If, elsif, else statements in Ruby - Mini Project: Build & Apply

If, elsif, else statements

📖 Scenario: You are creating a simple program that decides what to wear based on the weather temperature.

🎯 Goal: Build a Ruby program that uses if, elsif, and else statements to suggest clothing based on temperature.

📋 What You'll Learn

Create a variable called temperature with an integer value.

Create a variable called hot_threshold with an integer value.

Use if, elsif, and else statements to decide clothing.

Print the clothing suggestion.

💡 Why This Matters

🌍 Real World

Decision making based on conditions is common in apps that respond to user input or environmental data, like weather apps.

💼 Career

Understanding conditional statements is essential for programming logic in any software development role.

1

DATA SETUP: Create the temperature variable

Create a variable called temperature and set it to 30.

Ruby

# Create a variable called temperature and set it to 30
# Your code here

Need a hint?

Use temperature = 30 to create the variable.

2

CONFIGURATION: Create the hot_threshold variable

Create a variable called hot_threshold and set it to 25.

Ruby

temperature = 30
# Create a variable called hot_threshold and set it to 25
# Your code here

Need a hint?

Use hot_threshold = 25 to create the variable.

3

CORE LOGIC: Use if, elsif, else to decide clothing

Use if, elsif, and else statements with the variables temperature and hot_threshold to create a variable called clothing that is:
- "Wear shorts" if temperature is greater than hot_threshold
- "Wear a jacket" if temperature is between 15 and hot_threshold (inclusive)
- "Wear a coat" if temperature is less than 15

Ruby

temperature = 30
hot_threshold = 25
# Use if, elsif, else statements to set clothing
# Your code here

Need a hint?

Use if, elsif, and else with comparisons to set clothing.

4

OUTPUT: Print the clothing suggestion

Write a puts statement to print the value of the variable clothing.

Ruby

temperature = 30
hot_threshold = 25
if temperature > hot_threshold
  clothing = "Wear shorts"
elsif temperature >= 15 && temperature <= hot_threshold
  clothing = "Wear a jacket"
else
  clothing = "Wear a coat"
end
# Print the clothing variable
# Your code here

Need a hint?

Use puts clothing to print the suggestion.