Match-Case Statements

Introduced in Python 3.10, the match-case statement provides a cleaner, more readable alternative to writing long chains of elif statements when checking a single variable against multiple exact values.

The case _ acts as the default wildcard catch-all (similar to else).
case _ is not mandatory but good to keep

Coding Assignment: Calculator

Problem Statement

Build an interactive calculator menu. The user enters two numbers and a mathematical operator symbol (+, -, *, /, **). Use a match-case statement on the operator string to perform the correct calculation and print the result. Include a check for division by zero.

Expected Output:

Enter first number: 10

Enter second number: 5

Enter operator (+, -, *, /, **): *

Result: 10 * 5 = 50.0

Solution

Coding Assignment: Smart Vending Machine

Problem Statement

Write a Python program that simulates an automated vending machine.

First, print a neat menu displaying the available snacks, their codes, and prices.
Then, prompt the user to enter a snack code ("A1", "B2", "C3", or "D4").
Use a match-case statement to check the code, display the dispensed item, and handle invalid entries using the default case (_).

Expected Output:

========================================

SMART VENDING MACHINE - ITEM LIST

========================================

[A1] Chocolate Bar - $1.25

[B2] Potato Chips - $1.50

[C3] Sparkling Water - $2.00

[D4] Gummy Bears - $1.75

----------------------------------------

Enter snack code (A1, B2, C3, D4): B2

Dispensing: Potato Chips - Price: $1.50

Enjoy your snack!

Solution

Coding Assignment: Recycling Bin Material Sorter

Write a Python program that simulates a smart recycling station sorter.

First, print a numbered menu titled RECYCLING BIN MATERIAL SORTER MENU displaying the available waste materials and their corresponding numbers.
Then, prompt the user to enter a choice number (1 through 4).
Use a match-case statement to match the number to the correct recycling bin color and category, handling invalid choices with the default case (_).

Expected Output :

==================================================

RECYCLING BIN MATERIAL SORTER MENU

==================================================

[1] Plastic

[2] Glass

[3] Paper

[4] Organic

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Enter material number (1-4): 2

🟢 Place in the Green Bin: Recyclable Glass Container.

Solution

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