title: How to change the defaults system java encode form in windows?
body: <p>When I tried to compile (use javac)some java sources files include a comment line which has some unrecognized char like ascii code 129 (~A), error got.</p>
  
  <p>The sources code looks like the following:</p>
  
  <pre><code> // ascii 129 is ? (Acutally it show ~A in VIM but show ? when I directly copy it here)
  </code></pre>
  
  <p>The above code line is a comment, it should not cause any error, but if it did, I think it should be a problem about the jave encode form, how can I solve this problem?</p>
  
  <p>Thanks.</p>
  
  <p>Wa</p>