Inheritance in python

Inheritance:

• It is the process of joining two or more classes and we can access the values from both classes.

Types of Inheritance:

1) Single inheritance

2) Multilevel inheritance

3) Multiple inheritances

Benefits of inheritance:

• Software re-usability
• Information hiding
• Code sharing

Syntax:

1. class class_name1:

       #function definition

   class class_name2(class_name1):

       #function definition

   object_name=class_name(parameter_list)#Object creation

   object_name.function_name(parameter_list)#function calling

Example:

1. #inheritance with constructor

   class employee:

       def __init__(self,id,name,depart,sal):

           self.id=id

           self.name=name

           self.depart=depart

           self.sal=sal

       def display(self):

           print("\tEmployee details")

           print("ID :",self.id)

           print("Name:",self.name)

           print("Department :",self.depart)

           print("Basic Salary : ",self.sal)

   class salary_cal(employee):

       def sal_cal(self)://access sal from base class

           if self.sal>=15000:

               self.sal+=5000

               print("Increased salary:5000")

               print("Net salary:",self.sal)

           elif self.sal>=1000 and self.sal<15000:

               self.sal+=3000

               print("Increased salary:3000")

               print("Net salary:",self.sal)

           else:

               self.sal+=1000

               print("Increased salary:1000")

               print("Net salary:",self.sal)

   id=input("Enter employee id:")

   name=input("Enter employee name:")

   depart=input("Enter employee department:")

   sal=int(input("Enter basic salary:"))

   #object creation

   emp=salary_cal(id,name,depart,sal)

   #emp=employee(id,name,depart,sal)

   emp.display()

   emp.sal_cal()

Output:

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