title: Get Week number from given date
body: <p>I trying to get the week number for the date given in Android. I am trying the following I don't get the results if I enter for janurary? </p>
  
  <p>Can somebody help me fix this?</p>
  
  <pre><code>Calendar now = Calendar.getInstance();
  now.set(Calendar.YEAR,2015);
  now.set(Calendar.MONTH,00);
  now.set(Calendar.DATE, 12);
  Log.e("week","Number "+ now.get(Calendar.WEEK_OF_YEAR));
  </code></pre>
  
  <p>Above results it is blank...I am not getting any log at all.. The same if I enter 01 I get the week number 7.</p>
  
  <p>Let me know!</p>