Darshana N. Madke: Tutoring for Knowledge Excellence

Answer

A friend function is used to access private data of a class without a member of a class. In operator overloading it is very helpful, for e.g. overloading >>(extraction)

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Access Specifiers for the class member in c++

• private - members are accessible to class only
• public - members are accessible to class and outside from the class
• protected - members are accessible to class and in inheritance level, but not outside the class

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Modal dialog box do not allow other windows(other dialog boxes) to operate till it is opened, whereas modaless dialog box allow other windows(other dialog boxes) to operate.

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By default Assignment operator(=) is overloaded in user defined class. But if class contains pointer, and requires dynamic allocation, then it is necessory to overload assinment operator. This is also called as Deep Copy

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When there is a requirement to call a method before creating object of class, because if we create a object constructor will be called, and we need a method to be called before constructor that will perform some operations on static data member of a class. In this case static method is required.

Another scenario where static method is used - if all the data members of a class are static, methods are also static. If we do not create static method, then we have to create object of class to call the method, which is unnecessory.

Answer

template<class T>

class Stack

{

   T item[10];

   int top;

   public:

   Stack() { top = -1; }

   int IsEmpty() { top == -1; }

   int IsFull() { top == 9 ; }

   void Push(T ele) { item[++top] = ele; }

   int Pop()

  {

      T ele;

      ele = item[top--];

      return ele;

   }

};

main()

{

    Stack<int> s1;

   Stack<float> s2;

}