title: error: while creating java package in a folder Javac: invalid flag :a
body: <p>I have a drive with name A and the windows cmd is not executing the following command i.e</p>
  <pre><code>javac -a a:\inspiron HelloWorld
  javac invalid flag: a
  Usage: javac &lt;option&gt; &lt;source files&gt;
  use -help for the list of possible options
  </code></pre>