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Print Out a Triangle

Print Out a Triangle

Learn about variables and loops, and use them to create the shape of a triangle.

We'll cover the following...

Printing out characters in shapes is often used as beginner programming exercise, because they are easy to understand and visually interesting programs.

Problem

Write a program to print out hashes in a triangle shape, as shown below:

#
##
###
####
#####
######
#######
########
Drawn shape of a triangle

Purpose

  • Develop the ability to analyze patterns

  • Learn about variables

  • Learn about looping

Analyze

Row

Number of hashes

1

1

2

2

3

3

...

...

n

n

Hints

Print out text

  • We can display text using the puts command: However, if we would like to ...