2.5.1 Exercise

Exercise 1: Basic Input and Output

Objective
Practice using the input() and print() functions to collect user input and display a message.

Instructions

1. Ask the user to enter their first name.
2. Ask the user to enter their last name.
3. Use the collected input to display a personalized greeting message, such as:
   "Hello, John Doe! Welcome to Python programming."

Example Output

Enter your first name: John  
Enter your last name: Doe  
Hello, John Doe! Welcome to Python programming.

Exercise 2: Converting Input to Integers and Performing Calculations

Objective
Learn how to convert input from strings to integers and perform basic arithmetic operations.

Instructions

1. Ask the user to enter two numbers.
2. Convert both inputs from strings to integers using int().
3. Calculate and display:
   • The sum of the two numbers
   • The difference between the first and second number
   • The product of the two numbers

Example Output

Enter first number: 8  
Enter second number: 3  
Sum: 11  
Difference: 5  
Product: 24

Exercise 3: Formatted Output Using f-strings

Objective
Use Python f-strings to produce a clean and readable output that includes user-provided values.

Instructions

1. Ask the user to enter their name.
2. Ask the user to enter their favorite number.
3. Convert the number to an integer.
4. Use an f-string to output a sentence like:
   "Alice's favorite number is 7."

Example Output

Enter your name: Alice  
Enter your favorite number: 7  
Alice's favorite number is 7.

Solutions

Solution to Exercise 1

first_name = input("Enter your first name: ")
last_name = input("Enter your last name: ")
print("Hello,", first_name, last_name + "! Welcome to Python programming.")

Solution to Exercise 2

num1 = int(input("Enter first number: "))
num2 = int(input("Enter second number: "))

print("Sum:", num1 + num2)
print("Difference:", num1 - num2)
print("Product:", num1 * num2)

Solution to Exercise 3

name = input("Enter your name: ")
fav_number = int(input("Enter your favorite number: "))

print(f"{name}'s favorite number is {fav_number}.")