title: Java equivalent for System.Action in .NET
body: <p>In .NET under <code>System.Action</code> the following methods are available.</p>
  
  <ol>
  <li><code>Invoke()</code></li>
  <li><code>BeginInvoke(AsyncCallback, object)</code></li>
  <li><code>EndInvoke(IAsyncresult)</code></li>
  </ol>
  
  <p>How do I get the <em>Java</em> equivalent for the above methods.</p>
  
  <p>Thanks in advance.</p>