ch = 'U';
 obj1.p = obj2.p = 5.125;
 obj1.function();
 obj2.function();
 cout << "Value Allocated in memory..."; 
 return 0;
 }

#include <iostream>
 using namespace std;
 class Employee
 {
 public:
 int IdNo , Salary , bonus ;
 protected:
 void get()
 {
 IdNo = 101, Salary = 15000, bonus = 5000;
 }
 };
 class Extra
 {
 public:
 int Gift;
 void getGift()
 {
 Gift = 4000;
 }
 };
 class statement : public Employee, public Extra
 {
 int GrandTotal, Average;
 public:
 void display()
 {
 GrandTotal = (Salary + bonus);
 Average = GrandTotal / 2;
 cout << GrandTotal << " ";
 cout << Average;
 }
 void setObject()
 {
 get();
 }
 };
 int main()
 {
 statement object;
 object.setObject();
 object.getGift();
 object.display();
 }

#include <iostream>
 using namespace std;
 class Abhay
 {
 public:
 int age;
 };
 int main()
 {
 Abhay obj;
 obj.age = 24;
 
 cout << "Abhay is " ;
 cout << obj.age << " years old.";
 }

#include <iostream>
 using namespace std;
 struct A;
 struct B 
 {
 void fun1(A*);
 };
 struct A 
 {
 private:
 int k;
 public:
 void initialize(); 
 friend void fun2(A* , int);
 friend void B :: fun1(A*);
 friend struct C;
 friend void fun3();
 };
 void A :: initialize() 
 {
 k = 0;
 }
 void fun2(A* a, int k) 
 {
 a -> k = k;
 }
 void B :: fun1(A * a) 
 {
 a -> k = 35;
 cout << a->k;
 }
 struct C
 {
 private:
 int L;
 public:
 void initialize();
 void fun2(A* a);
 };
 void C::initialize() 
 {
 L = 45;
 }
 void C::fun2(A* a) 
 {
 a -> k += L;
 }
 void fun3() 
 {
 A a;
 a.k = 150;
 cout << a.k;
 }
 int main() 
 {
 A a;
 C c;
 c.fun2(&a);
 cout << "Data accessed";
 }

#include <iostream>
 using namespace std;
 struct N 
 {
 private:
 int p, q, s;
 public:
 int fun1();
 void fun2();
 };
 int N :: fun1() 
 {
 return p + q + s;
 }
 void N :: fun2() 
 {
 p = q = s = 0;
 }
 class M 
 {
 int p, q, s;
 public:
 int fun1();
 void fun2();
 };
 int M :: fun1() 
 {
 return p + q + s; 
 }
 void M :: fun2() 
 {
 p = q = s = 0;
 }
 int main() 
 {
 N obj1;
 M obj2;
 obj1.fun1(); 
 obj1.fun2();
 obj2.fun1(); 
 obj2.fun2();
 cout << "Identical results...";
 }