title: How to use karel.jar in eclipse without installing the Stanford version of eclipse and with JRE7?
body: <p>I'm trying to play with Karel the robot as proposed in the CS106A online course from Stanford University. I do not want to install the old version of Java and eclipse as suggested by the documentation. I found tutorials explaining how to do it, on a standalone eclipse installation, and even a thread in stackoverflow, but they are all based on JRE6.</p>
  
  <p>Is there a way to make it work with JFE7?</p>
  
  <p>Thanks in advance.</p>
  
  <p>Additional questions, that I will probably find obvious in the coming weeks:</p>
  
  <ul>
  <li>Why does this library not work with JRE7? (I expect newer lib not to work with older JRE, but no the contrary)</li>
  <li>How do you force the compilation with an older JRE in eclipse? Can you do it without installing JRE6?</li>
  <li>How can I know the compatibility of the .jar file?</li>
  </ul>
  
  <p>Thanks again.</p>