Simple Python Programs for Beginners

Program:

# This is a simple Python program to print text on the screen

# The print() function is used to display output
print("Hello, World!")

Output: 
Hello, World!

Add Two Numbers – Program 2 #

Program: 

# This program adds two numbers provided by the user

# Input from user (input() returns a string, so we convert it to float or int)
num1 = float(input("Enter first number: "))
num2 = float(input("Enter second number: "))

# Add the two numbers
sum = num1 + num2

# Display the result
print("The sum of", num1, "and", num2, "is:", sum)

Output: 
Enter first number: 10
Enter second number: 20
The sum of 10.0 and 20.0 is: 30.0

Maximum of Two Numbers – Program 3 #

Program: 

# This program finds the maximum of two numbers

# Take two numbers as input
a = float(input("Enter first number: "))
b = float(input("Enter second number: "))

# Use if-else condition to compare the numbers
if a > b:
    print(a, "is greater than", b)
elif a < b:
    print(b, "is greater than", a)
else:
    print("Both numbers are equal")

Output:
Enter first number: 10
Enter second number: 23
23.0 is greater than 10.0

Check if a Number is Positive, Negative, or 0 – Program 4 #

Program:

# Program to check if a number is positive, negative, or zero

# Take input from user
num = float(input("Enter a number: "))

# Check conditions using if-elif-else
if num > 0:
    print("The number is positive.")
elif num < 0:
    print("The number is negative.")
else:
    print("The number is zero.")

Output: 
Enter a number: 30
The number is positive.

Check if a Number is Odd or Even – Program 5 #

Program:

# Program to check if a number is odd or even

# Take integer input from user
num = int(input("Enter an integer: "))

# Use modulus operator to find remainder when divided by 2
if num % 2 == 0:
    print(num, "is an even number.")
else:
    print(num, "is an odd number.")

Output: 
Enter an integer: 20
20 is an even number.

Check Leap Year – Program 6 #

Program:

# Program to check whether a given year is a leap year or not

# Take year input from user
year = int(input("Enter a year: "))

# Leap year rules:
# 1. If divisible by 4 → possible leap year
# 2. If divisible by 100 → must also be divisible by 400
if (year % 400 == 0) or (year % 4 == 0 and year % 100 != 0):
    print(year, "is a leap year.")
else:
    print(year, "is not a leap year.")

Output: 
Enter a year: 2024
2024 is a leap year.

Swap Two Numbers using three variables – Program 7 #

Program:

# Program to swap two variables

# Take input from user
x = input("Enter value of x: ")
y = input("Enter value of y: ")

# Display original values
print("Before swapping: x =", x, "y =", y)

# Swap values using a temporary variable
temp = x
x = y
y = temp

# Display swapped values
print("After swapping: x =", x, "y =", y)

Output: 
Enter value of x: 10
Enter value of y: 20
Before swapping: x = 10 y = 20
After swapping: x = 20 y = 10

Swap Two Numbers using two variables – Program 8 #

Program:

# Program to swap two variables

# Take input from user
x = input("Enter value of x: ")
y = input("Enter value of y: ")

# Display original values
print("Before swapping: x =", x, "y =", y)

# Swap values using a temporary variable
temp = x
x = y
y = temp

# Display swapped values
print("After swapping: x =", x, "y =", y)

Output: 
Enter value of x: 10
Enter value of y: 20
Before swapping: x = 10 y = 20
After swapping: x = 20 y = 10

Generate a Random Number – Program 9 #

Program: 

# Program to generate a random number between two values

# Import the random module
import random

# Take range input from user
start = int(input("Enter start value: "))
end = int(input("Enter end value: "))

# Generate a random number between start and end
rand_num = random.randint(start, end)

# Display the random number
print("Random number between", start, "and", end, "is:", rand_num)

Output: 
Enter start value: 20
Enter end value: 80
Random number between 20 and 80 is: 31

Convert Kilometers to Miles – Program 10 #

Program:

# Program to convert distance from kilometers to miles

# 1 kilometer = 0.621371 miles
km = float(input("Enter distance in kilometers: "))

# Convert to miles
miles = km * 0.621371

# Display the result
print(f"{km} kilometers is equal to {miles} miles.")

Output: 
Enter distance in kilometers: 100
100.0 kilometers is equal to 62.137100000000004 miles.

Convert Celsius to Fahrenheit – Program 11 #

Program: 

# Program to convert temperature from Celsius to Fahrenheit

# Formula: F = (C × 9/5) + 32
celsius = float(input("Enter temperature in Celsius: "))

# Convert to Fahrenheit
fahrenheit = (celsius * 9/5) + 32

# Display the result
print(f"{celsius}° Celsius is equal to {fahrenheit}° Fahrenheit.")

Output: 
Enter temperature in Celsius: 40
40.0° Celsius is equal to 104.0° Fahrenheit.

Find the Square Root – Program 12 #

Program:

# Program to find the square root of a number

# Import the math module to use the sqrt() function
import math

# Take input from user
num = float(input("Enter a number: "))

# Calculate the square root using math.sqrt()
sqrt = math.sqrt(num)

# Display the result
print("The square root of", num, "is:", sqrt)

Output:
Enter a number: 25
The square root of 25.0 is: 5.0

Calculate the Area of a Triangle – Program 13 #

Program:

# Program to find the area of a triangle using base and height

# Take input from user
base = float(input("Enter the base of the triangle: "))
height = float(input("Enter the height of the triangle: "))

# Calculate area using (1/2) * base * height
area = 0.5 * base * height

# Display the result
print("The area of the triangle is:", area)

Output:
Enter the base of the triangle: 10
Enter the height of the triangle: 30
The area of the triangle is: 150.0

Find Area of a Circle – Program 14 #

Program: 

# Program to calculate the area of a circle

# Import math module to use pi constant
import math

# Take input for radius
radius = float(input("Enter the radius of the circle: "))

# Calculate area using the formula: πr²
area = math.pi * radius ** 2

# Display the result
print("The area of the circle is:", area)

Output:
Enter the radius of the circle: 20
The area of the circle is: 1256.6370614359173

 Find the Largest Among Three Numbers – Program 15 #

Program:

# Program to find the largest among three numbers

# Take three numbers as input
a = float(input("Enter first number: "))
b = float(input("Enter second number: "))
c = float(input("Enter third number: "))

# Compare using if-elif-else statements
if (a >= b) and (a >= c):
    largest = a
elif (b >= a) and (b >= c):
    largest = b
else:
    largest = c

# Display the result
print("The largest number is:", largest)

Output: 
Enter first number: 30
Enter second number: 50
Enter third number: 40
The largest number is: 50.0

 Display the Multiplication Table – Program 16 #

Program:

# Program to display the multiplication table of a number

# Take integer input from user
num = int(input("Enter a number to display its multiplication table: "))

# Use a for loop to print table from 1 to 10
print(f"Multiplication Table of {num}")
for i in range(1, 11):
    print(f"{num} x {i} = {num * i}")

Output: 
Enter a number to display its multiplication table: 5
Multiplication Table of 5
5 x 1 = 5
5 x 2 = 10
5 x 3 = 15
5 x 4 = 20
5 x 5 = 25
5 x 6 = 30
5 x 7 = 35
5 x 8 = 40
5 x 9 = 45
5 x 10 = 50

Print ASCII Value of a Character – Program 17 #

Program: 

# Program to find ASCII value of a given character

# Take a single character input
char = input("Enter a character: ")

# Use ord() function to get ASCII value
ascii_value = ord(char)

# Display the result
print(f"The ASCII value of '{char}' is {ascii_value}.")

Output: 
Enter a character: A
The ASCII value of 'A' is 65.

Compute the Power of a Number (using built-ins) – Program 18 #

Program: 

# Program to compute the power of a number using built-in function

# Take base and exponent as input
base = float(input("Enter the base number: "))
exponent = float(input("Enter the exponent: "))

# Calculate power using pow() function
result = pow(base, exponent)

# Display the result
print(f"{base} raised to the power of {exponent} is {result}.")

Output: 
Enter the base number: 2
Enter the exponent: 3
2.0 raised to the power of 3.0 is 8.0.

Find Simple Interest – Program 19 #

Program:

# Program to calculate Simple Interest

# Take input for Principal, Rate, and Time
principal = float(input("Enter the principal amount: "))
rate = float(input("Enter the rate of interest: "))
time = float(input("Enter the time in years: "))

# Formula for Simple Interest: (P × R × T) / 100
simple_interest = (principal * rate * time) / 100

# Display the result
print(f"Simple Interest = {simple_interest}")

Output: 
Enter the principal amount: 1000
Enter the rate of interest: 8
Enter the time in years: 5
Simple Interest = 400.0

Find Compound Interest – Program 20 #

Program:

# Program to calculate Compound Interest

# Common inputs
principal = float(input("Enter principal (P): "))
rate = float(input("Enter annual interest rate in % (R): "))
time = float(input("Enter time in years (T): "))

# Compounded annually
amount_annual = principal * (1 + rate / 100) ** time
compound_interest_annual = amount_annual - principal

print("\n--- Compounded Annually ---")
print(f"Amount (A) = {amount_annual:.2f}")
print(f"Compound Interest (CI) = {compound_interest_annual:.2f}")


Output: 
Enter principal (P): 10000
Enter annual interest rate in % (R): 8
Enter time in years (T): 5

--- Compounded Annually ---
Amount (A) = 14693.28
Compound Interest (CI) = 4693.28