Answer Posted / prajesh gupta (ferozepur, punj

Pure Virtual Functions:
1. "Do nothing Function"
virtual void display() = 0;
2. declared in base class.
3. class containing a pure virtual function does not
declare an object of its own. (That class is known as
ABSTRACT CLASS)

Advantages Of Using:

1. To inherit the properties of the derived class.
2. To create a base pointer required for runtime
poymorphism.
3. To avoid overwriting of member function.

What is the header file for setw?

1135

---

Distinguish between a # include and #define.

1152

---

Define a pointer to a data member of the type pointer to pointer?

992

---

What is the last index number in an array of 100 characters a) 100 b) 99 c) 101

1154

---

How static variables and local variablesare similar and dissimilar?

1044

---

What's the hardest coding language?

1004

---

How can you link a c program with a c function?

1076

---

Can we get the value of ios format flags?

1141

---

Why c++ is better than c language?

1020

---

What is size of string in c++?

987

---

Can we overload operator in c++?

1042

---

What is a storage class?

1280

---

What does new in c++ do?

1027

---

Define macro.

1096

---

How the keyword struct is different from the keyword class in c++?

1043

---