title: how to set SimpleDateFormat "W" use the MONDAY is first day of Week?
body: <p>SimpleDateFormat &quot;W&quot; default set SUNDAY is first day of week,ex:</p>
  <pre><code>SimpleDateFormat f = new SimpleDateFormat(&quot;W&quot;); 
  format.f(new Date()); 
  </code></pre>
  <p>i want to set &quot;W&quot; first day is MONDAY,i try:</p>
  <pre><code>SimpleDateFormat f = new SimpleDateFormat(&quot;W&quot;); 
  Calendar c=Calendar.getInstance(); 
  c.setTimeInMillis(input); 
  c.setFirstDayOfWeek(Calendar.MONDAY); 
  format.format(c.getTime()) 
  </code></pre>
  <p>but no effect.</p>