title: Really confused with java pixel manipulation
body: <p>THIS part i'm confused with what these 3 hexadecimals are doing such as 00ff0000, and why they're bitshifted 16 or 8 places</p>
  
  <pre><code> // Getting pixel color by position x=100 and y=40 
      int clr=  image.getRGB(100,40); 
      int  red   = (clr &amp; 0x00ff0000) &gt;&gt; 16;
      int  green = (clr &amp; 0x0000ff00) &gt;&gt; 8;
      int  blue  =  clr &amp; 0x000000ff;
  </code></pre>