Q:

Multilevel Inheritance Example in Python

mahmoud2506
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2022-05-20
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 We will see a program to illustrate the working of multilevel inheritance in Python.

Problem Description: The program will calculate the final salary of an employee from basic salary using multilevel inheritance.

Multilevel Inheritance in Python:

Multilevel inheritance in programming (general in object-oriented program). When a base class is derived by a derived class which is derived by another class, then it is called multilevel inheritance.

The below diagram will make things clearer,

multilevel inheritance example

All Class used in the program and the methods:

  • Class: Employee
    • Method: getEmployee() -> gets user input from id, name and salary.
    • Method: printEmployeeDetails() -> prints employee detail
    • Method: getSalary() -> return the salary of the employee.
  • Class: Perks
    • Method: calcPerks() -> calculates all perks using the salaries.
    • Method: putPerks() -> prints all perks.
    • Method: totalPerks() -> return the sum of all perks.
  • Class : NetSalary:
    • Method: getTotal() -> calculates net Salary using perks and base salary.
    • Method: showTotal() -> prints total salary.
Python programming,
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mahmoud2506
2022-05-20
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Program to illustrate multilevel inheritance in Python

class Employee:
 def getEmployee(self):
   self.__id = input("Enter Employee Id: ")
   self.__name = input("Enter Name: ")
   self.__salary = int(input("Enter Employees Basic Salary: "))
 
 def printEmployeeDetails(self):
   print(self.__id,self.__name,self.__salary)
 
 def getSalary(self):
     return(self.__salary)

class Perks(Employee):
    def calcPerks(self):
        self.getEmployee()
        sal=self.getSalary()
        self.__da=sal*35/100
        self.__hra = sal * 17 / 100
        self.__pf=sal*12/100
    def putPerks(self):
        self.printEmployeeDetails()
        print(self.__da,self.__hra,self.__pf)
    def totalPerks(self):
        t=self.__da+self.__hra-self.__pf
        return (t)
        
class NetSalary(Perks):
    def getTotal(self):
       self.calcPerks()
       self.__ns=self.getSalary()+self.totalPerks()
    def showTotal(self):
        self.putPerks()
        print("Total Salary:",self.__ns)
        
empSalary = NetSalary()
empSalary.getTotal()
empSalary.showTotal()

Output:

Enter Employee Id: 001
Enter Name: John
Enter Employees Basic Salary: 25000
001 John 25000
8750.0 4250.0 3000.0
Total Salary: 35000.0

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