Static methods behavior in Python - Mini Project: Build & Apply

Static methods behavior

📖 Scenario: Imagine you are creating a simple calculator class that can perform addition without needing to create an object first.

🎯 Goal: You will build a class with a static method that adds two numbers and then print the result.

📋 What You'll Learn

Create a class named Calculator

Inside the class, create a static method named add that takes two parameters a and b

The static method should return the sum of a and b

Call the static method add using the class name and print the result

💡 Why This Matters

🌍 Real World

Static methods are useful for utility functions that do not need to access or modify object state, like simple calculations or helpers.

💼 Career

Understanding static methods helps in writing clean, organized code in many programming jobs, especially when working with classes and objects.

1

Create the Calculator class

Create a class called Calculator with no methods or variables inside.

Python

# Create a class called Calculator
class Calculator:
    pass

Need a hint?

Use the class keyword followed by the class name and a colon.

2

Add a static method to the class

Inside the Calculator class, create a static method named add that takes two parameters a and b. Use the @staticmethod decorator above the method.

Python

class Calculator:
    # Add a static method named add with parameters a and b
    @staticmethod
    def add(a, b):
        pass

Need a hint?

Remember to use @staticmethod before the method and return the sum of a and b.

3

Call the static method

Call the static method add from the Calculator class with arguments 5 and 7, and store the result in a variable named result.

Python

class Calculator:
    @staticmethod
    def add(a, b):
        return a + b

# Call the static method add with 5 and 7 and store in result
result = Calculator.add(5, 7)

Need a hint?

Use the class name Calculator to call the static method add with the numbers 5 and 7.

4

Print the result

Print the value of the variable result to display the sum.

Python

class Calculator:
    @staticmethod
    def add(a, b):
        return a + b

result = Calculator.add(5, 7)

# Print the result
print(result)

Need a hint?

Use the print function to show the value stored in result.