Python Program to Find Area of Rectangle using Class | Function

Python program to find area of rectangle using class and function.

In this article, you will learn how to make a python program to find area of rectangle using class and function.

 

Example

 

You should have knowledge of the following topics in python programming to understand these programs:

• Python input() function
• Python Oops
• Python Functions

 

An equation to Find the Area of a Rectangle

P = l * w

 

Where

 

In this article, we solve this problem in three methods:

1. Using the normal calculation
2. Using the Class
3. Using the function

 

Source Code

# Python Program to Find Area of Rectangle
print("Enter the length & width of the rectangle::\n")

l, w, a = float(input()), float(input()), None

# It will calculate the area of the rectangle
a = l * w

print("\nArea of rectangle = ", a, "units")

Run Program

Output

 

Explanation

In this given program, we have taken inputs 5 & 7 from the user via the system console. Then we applied the formula to calculate the area of these values.

Then this will return the 35.0 units of the above calculation.

 

---

Python Program to Find Area of Rectangle using Class

# Python Program to Find Area of Rectangle using Class
class Calculation():

    def __init__(self):
        self.length = 0.0
        self.width = 0.0
        self.area = 0.0

    def main(self):
        print("Enter the length & width of the rectangle::\n")

        self.length = float(input())
        self.width = float(input())

        self.calculateArea()

    # It will calculate area of the rectangle
    def calculateArea(self):
        self.area = self.length * self.width
        print("\nArea of rectangle = ", self.area, "units")

# It will create instance of the StudentData class
Calculation = Calculation()

Calculation.main()

Run Program

Output

 

---

Python Program to Find Area of Rectangle using Function

# Python Program to Find Area of Rectangle using Function

def CalculateArea():
    print("Enter the length & width of the rectangle::\n")

    l, w, a = float(input()), float(input()), None

    # It will calculate the area of the rectangle
    a = l * w

    print("\nArea of rectangle = ", a, "units")

CalculateArea()

Run Program

 

You should also read these things

Convert the Days into Years, Weeks, and Days in Python

C Program to Convert Celsius to Fahrenheit