title: Read Input until control+d
body: <p>I want to prompt the user to begin entering characters and I want them to be able to enter characters as long as they want until they hit control+d to exit.</p>
  
  <p>For example, they can type a string of numbers like:
  1234567
  and as soon as they decide to hit control+d the line that they entered will be displayed (so without having to hit return)</p>
  
  <p>I am thinking I'll need a buffered reader or something.  Any suggestions?</p>