Area of square in python using class

This article is created to cover some programs in Python, to find and print area of a square based on the length of its side, entered by user at run-time. Here are the list of programs:

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Formula to Find Area of Square
Find Area of Square
Find Area of Square using Function
Find Area of Square using Class
How do you code an area in Python?
What does square () do in Python?
How do you program the area of a rectangle in Python?

Find Area of Square without Function
Find Area of Square using User-defined Function
Using Class and Object

Formula to Find Area of Square

To find area of a square, use:

Here area indicates to area value and len indicates to length value of square

Find Area of Square

To find area of a square in Python, you have to ask from user to enter the side length. Now use the formula to find and print the area value as shown in the program given below:

print("Enter the Side Length of Square: ")
l = float(input())
a = l*l
print("\nArea = ", a)

Here is the initial output produced by this program:

Now supply the input say 6 as side length of square to find and print its area based on the given value of its side length as shown in the snapshot given below:

Find Area of Square using Function

This program is created using a user-defined function named areaOfSquare(). This function takes side length as its argument and returns the area value. The return value of this function gets initialized to a. Now print the value of a as output. That's it:

def areaOfSquare(s):
    return s*s

print("Enter the Side Length of Square: ", end="")
l = float(input())
a = areaOfSquare(l)
print("\nArea = {:.2f}".format(a))

Here is its sample run with user input, 43.23 as side length of square:

Find Area of Square using Class

This is the last program on finding area of a square, using class and object, an object-oriented feature of Python. The program is little similar to the program created using function. The only difference is, we've to call the member function areaOfSquare() of class using its object through dot (.) operator.

Note - Before accessing any member function of a class using an object say obj, the properties of class must be assigned to it. Therefore through the statement, obj = CodesCracker(), we've done the job.

class CodesCracker:
    def areaOfSquare(self, s):
        return s*s

print("Enter the Side Length of Square: ", end="")
l = float(input())

obj = CodesCracker()
a = obj.areaOfSquare(l)

print("\nArea = {:.2f}".format(a))

This program produces the same output as of previous program.

Same Program in Other Languages

Java Calculate Area of Square
C Calculate Area of Square
C++ Calculate Area of Square

Python Online Test

« Previous Program Next Program »

This is a Python Program to find the area of a rectangle using classes.

Problem Description

The program takes the length and breadth from the user and finds the area of the rectangle using classes.

Problem Solution

1. Take the value of length and breadth from the user.
2. Create a class and using a constructor initialise values of that class.
3. Create a method called as area and return the area of the class.
4. Create an object for the class.
5. Using the object, call the method area() with the parameters as the length and breadth taken from the user.
6. Print the area.
7. Exit

Program/Source Code

Here is the source code of the Python Program to take the length and breadth from the user and find the area of the rectangle. The program output is also shown below.

class rectangle():
    def __init__(self,breadth,length):
        self.breadth=breadth
        self.length=length
    def area(self):
        return self.breadth*self.length
a=int(input("Enter length of rectangle: "))
b=int(input("Enter breadth of rectangle: "))
obj=rectangle(a,b)
print("Area of rectangle:",obj.area())
 
print()

Program Explanation

1. User must enter the value of length and breadth.
2. A class called rectangle is created and the __init__() method is used to initialise values of that class.
3. A method called as area, returns self.length*self.breadth which is the area of the class.
4. An object for the class is created.
5. Using the object, the method area() is called with the parameters as the length and breadth taken from the user.
6. The area is printed.

Runtime Test Cases

 
Case 1:
Enter length of rectangle: 4
Enter breadth of rectangle: 5
Area of rectangle: 20	
 
Case 2:
Enter length of rectangle: 15
Enter breadth of rectangle: 13
Area of rectangle: 195

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How do you code an area in Python?

Python program to find area and perimeter of a rectangle.

Firstly, we will take input from the user for length and breadth using the input() function..

Now, we will calculate the area of a rectangle by using the formula Area = w * h..

Next, we are calculating the perimeter of a rectangle Perimeter = 2 * (w + h).

What does square () do in Python?

Square Roots in Mathematics The Python ** operator is used for calculating the power of a number. In this case, 5 squared, or 5 to the power of 2, is 25. The square root, then, is the number n, which when multiplied by itself yields the square, x. In this example, n, the square root, is 5.