made job-simulation.rb with method to fire and hire

Queue.rb

@@ -1,13 +1,23 @@
 class Queue
+  attr_reader :store
   def initialize
+    @store = Array.new
   end
-  
+
   def dequeue
+    @store.shift
   end
-  
+
   def enqueue(element)
+    @store << element
   end
-  
+
   def size
+    @store.length
   end
+
+  def empty?
+    size == 0
+  end
+
 end

Stack.rb

@@ -1,14 +1,23 @@
 class Stack
+  attr_reader :store
   def initialize
     @store = Array.new
   end
-  
+
   def pop
+    @store.pop
   end
-  
+
   def push(element)
+    @store << element
   end
-  
+
   def size
+    @store.length
   end
+
+  def empty?
+    size == 0
+  end
+
 end

job-simulation.rb

@@ -1,4 +1,42 @@
 require './Stack.rb'
 require './Queue.rb'
 
+waiting = Queue.new
+workers = Stack.new
 
+workers.push('one')
+workers.push('two')
+workers.push('three')
+workers.push('four')
+workers.push('five')
+workers.push('six')
+
+waiting.enqueue("seven")
+waiting.enqueue("eight")
+waiting.enqueue("nine")
+waiting.enqueue("ten")
+
+def roll
+  rand(1..6)
+end
+
+def rehire(workers, waiting)
+  num = roll
+  num.times do
+     fired = workers.pop
+     waiting.enqueue(fired)
+  end
+  num.times do
+    hired = waiting.dequeue
+    workers.push(hired)
+  end
+  #i'm going to puts num here so that you i can easily see the results of the roll
+  puts "#{num} was rolled."
+end
+
+rehire(workers, waiting)
+puts "Current workers: #{workers.store}"
+puts "On the wait list: #{waiting.store}"
+rehire(workers, waiting)
+puts "Current workers: #{workers.store}"
+puts "On the wait list: #{waiting.store}"