Control Flow Challenges and Projects

Great job finishing this module.

You have learned how to use:

• if
• if else
• elif
• comparison operators
• logical operators
• nested conditions
• match case
• validation

Now it is time to practice everything together.

Quick Challenges

Try to solve these on your own.

Challenge 1: Age Checker

Build a program that checks age.

Steps:

• Ask the user to enter their age
• If age is 18 or more, print:
  Adult
• Otherwise, print:
  Minor

Challenge 2: Even or Odd

Build a number checker.

Steps:

• Ask the user to enter a number
• If the number divided by 2 gives remainder 0, print:
  Even
• Otherwise, print:
  Odd

Challenge 3: Password Checker

Build a password checker.

Steps:

• Store the correct password as python123
• Ask the user to enter a password
• If the entered password matches the correct password, print:
  Access granted
• Otherwise, print:
  Wrong password

Challenge 4: Grade Checker

Build a grading program.

Steps:

• Ask the user to enter marks
• If marks are 80 or more, print:
  Grade A
• If marks are 60 or more, print:
  Grade B
• Otherwise, print:
  Grade C

Mini Projects

These projects combine many skills.

Project 1: Login System

Build a simple login checker.

Steps:

• Store the correct username as admin
• Store the correct password as python123
• Ask the user to enter a username
• Ask the user to enter a password

Rules:

• If both username and password are correct, print:
  Login successful
• Otherwise, print:
  Invalid login

Project 2: Ticket Checker

Build a cinema entry checker.

Steps:

• Ask the user to enter age
• Ask the user if they have a ticket (yes or no)

Rules:

• If age is 18 or more and ticket is yes, print:
  Welcome
• If age is 18 or more and ticket is no, print:
  Buy a ticket
• Otherwise, print:
  Too young

Project 3: Menu App

Build a menu program.

Steps:

• Ask the user to enter a choice

• Show these options:

  • 1 = Home
  • 2 = Profile
  • 3 = Settings

Rules:

• Use match case
• If user enters 1, print:
  Home Page
• If user enters 2, print:
  Profile Page
• If user enters 3, print:
  Settings Page
• Otherwise, print:
  Invalid option

Final Challenge

Build a student result system.

Steps:

• Ask the user to enter name
• Ask the user to enter score

Rules:

• If score is 80 or more, result is:
  Excellent
• If score is 50 or more, result is:
  Pass
• Otherwise, result is:
  Fail

Then print:

Name: Result

Example:

Sarah: Excellent

Real World Use Case

Every real app uses logic and validation. Login systems, school systems, stores, games, and websites all depend on decision-making.

Quiz

1. Which statement checks many conditions?
2. What does and mean?
3. What is validation?
4. When should you use match case?

Assignment

Choose one mini project and improve it by adding more rules or better messages.

Summary

You completed the Control Flow module and practiced real challenges using Python logic and decision-making.