title: Add item to Apple
body: <p>I am trying to create a method that will add an apple. Each apple object in the list contains a separate list within the that store apples them. I am just confused and how to break this whole thing down.
    
  Here's how i have this all set up....</p>
  
  <pre><code>public class CustomerDatabase {
      private ArrayList&lt;Customer&gt; customerList = null;
  
      public CustomerDatabase() {
          customerList = new ArrayList&lt;&gt;();
      }
  }
  </code></pre>