title: Calculating the difference between two Java date instances
body: <p>I'm using Java's <code>java.util.Date</code> class in Scala and want to compare a <code>Date</code> object and the current time. I know I can calculate the delta by using getTime():</p>
  
  <pre><code>(new java.util.Date()).getTime() - oldDate.getTime()
  </code></pre>
  
  <p>However, this just leaves me with a <code>long</code> representing milliseconds. Is there any simpler, nicer way to get a time delta?</p>