title: What are those numbers and what is their type?
body: <p>Ok I got a couple values here:</p>
  
  <pre><code>'F', 0xf, 070, 70L, 77e-1f, 7.7f, 7.77e1, 77.7
  </code></pre>
  
  <p>I know that <code>'F'</code> is a <code>char</code> and that <code>70L</code> has the type <code>long</code>. Also, I know that <code>0xf</code> is hex(right?) and that <code>070</code> is octal. But what are those other numbers? And why the hell is <code>77.7</code> <code>double</code> and not <code>float</code> as well?</p>