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 are arrays c++?

616

---

What is fflush c++?

586

---

Explain what are accessor methods?

675

---

What is the output of the following program? Why?

630

---

What is a lambda function c++?

560

---

---

Define token in c++.

725

---

What is the maximum value of a unsigned char a) 255 b) 256 c) 128

640

---

Does c++ have string data type?

699

---

Is c++ the hardest programming language?

648

---

Will this c++ program execute or not?

613

---

How to implement is-a and has-a class relationships?

593

---

What is dev c++ used for?

611

---

How static variables and local variablesare similar and dissimilar?

571

---

How can you differentiate between inheritance and implementation in c++?

649

---

Describe the advantage of an external iterator.

621

---