title: Is there a way to find out what version of Java an applet was compiled in
body: <p>I have an older applet I built. It naturally will not run in the browsers today.
  Is there a way to find out what version of Java it was compiled in.</p>
  
  <p>Also, what version of Java can i use so that my clients do not get that annoying security message, "are you sure you ant to run this"</p>
  
  <p>Thirdly, will HTML5 with canvas be a better choice for the applet since it really just paints a pretty grid of images?</p>