Question

Explain the concepts o f polymorphism, Encapsulation, Inheritance in detail with suitable examples?

Answer 1

Answer:

Encapsulation:-It is the binding of the data and functions so that they works as one unit.

Inheritance:-When one class acquires the property of another class it is called inheritance.

Polymorphism :-It generally means more than one form

Explanation:

Encapsulation:- class is an example of encapsulation it can hold different data types and functions in a single container called class.

class Name{

public:

string first_name;

string last_name;

void Display()

{

cout<<first_name<<" "<<last_name<<endl;

}

};

Inheritance:-The property of a class acquiring the properties of another class is called inheritance.

Now we will inherit the above defined class.

class person: public Name

{

public:

char gender;

int age;

void Display()

{

cout<<first_name<<" "<<last_name<<gender<<age<<endl;

}

};

int main()

{

Name n;

person p;

n.Display();

p.Display();

}

Polymorphism- There are two types of polymorphism:-

1.Run time polymorphism=The values are decided at run time.

2.Compile time polymorphism=The values are decided at compile time.

Example:-In the above example we have function Display() in both the classes.This is an example of compile-time polymorphism. We are deciding at the time of compilation which display to use.