Chapter 23

Question 1

What happen when child class constructor call, does parent class constructor calls first or child class constructor

Answer 1

parent class constructor

Question 2

What is base class initialization mechanism

Answer 2

If there is no constructor on parent class and child class constructor called, we can explicitly call base class constructor from child class. So if there is no constructor define in parent class, then we can still call it from child class explicitly. this is called base class initialization mechanism.

Question 3

What is destructor calling order in inheritance

Answer 3

derive class destructor calls first and then base class constructor called.

Question 4

What is protected access modifiers/members

Answer 4

The publicly drive class can access members of its base class.

Question 5

What is static type

Answer 5

Static typed programming languages are those in which variables need not be defined before they’re used.

Question 6

What is IS kind of relationship

Answer 6

When we point base class pointer to derive class object