Classe Queue

OrderedCollection subclass: #Queue
  instanceVariableNames: ''
  classVariableNames: ''
  poolDictionaries: '' !

!Queue class methods ! !

!Queue methods !
 
dequeue
        "retira"
    self removeFirst!

empty
        "vazia?"
    ^(self size = 0)!
  
enqueue: anObj
        "colocar"
    self addLast: anObj! !