How many Java out there that I should install on my computer?
<p>If I go to firefox add on I got <code>Java Development Toolkit 7.0.110</code></p>

<p>Then I got</p>

<p><code>Java (TM platform)</code> that is disabled due to security and I don't know how to install</p>

<p>Then I've heard about <code>Java JRE</code>.</p>

<p>I thought I am installing Java. Which Java anyway?</p>
