mjstrasser / letter-diamond

Simple code to generate a diamond-shaped printout of letters from A to Z.

letter-diamond

A simple program that prints out diamond-shaped patterns of letters.

Usage

Run from this directory using:

./go.sh LETTER [LETTER ...]

Where LETTER is an upper- or lower-case letter from A to Z. Lower-case letters are converted to upper-case. Multiple letters can be specified, separated by spaces.

For example:

./go.sh C f
  A
 B B
C   C
 B B
  A
     A
    B B
   C   C
  D     D
 E       E
F         F
 E       E
  D     D
   C   C
    B B
     A

On unrecognised input the program prints the message INVALID INPUT.

If the program has not been compiled, SBT will compile and test it first.

Prerequisites

Scala and SBT to build.

On Mac, Homebrew installs both with:

brew install scala
brew install sbt

Java is a pre-requisite for Scala (you knew that already, didn’t you).