Ruby - Generate a Random Number

1. Introduction

Random numbers are essential in computing for various applications such as gaming, cryptography, simulations, and more. Ruby provides straightforward methods to generate random numbers. This guide will walk you through a Ruby program that generates a random number within a given range.

2. Program Steps

1. Initialize your Ruby environment.

2. Define a range within which the random number should be generated.

3. Utilize Ruby's built-in methods to generate a random number.

4. Display the generated random number to the user.

3. Code Program

# Define a range for the random number (e.g., between 1 and 100)
range_start = 1
range_end = 100
# Generate a random number within the defined range
random_number = rand(range_start..range_end)
# Display the generated random number
puts "Your random number between #{range_start} and #{range_end} is: #{random_number}"

Output:

Your random number between 1 and 100 is: 57
(Note: The actual number might vary on each run since it's random)

Explanation:

1. range_start and range_end: These variables define the range within which we want our random number to be generated.

2. rand(range_start..range_end): The rand method is used to generate a random number in Ruby. When given a range like range_start..range_end, it returns a random number within that range (inclusive).

3. puts: This command is used to display messages to the console. Here, it informs the user of the generated random number.