prihandi

# This one for terminal output
<?php 
$panjang = 10;
function double_pyramid($limit) { 
  global $panjang;
  if ($limit > 0) { 
  	echo str_repeat(' ', $panjang - $limit ).str_repeat('*', 2 * $limit - 1)."\n"; 
  	if ($limit > 1) {
  	  double_pyramid($limit - 1); 
  	  echo str_repeat(' ', $panjang - $limit ).str_repeat('*', 2 * $limit - 1)."\n";

prihandi

#Answer for Formulatrix Software Engineering Object-Oriented Test

I used Java to create this answer.
This answer Implementing a Formulatrix Queue class from an Queue interface that can accept integers for its capacity (defined in Object initialization) The Formulatrix Queue class below also have 2 methods as required in the question (enqueue and dequeue)

This is the code ###Queue.java