#24 Inheritance, Super Keyword, Polymorphism with example | Python Tutorial Series | EMC Academy

Inheritance: Inheritance is a mechanism in object-oriented programming where a class (child/subclass) inherits properties and behaviors from another class (parent/superclass). It allows the child class to reuse code and extend or modify the functionality of the parent class. For example, a class "Car" can inherit from a class "Vehicle" and inherit its attributes and methods.

Polymorphism: Polymorphism refers to the ability of an object to take on different forms or have multiple behaviors depending on the context. It allows objects of different classes to be treated as objects of a common superclass. For example, a "Shape" superclass can have multiple subclasses like "Circle" and "Rectangle," and each subclass can have its own implementation of a common method called "calculateArea()".

[gayathribaskaran]

Class Employee();
def__init__(self, name, salary);
Self.name =name
Self.salary= salary

Class Manager (Employee);
def__init__(Self, name, salary, department);
Super().__init__(name, salary)
Self.department=department

def display (Self);
Print("Self.name, Self.salary, self.department)

M1= Manager(" John", "50000", "CSE")
M1.display()

[smiley_boy_arjun_]

Q3
class vehicle():
def start(self):
print ("vehicle Start")
class car(vehicle):
def start(self):
print ("car is started ")
Swift=car()
Swift.start()

Output
car is started

[c-vj]

class Shape:
def area(self):
return 0
class Rectangle(Shape):
def area(self, length, breadth):
self.l=length
self.b=breadth
print(f"The lenght {self.l} and breadth {self.b} and the total {self.l*self.b}")

obj_01=Rectangle()
obj_01.area(12, 13)

[arunworld]

class employee():
def __init__(self, name, salary):
self.name=name
self.salary=salary

class manager(employee):
def __init__(self, name, salary, dept):
super().__init__(name, salary)
self.dept=dept

def display(self):
print("Name:", self.name, "Salary:", self.salary, "Dept:", self.dept)

m=manager("Arun", "10000", "Admin")
m.display()

output:
Name: Arun Salary: 10000 Dept: Admin

[I_am_groot...]

For 3rd question

class vehicle ():
def start(self):
print("vehicle started")

class car(vehicle):
def start(self):
print("car started")

a1 = car()
a1 . start()


RESULT :
car started

[bhuveneshwarparamjothy]

class employee():
def __init__(self, name, salary):
self.name=name
self.salary=salary

class manager(employee):
def __init__(self, name, salary, department):
super().__init__(name, salary)
self.department=department

def display(self):
print(self.name, self.salary, self.department)

m1=manager("Bhuven", "RM15000", "IT")
m1.display()

[saimanasab]

QN 4 with the help of user input:

class employee():
def __init__(self, nam, salar):
self.name=nam
self.salary=salar

class manager(employee):
def __init__(self, depart):
self.department=depart
super(). __init__ (nam, salar)

def display(self):
print(self.name, self.salary, self.department)

nam=input("Enter your name:")
salar=int(input("Your salary:"))
depart=input("Which department you are from?")
obj1=employee(nam, salar)
obj=manager(depart)
obj.display()

[prakashgunasekaran]

Hi Bro, could you please cover Regular expressions also ?

[dharshikanatesan]

class employee():
def __init__(self, name, salary):
self.name = name
self.salary = salary
class manager(employee):
def __init__(self, name, salary, dep):
super().__init__(name, salary)
self.dep = dep
def display(self):
print("Name : ", self.name)
print("salary : ", self.salary )
print("Departmet : ", self.dep)


o2 = manager("dharshika", 50000, "HR")
o2.display()

[princepanda]

def __init__(self, name, salary, department):
super(). __init__(name, salary, department)

[nvsbflims]

Sir 4th question is this correct sir
class Employee():
def __init__(self, name, salary):
self.name = name
self.salary =salary

class Manager(Employee):
def __init__(self, name, salary, dept):
self.dept = dept
super().__init__(name, salary)

def display(self):
print("Name :", self.name)
print("Salary :", self.salary)
print("Department :", self.dept)

m1 =
m1.display()

[Dante]

class employee():
def __init__(self, name, salary):
self.name=name
self.salary=salary

class manager(employee):
def __init__(self, name, salary, department):
super().__init__(name, salary)
self.department=department

def display(self):
print(self.name)
print(self.salary)
print(self.department)

m1=manager("ERAI", "20000", "SUPPORT")
m1.display()

[subashsmiles]

class vehicle():
def start(self):
print("Vehicle Started")
class car(vehicle):
def start(self):
print("Car started")

suzuki=car()
suzuki.start()

[saimanasab]

QN 2: (USER INPUT)

class person():
def __init__(self, name):
self.name=name

class student(person):
def __init__(self, name, grade):
super(). __init__ (name)
self.grade=grade
def display(self):
print(self.name, self.grade)

name=input("Enter your name:")
grade=float(input("Enter your grade:"))
obj=student(name, grade)
obj.display()

[shanmugapriyanr]

Super() keyword ah vachi constructor matum tha inherit panni use panna mudiyum ah ila yantha function nalum use pannikalam ah

[nisha__]

Last question super keyword use panaamale output varudhu
Apdi pana kudadha bro

[nisha__]

16.02 name ah student class la store panalam la bro ( self.name= name)
Bcz inherit panirukom la Apdi save pana output varudhu.
Apdi pana kudadha?

[nvsbflims]

Bro 3rd question ans is correct or not please tell bro

class Vehicle():
def start(self):
print("Vehicle Started...")

class Car(Vehicle):
def start(self):
print("Car Started...")

c1 = Car()
c1.start()

[KavithaSundharam]

Bro,
Self.name="success"
Self.salary="30000"
Entha mathiri variable use panna mudiyuma

[KavithaSundharam]

Class employee:
def__init__(self, name, salary):
Self.name="success"
Self.salary="20000"
Class manager (employee):.
def__init__(self, name, salary,
department):
super ().__init__(name,
salary)
self department="CSE"
def display(self):
print(self.name, self.salary,
self. department)
M1=manager()
M1.display()

ERROR:
TYPE ERROR: manager.__init__() missing 3 required positional arguments:"name", "salary", "department"

Entha program enna mistake nu sollunka bro