title: not understanding what is internal array
body: <p>I'm having trouble understanding what an internal array means. I have an assignment that ask to implement a standard queue class using internal array and set the array to 12. Is internal array another word for dynamic array, static array, ...? What is internal array? Also, what is a fixed size array inside object. This is on c++.</p>
  
  <p>I thought is was asking to use a static array, fixed size array and pass by reference. As they are many ways to write a queue, just not sure which one does internal array falls under</p>
  
  <pre><code>cont int capacity = 12;
  typeddef int element;
  class Queue
  {
  public:
  ...
  void add(const element &amp;value);
  private:
  ...
  element myArray[capacity];
  }
  </code></pre>
  
  <p>Now I'm being told by a classmate that it means a fixed size array inside object.</p>