# Beginner using a void function to calculate carpet cost in python

When it comes to calculating carpet cost in Python, there are several ways to approach the problem. In this article, we will explore three different solutions, each with its own advantages and disadvantages.

## Solution 1: Using a Void Function

One way to calculate carpet cost in Python is by using a void function. This approach involves defining a function that takes the necessary inputs (such as the dimensions of the room and the cost per square foot of the carpet) and performs the calculation without returning a value.

``````def calculate_carpet_cost(length, width, cost_per_sqft):
total_cost = length * width * cost_per_sqft
print("The total cost of the carpet is \$", total_cost)``````

In the above code, we define a function called `calculate_carpet_cost` that takes three parameters: `length`, `width`, and `cost_per_sqft`. The function calculates the total cost by multiplying the length, width, and cost per square foot, and then prints the result.

To use this function, you can simply call it with the appropriate arguments:

``calculate_carpet_cost(10, 12, 5.99)``

This will output the total cost of the carpet, which in this case would be \$719.4.

## Solution 2: Using a Return Statement

Another approach to calculating carpet cost in Python is by using a function that returns the calculated value instead of printing it. This allows you to store the result in a variable and use it for further calculations or display purposes.

``````def calculate_carpet_cost(length, width, cost_per_sqft):
total_cost = length * width * cost_per_sqft

In this code, the function `calculate_carpet_cost` is similar to the previous solution, but instead of printing the result, it returns it using the `return` statement.

To use this function, you can assign the returned value to a variable:

``````cost = calculate_carpet_cost(10, 12, 5.99)
print("The total cost of the carpet is \$", cost)``````

This will output the same result as before, but now you have the flexibility to use the calculated cost in other parts of your code.

## Solution 3: Using a Class

A more advanced approach to calculating carpet cost in Python is by using a class. This allows you to encapsulate the calculation logic and create instances of the class to perform the calculation for different sets of inputs.

``````class CarpetCalculator:
def __init__(self, length, width, cost_per_sqft):
self.length = length
self.width = width
self.cost_per_sqft = cost_per_sqft

def calculate_cost(self):
total_cost = self.length * self.width * self.cost_per_sqft

In this code, we define a class called `CarpetCalculator` with an `__init__` method that initializes the instance variables `length`, `width`, and `cost_per_sqft`. The class also has a method called `calculate_cost` that performs the calculation and returns the result.

To use this class, you can create an instance and call the `calculate_cost` method:

``````calculator = CarpetCalculator(10, 12, 5.99)
cost = calculator.calculate_cost()
print("The total cost of the carpet is \$", cost)``````

This will produce the same result as the previous solutions, but now you have the added benefit of encapsulation and reusability.

After considering these three solutions, the best option depends on your specific needs. If you only need to calculate the carpet cost once and don’t require the flexibility to reuse the result, Solution 1 (using a void function) may be sufficient. However, if you need to store the result for further calculations or display purposes, Solution 2 (using a return statement) would be more appropriate. If you anticipate the need to perform the calculation multiple times with different inputs, Solution 3 (using a class) provides the most flexibility and reusability.

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### 5 Responses

1. Daxton Cook says:

Solution 2 is like having a cheat code for carpet cost calculation! So handy!

2. Layne Duffy says:

Solution 2 seems more practical for beginners, but Solution 3 is intriguing. Thoughts?

3. Chaya says:

Solution 3 is cool, but why not use a magic spell to calculate carpet cost? 🧙‍♂️✨

4. Nellie says:

Solution 2: Using a return statement is way easier than Solution 3: Using a Class.

Solution 2 is cool and all, but Solution 3 using a class is way more elegant! #OOPforthewin