lecture-22.md

Lecture-22 Getter and Setter, Four Pillars Methods in Python

Getter

Getter Method is use to provide a data.

Setter

Setter Method is use to set or manipulate data.

Example :

class Student:
  name=''
  roll_no=''
  def SetName(self,name):
    self.name=name
  def SetRollno(self,roll_no):
    self.roll_no=roll_no
  def SetStudent(self,name,roll_no):
    self.name=name
    self.roll_no=roll_no
  
  def GetName(self):
    return self.name
  def GetRollno(self):
    return self.roll_no
  def GetStudent(self):
    print("Name :",self.name)
    print("Roll No :",self.roll_no)
  
avishkar=Student()
avishkar.SetStudent("Avishkar","123")
avishkar.GetStudent()

⚙️ Output:

Name : Avishkar
Roll No : 123

Four Pillars

Encapsulation. Abstraction.
Polymorphism.
Inheritance.

Encapsulation :

Binding similar data and its functionality.

Abstraction :

Show the necessary things and hiding unnecessary information from the user.

Polymorphism :

Polymorphism in python defines methods in the child class that have the same name as the methods in the parent class.

Inheritance :

Inheritance a class that inherits all the methods and properties from another class.

🔗 Some Useful Links

📖 References