This repository contains simple Python practice programs designed to improve logic building and problem-solving skills.
The goal is to start from very basic concepts and gradually move towards more challenging problems.

1. Hello World with Name

   • A beginner program that prints "Hello world, <your name>".
   • Purpose: Understand Python syntax and the print() function.

2. Number is Even or Odd

   • A program that checks whether a given number is even or odd.
   • Purpose: Practice conditional statements (if-else) and modulus operator (%).

3. Factorial of a Number

   • A program that computes the factorial of a given number.
   • Purpose: Practice loops/recursion and mathematical logic.
   • Example Input: 5
   • Example Output: 120

4. Swap Two Numbers

   • A program that swaps the values of two numbers using a temporary variable.
   • Purpose: Practice variables and value swapping.

5. Convert Integer into Decimal

   • A program that converts an integer input into a decimal value using the decimal module.
   • Purpose: Practice type conversion and formatting output.

6. Table of a number

   • A program that prints the multiplication table of a number entered by the user.
   • Purpose: Practice for loops and basic arithmetic.

7. Area of a Circle

   • A program that calculates the area of a circle using the formula π × r².
   • Purpose: Practice mathematical formulas and formatted output.

8. Perimeter of a Rectangle

   • A program that calculates the perimeter of a rectangle using the formula 2 × (length + width).
   • Purpose: Practice mathematical formulas and user input handling.

9. Check Positive, Negative or Zero

   • A program that checks whether a given number is positive, negative, or zero.
   • Purpose: Practice conditional statements (if-elif-else).

10. Maximum Between Three Numbers

    • A program that finds the maximum among three numbers using conditional statements.
    • Purpose: Practice nested conditions and comparison operators.

11. Middle Number Among Three Numbers

    • A program that finds the middle number in a group of three numbers.
    • Purpose: Practice logical operators (and, or) and conditional statements.

12. Sum of Numbers from 1 to n

    • A program that calculates the sum of all numbers from 1 to n using a while loop.
    • Purpose: Practice loops, counters, and accumulation logic.

13. Print Even Numbers Between 1 to n using While Loop

📖 Description This program takes an integer n as input and prints all the even numbers between 1 and n using a while loop.
If the given number is less than 2, the program informs that no even numbers exist in the range.

14. Check if a String is Palindrome or Not

📖 Description: This program checks whether a given string is a palindrome or not.
A palindrome is a word, phrase, number, or sequence of characters that reads the same forward and backward, ignoring case and spaces.

Examples of palindromes:

• madam
• racecar
• Never odd or even

📝 Logic

• Convert the input string to lowercase.
• Remove spaces to handle multi-word strings.
• Reverse the string using slicing (s[::-1]).
• Compare the original string with its reversed version.
• If they match → It's a palindrome, otherwise not.

15. Check Voting Eligibility

📖 Description: This program checks whether a person is eligible to vote based on their age.
According to general rules, a person must be 18 years or older to vote.

📝 Logic

• Take the user's age as input.
• If age is greater than or equal to 18 → Eligible to vote.
• Otherwise → Not eligible to vote.

16. Check Whether a Character is a Vowel or Not

📖 Description: This program checks whether a given character is a vowel or not.
Vowels are: a, e, i, o, u (both uppercase and lowercase).

📝 Logic

• Take a character as input.
• Check if it belongs to the set of vowels (a, e, i, o, u, A, E, I, O, U).
• If yes → Print that it is a vowel.
• Otherwise → Print that it is not a vowel.

17. Calculate Body Mass Index (BMI)

📖 Description: This program calculates the Body Mass Index (BMI) based on the user's weight (in kilograms) and height (in meters).
The BMI is a measure that helps classify whether a person is underweight, normal weight, overweight, or obese.

📝 Logic

• Take weight (kg) and height (m) as input from the user.
• Use the formula BMI = weight / (height ** 2).
• Round the result to 2 decimal places.
• Handle invalid (non-numeric) input using try-except.

18. Check if a Number is Divisible by Another Number

📖 Description: This program checks whether a given number (dividend) is divisible by another number (divisor).
It ensures that the divisor properly divides the dividend without leaving a remainder.

📝 Logic

• Take two numbers as input:
  • First number → Dividend
  • Second number → Divisor
• Use the modulus operator (%) to check divisibility.
• If num1 % num2 == 0 → The number is divisible.
• Otherwise → It is not divisible.
• Handle invalid inputs with try-except.

19. Calculate the Area of a Triangle

📝 Logic

• Take the base and height of the triangle as input.
• Apply the formula area = 0.5 * base * height.
• Display the result.
• Handle invalid (non-numeric) inputs with try-except.

20. Reverse a Name Entered by the User

📖 Description: This program takes a name as input and prints it in reverse order.
It also validates that the input contains only alphabetic characters.

📝 Logic

• Take the user's name as input.
• Validate that the input contains only alphabets (isalpha()).
• Reverse the string using slicing ([::-1]).
• Print the reversed name.
• Handle invalid inputs using try-except.

1. Clone the repository:

  git clone https://github.com/muqadasejaz/python-practice-programs.git

2. Run a program:

python 01_hello_world.py
python 02_even_or_odd.py
python 03_factorial of number.py
python 04_swap two numbers.py
python 05_convert_integer_into_decimal.py
python 06_table_of_a_number.py
python 07_area_of_circle.py
python 08_perimeter_of_rectangle.py
python 09_nature_of_a_number.py
python 10_maximum_number.py
python 11_find_middle_number_among_three_numbers.py
python 12_sum_of_numbers_from_1_to_n.py
python 13_even_num_between_1_to_n.py
python 14_string_palindrome_or_not.py
python 15_check_voting_eligibility.py
python 16_vowel_or_not.py
python 17_Calculate_BMI.py
python 18_divisibility.py
python 19_area_of_triangle.py
python 20_reverse_name.py

• Strengthen logical thinking through coding
• Practice Python basics step by step
• Build a foundation for solving larger coding problems
• Encourage consistency in problem-solving practice

• More beginner-friendly programs (loops, functions, lists)
• Intermediate logic-based problems (patterns, recursion, searching/sorting)
• File handling and exception handling examples
• Small projects combining multiple concepts

Muqadas Ejaz

BS Computer Science (AI Specialization)

AI/ML Engineer

Data Science & Gen AI Enthusiast

📫 Connect with me on LinkedIn

🌐 GitHub: github.com/muqadasejaz

This project is open-source and available under the MIT License.