LEARN PYTHON THROUGH SERIES OF ROBOT'S ACTIVITIES
A user-defined class
serves as a template or prototype from which objects can be built. Classes
offer a way to group functionality and data. A new class produces a new type of
object, enabling the creation of new instances of that type. Each instance of a
class may have characteristics connected to it to preserve its state. Class instances
may also contain methods for changing their state that is defined by their
class. Sana is working as a professor in a college. Sana had ordered the robot
named Tana, to monitor students of her college to improve the educational
methods, that is to say,
how well the students have
learned the content of each subject by conducting a series of tests or exams on
each student.
Sana gives the marks
obtained by the student to the robot, Tana, and similarly gives the completed
question paper to the robot. At present questions are asked from 5 subjects of
20 marks each from each subject.
The function of this task
is to assess whether the content of all 5 subjects is well understood by the
students based on how much each student has scored in these 5 subjects.
To do this, the robot
needs information about how each student wrote the answers to the related
questions in the 5 subjects,
and the robot has to
calculate the percentage of the student's score in each subject and convert it
into a percentage and submit it to the professor.
The job of Tana is to get
the given data, and marks of the students and, at the same time take the marks
of the students in each subject separately and convert it into percentages and
get the learning percentage of each subject.
Program 1:
[In]Class Student():
def __init__(self, name, roll, gen):
self.name=name
self.roll=roll
self.gen=gen
def show(self):
print("The student details are:
Name :", self.name, ", Roll
No: ", self.roll, ", Gender: ", self.gen)
#This comment prints the
student details.
[In]class Student():
def __init__(self, name, roll, gen):
self.name=name
self.roll=roll
self.gen=gen
def show(self):
print("The student details are:
Name :", self.name, ", Roll
No: ", self.roll, ", Gender: ", self.gen)
stu1=Student('raj',123,"male")
stu1.show()
[Out]The student details are:
Name : raj , Roll No: 123 , Gender: male
[In]class Science(Student):
def __init__(self, name, roll, gen):
super().__init__(name, roll, gen)
self.marks1=0
self.marks2=0
def test1marks(self, score1):
self.score1=score1
self.marks1 = self.marks1+ self.score1
[In]print("The
test 1 marks updated", self.marks1)
def test2marks(self, score2):
self.score2=score2
self.marks2 = self.marks2+ self.score2
[In]print("The
test 2 marks updated", self.marks2)
[In]stu1=Science('raji',123,'female')
[In]stu1.test1marks(100)
[Out]The test 1 marks updated
100
[In]stu1.test2marks(10)
[Out]The test 2 marks updated
10
Program 2:
In the second example, A
shopkeeper has to calculate the total price for 3 items bought by a customer.
The 3 items are moong, oil, and vegetables. The program is very simple to make
a class program that contains different functions such as _init_, and price.
The output of this program executes the price function with the prices of all
the groceries. This is available in the Ingredients class. The values of prices
are passed to the Ingredients class.
[In] class
Ingredients:
def __init__(self, m,o,c):
self.m=m
self.o=o
self.c=c
def price(self):
tot= self.m + self.o + self.c
print("The total price is Rs.",
tot)
p=Incredients(45,34,4)
p.price()
[Out] The
total price is Rs. 83
The
next program explains the functions of a class with more than one function.
[In]class Ingredients:
def
unitprice(self,moong,oil,veg):
self.moong=moong self.oil = oil
self.veg = veg
print("The unitprice of moong is
Rs",self.moong)
print("The unitprice of oil is
Rs",self.oil)
print("The unitprice of veg is
Rs",self.veg)
def
quantity(self,moonquan=float,oilquan=float, vegquan=float):
self.moonquan=moonquan
self.oilquan = oilquan
self.vegquan = vegquan
print("The quantity of moong is
",self.moonquan,"kg")
print("The quantity of oil is
",self.oilquan,"kg")
print("The quantity of veg is
",self.vegquan,"kg")
def
price(self,m=float,o=float,v=float,tot=float):
m=self.moong*self.moonquan
o=self.oil*self.oilquan
v=self.veg*self.vegquan
self.m =m
self.o =o
self.v =v
tot= self.m+self.o+self.v
print("The total price of the
groceries is Rs. ",tot)
p=Incredients()
p.unitprice(1,4,4)
p.quantity(0.5,1,4)
p.price()
[Out] The unitprice of moong is
Rs 1
The unitprice of oil is Rs
4
The unitprice of veg is Rs
4
The quantity of moong
is 0.5 kg
The quantity of oil
is 1 kg
The quantity of veg
is 4 kg
The total price of the
groceries is Rs. 20.5
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