title: How to extract ONLY the contents of the JDK installer
body: <p>I just downloaded the Java SDK/JDK versions 5 and 6, and I just need the development tools (and some libraries) contained in the installation packages, I don't need to perform an installation and that's why I was only looking for a zip package at first (for Windows there is only an exe installation file), I only need to extract the contents of the installation packages, I think this can be done from the command line but so far I haven't found how to do this (I already considered WinRar and 7-Zip, but I really want to find how to do it without using these tools)</p>
  
  <p>Have you done this before and how?</p>