title: private final static attribute vs private final attribute
body: <p>In Java, what's the difference between:</p>
  
  <pre><code>private final static int NUMBER = 10;
  </code></pre>
  
  <p>and</p>
  
  <pre><code>private final int NUMBER = 10;
  </code></pre>
  
  <p>Both are <code>private</code> and <code>final</code>, the difference is the <code>static</code> attribute.</p>
  
  <p>What's better? And why?</p>