How to print Hour Glass Pattern in Ruby - Step by Step Examples
How to print Hour Glass Pattern in Ruby ?
Answer
To print an Hourglass Pattern in Ruby, we use nested loops. The outer loop controls the rows, and the inner loops control the spaces and stars (*) to form the pattern.
✐ Examples
1 Hourglass Pattern
In this example,
- We define a function
print_hourglass
that takes the desired number of rowsn
as a parameter. - We use two nested
for
loops, where the outer loop runs fromn
to 1 and the inner loops control the spaces and stars in each row. - Within the inner loops, we calculate the number of spaces and stars based on the current row number to form the hourglass pattern.
Ruby Program
def print_hourglass(n)
(1..n).reverse_each do |i|
puts ' ' * (n - i) + '*' * (2 * i - 1)
end
(2..n).each do |i|
puts ' ' * (n - i) + '*' * (2 * i - 1)
end
end
# Example usage
print_hourglass(5)
Output
********* ******* ***** *** * *** ***** ******* *********
Summary
In this tutorial, we learned How to print Hour Glass Pattern in Ruby language with well detailed examples.
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