Inheritance

Types of Inheritance

We can derive our class from existing classes in different ways.

Single level Inheritance

If a class is derived from a simple base class then such type of inheritance is called as single level inheritance.

Multi-level Inheritance

If a class is derived from a derived class then such type of inheritance is called as multi-level inheritance.

Hierarchical Inheritance

If multiple classes are derived from a single base class then such type of inheritance is called as Hierarchical inheritance.

Multiple Inheritance

If a class is derived from a multiple base classes then such type of inheritance is called as multiple inheritance.

Hybrid Inheritance

If mix type of inheritance is used then such type of inheritance is called as Hybrid inheritance.

#Design 3 classes Person, Employee and Manager from given inheritance diagram.

class Person

Data members

Name
City

Member Functions

Person(n,c)
showdata()

class Employee

Data members

Job
Salary

Member Functions

Employee(n,c,j,s)
showdata( )

class Manager

Data members

Branch

Member Functions

Manager(n,c,j,s,b)
showdata( )

class Person:
  def __init__(self,nm,ct):
    self.name = nm
    self.city = ct
  def showdata(self):
    print("Name is ", self.name)
    print("City is ", self.city)

class Employee(Person):
  def __init__(self,nm,ct,jb,sl):
    super().__init__(nm,ct)
    self.job = jb
    self.salary = sl
  def showdata(self):
    super().showdata()
    print("Job is ",self.job)
    print("Salary is ", self.salary)

class Manager(Employee):
  def __init__(self,nm,ct,jb,sl,br):
    super().__init__(nm,ct,jb,sl)
    self.branch = br
  def showdata(self):
    super().showdata()
    print("Branch is ",self.branch)

a=Person("Amit jain","Amrvati")
a.showdata()
b=Employee("Raj Rathi","Raipur","Clerk",15600)
b.showdata()
c=Manager("M.Rao","Mumbai","Sr.Mgr",45600,"SBI-Amt")
c.showdata()

Name is Amit Jain
City is Amravati
Name is Raj Rathi
City is Raipur
Job is Clerk
Salary is 15600
Name is M.Rao
City is Mumbai
Job is Sr.Mgr
Salary is 45600
Branch is SBI-Amt

#Design 3 classes Person, Employee and Manager from given inheritance diagram.

class Person

Data members

Name
City

Member Functions

Person(n,c)
showdata()

class Employee

Data members

Job
Salary

Member Functions

Employee(n,c,j,s)
showdata( )

class Manager

Data members

Branch

Member Functions

Manager(n,c,j,s,b)
showdata( )

class Person:
  def __init__(self,nm,ct):
    self.name = nm
    self.city = ct
  def showdata(self):
    print("Name is ", self.name)
    print("City is ", self.city)

class Employee(Person):
  def __init__(self,nm,ct,jb,sl):
    super().__init__(nm,ct)
    self.job = jb
    self.salary = sl
  def showdata(self):
    super().showdata()
    print("Job is ",self.job)
    print("Salary is ", self.salary)

class Manager(Employee):
  def __init__(self,nm,ct,jb,sl,br):
    super().__init__(nm,ct,jb,sl)
    self.branch = br
  def showdata(self):
    super().showdata()
    print("Branch is ",self.branch)

a=Person("Amit jain","Amrvati")
a.showdata()
b=Employee("Raj Rathi","Raipur","Clerk",15600)
b.showdata()
c=Manager("M.Rao","Mumbai","Sr.Mgr",45600,"SBI-Amt")
c.showdata()

Name is Amit Jain
City is Amravati
Name is Raj Rathi
City is Raipur
Job is Clerk
Salary is 15600
Name is M.Rao
City is Mumbai
Job is Sr.Mgr
Salary is 45600
Branch is SBI-Amt

#Design 3 classes Student, Exam and Marksheet from given inheritance diagram

class Student

Data members

rollno
Name
branch

Member Functions

Student(r,n,b)
showdata()

class Exam

Data members

marks

Member Functions

Exam(r,n,b,*mks)
showdata( )

class Marksheet

Member Functions

Marksheet(r,n,b,*mks)
showdata( )
total( )
Percentage( )
result( )

class Student:
  def __init__(self,rn,nm,br):
    self.rollno=rn
    self.name = nm
    self.branch = br
  def showdata(self):
    print("RollNo is",self.rollno)
    print("Name is" ,self.name)
    print("Branch is" ,self.branch)

class Exam(Student):
  def __init__(self,r,n,b,*mks):
    super().__init__(r,n,b)
    self.marks = mks

class Marksheet(Exam):
  def total(self):
    t=sum(self.marks)
    return t
  def percentage(self):
    c=len(self.marks)
    p=sum(self.marks)/c
    return p
  def result(self):
    for mk in self.marks:
    if mk < 40 :
      return "Fail"
    else:
      return "Pass"

a=Marksheet(4117,"Amit Jain","CSE-3",57,68,34,56,62)
a.showdata()
print("Total is",a.total())
print("Prcentage is",a.percentage())
print("Result is",a.result())

RollNo is 4117
Name is Amit Jain
Branch is CSE-3
Total is 277
Prcentage is 55.4
Result is Fail

#Design 3 classes Person Student and Teacher from following inheritance Diagram.

class Person

Data members

Name
City

Member Functions

Person(n,c)
showdata()

class Student

Data members

rollno
branch

Member Functions

Student(r,n,c,b)
showdata( )

class Teacher

Data members

subjects

Member Functions

Teacher(n,c,*subs)
showdata( )

class Person:
  def __init__(self,nm,ct):
    self.name=nm
    self.city=ct
  def showdata(self):
    print("Name is ",self.name)
    print("City is ",self.city)

class Student(Person):
  def __init__(self,rn,nm,ct,br):
    self.rollno=rn
    super().__init__(nm,ct)
    self.branch=br
  def showdata(self):
    print("Rollno is",self.rollno)
    super().showdata()
    print("Branch is",self.branch)
    
class Teacher(Person):
  def __init__(self,nm,ct,*subs):
    super().__init__(nm,ct)
    self.subjects=subs
  def showdata(self):
    super().showdata()
    print("Subjects are")
    for sub in self.subjects:
      print(sub)

a=Person("Amit jain","Amrvati")
a.showdata()
b=Student(4117,"Raj Joshi","Nagpur","CSE-3")
b.showdata()
c=Teacher("Raja Kumar","Raipur","Hin","His","Geo")
c.showdata()

Name is Amit Jain
City is Amravati
Rollno is 4117
Name is Raj Rathi
City is Nagpur
Branch is CSE-3
Name is Raja Kumar
City is Raipur
Subjects are
Hin
His
Geo

#Design 3 classes Person Student and Teacher from following inheritance Diagram.

class Person

Data members

Name
City

Member Functions

Person(n,c)
showdata()

class Employee

Data members

Job
Salary
Advance

Member Functions

Employee(n,c,j,s,a)
showdata( )
Payment()

class Worker

Data members

wages
wdays

Member Functions

Worker(n,c,w,d)
showdata( )
Payment()

class Person:
  def __init__(self,nm,ct):
    self.name=nm
    self.city=ct
  def showdata(self):
    print("Name is ",self.name)
    print("City is ",self.city)

class Employee(Person):
  def __init__(self,nm,ct,jb,sl,ad):
    super().__init__(nm,ct)
    self.job=jb
    self.salary=sl
    self.advance=ad
  def showdata(self):
    super().showdata()
    print("Job is ",self.job)
    print("Salary is ",self.salary)
    print("Advance is ",self.advance)
  def payment(self):
    p=self.salary-self.advance
    print("payment is ",p)

class Worker(Person):
  def __init__(self,nm,ct,wg,wd):
    super().__init__(nm,ct)
    self.wages=wg
    self.wdays=wd
  def showdata(self):
    super().showdata()
    print("Wages is ",self.wages)
    print("Wdays is ",self.wdays)
  def payment(self):
    p=self.wages*self.wdays
    print("payment is ",p)

a=Person("Amit jain","Amrvati")
a.showdata()
b=Employee("Raj Rathi","Nagpur","Clerk",25000,5000)
b.showdata()
b.payment()
c=Worker("Raja Kumar","Raipur",500,25)
c.showdata()
c.payment()

Name is Amit Jain
City is Amravati
Name is Raja Kumar
City is Raipur
Wages is 500
Wdays is 25
Payment is 12500
Name is Raj Rathi
City is Nagpur
Job is Clerk
Salary is 25000
Advance is 5000
Payment is 20000

#Design 3 classes Person Test and Student from given Inheritance diagram.

class Person

Data members

Name
City

Member Functions

Person(n,c)
showdata()

class Test

Data members

Subject
Marks

Member Functions

Test(s,m)
showdata( )

class Student

Data members

RollNo

Member Functions

Student(r,n,c,s,m)
showdata( )

class Person:
  def __init__(self,name,city):
    self.name=name
    self.city=city
  def showdata(self):
    print("Name is ",self.name)
    print("City is ",self.city)

class Test:
  def __init__(self,subject,marks):
    self.subject=subject
    self.marks=marks
  def showdata(self):
    print("Subject is ",self.subject)
    print("Marks are ",self.marks)

class Student(Person,Test):
  def __init__(self,rollno,name,city,subject,marks):
    self.rollno=rollno
    Person.__init__(self,name,city)
    Test.__init__(self,subject,marks)
  def showdata(self):
    print("RollNo is",self.rollno)
    Person.showdata(self)
    Test.showdata(self)

a=Student(4117,"Raj Rathi","Amravati","CET",55)
a.showdata()

RollNo is 4117
Name is Raj Rathi
City is Amravati
Subject is CET
Marks are 55

CCITcoder

Introduction to Python

Conditional statements

Iterative statements

Functions

OOPs

Collection

Module and Exception

DateBase

Inherintance

GUI

Introduction to Python

Conditional statements

Iterative statements

Functions

OOPs

Collection

Module and Exception

DateBase

Inherintance

GUI

Inheritance

Types of Inheritance

Single level Inheritance

Multi-level Inheritance

Hierarchical Inheritance

Multiple Inheritance

Hybrid Inheritance