There are four features of Object Oriented Programming:-
1. Abstraction
4. Inheritance
Abstraction
To reduce and remove the complexity of programming
language we use abstraction.
Each real world entity has behavior and
functionality. Behavior should be hidden and functionality should be
exposing.
Example-
1.
Do you know the inner details of the Monitor of your
PC? What happen when you switch ON Monitor? Does this matter to you what is
happening inside the Monitor? No Right, Important thing for you is weather
Monitor is ON or NOT.
2.
When you change the gear of your vehicle are you really
concern about the inner details of your vehicle engine? No but what matter to
you is that Gear must get changed that’s it.
Encapsulation
1. We can combine both behavior and functionality
both together with the wrapper of class. This means that a class which has data
member as well as method is called encapsulation.
2. Dividing each of its classes into
two distinct parts: the interface and the implementation.3. Class is the best example of encapsulation.
By using the get and set methods (Accessors
and Mutators)
public class Account
{
private string
accoutName;
// get methods
public string
GetAccount()
{
return accoutName;
}
// Set method
public void
SetAccount(string name)
{
accoutName = name;
}
}
static void Main()
{
string name = "SAVING_ACCOUNT";
Account account = new
Account();
account.SetAccount(name);
name
= string.Empty;
name
= account.GetAccount();
}
