title: subtype hierarchy
body: <p>So lets say I were to draw the class hierarchy of <code>List&lt;?&gt;</code>.  Would <code>List&lt;Object&gt;</code> be a subtype of <code>List&lt;?&gt;</code></p>
  
  <p>Then would <code>List&lt;Integer&gt;</code> be a subtype of <code>List&lt;Object&gt;</code> or would it be a subtype of <code>List&lt;?&gt;</code>?</p>
  
  <p>Thanks</p>