title: Convert string to day of week (not exact date)
body: <p>I'm receiving a <code>String</code> which is a spelled out day of the week, e.g. Monday. Now I want to get the constant integer representation of that day, which is used in <code>java.util.Calendar</code>.</p>
  
  <p>Do I really have to do <code>if(day.equalsIgnoreCase("Monday")){...}else if(...){...}</code> on my own? Is there some neat method? If I dig up the <code>SimpleDateFormat</code> and mix that with the <code>Calendar</code> I produce nearly as many lines as typing the ugly if-else-to-infitity statetment.</p>