title: How can I learn binary representation of integers in Java?
body: <p>I am familiar with binary representation of integers in memory - i.e. how to represent positive numbers, negative numbers, the leading bit is for the sign and so on. I have no idea what representation like <code>0x000f</code> means and how should I interpret it. Can someone give some nice tutorials or at least tell me what to google, since when I google "binary representation" I dont find any explanation of what this number <code>0x000f</code> means?</p>