title: Add months to days using joda-time
body: <p>I need to create a method that takes a number of days and a number of months, add the two, and then returns the resulting number of days.</p>
  
  <pre><code>public int addMonthsToDays(int months, int days);//interface
  </code></pre>
  
  <p>I think of using joda DateTime, but there is no method for getting the total days. Here is an example implementation:</p>
  
  <pre><code>public int addMonthsToDays(int months, int days){
      DateTime dateTime = new DateTime().plusDays(days).plusMonths(months);
    return // what do I return?
  }
  </code></pre>
  
  <p><strong>Additional Note</strong></p>
  
  <p>I know some people will misread the above and come out with a  number of questions, so in anticipation:</p>
  
  <ul>
  <li>I want the number of days from today, not from 1 jan 1970</li>
  <li>I don't have to use DateTime, the implementation is just what I have tried. </li>
  <li>The goal is to implement the interface <code>public int addMonthsToDays(int months, int days)</code> and return the new number of days from today.</li>
  <li>I am happy to answer additional questions</li>
  </ul>