title: List Arrary Double[] entering values
body: <p>Using the examples below the 2nd part I see how to add values to a single dim array.  But the 2 dim array I dont yet understand.  In the 1st example the 1,2,3 I need to get from a database. The DB part I have figured out but how to put in the values I dont know. 
  If I was using an array it would be </p>
  
  <pre><code>myarray[row][column] = value;
  </code></pre>
  
  <p>so how do I do this with the List?</p>
  
  <p>mylist.add --- something?</p>
  
  <pre><code>    List&lt;double []&gt; // creates a list that stores arrays of doubles.
  
  List&lt;double []&gt; myList = new ArrayList&lt;Double&gt;();
  myList.add(new double [] {1,2,3});
  myList.add(new double [] {4,5,6});
  
  
  
  List&lt;Double&gt; myList = new ArrayList&lt;Double&gt;();
  myList.add(1);
  myList.add(2);
  myList.add(3);
  </code></pre>