title: Quick and Simple Hash Code Combinations
body: <p>Can people recommend quick and simple ways to combine the hash codes of two objects.  I am not too worried about collisions since I have a Hash Table which will handle that efficiently I just want something that generates a code quickly as possible.</p>
  
  <p>Reading around SO and the web there seem to be a few main candidates:</p>
  
  <ol>
  <li>XORing</li>
  <li>XORing with Prime Multiplication</li>
  <li>Simple numeric operations like multiplication/division (with overflow checking or wrapping around)</li>
  <li>Building a String and then using the String classes Hash Code method</li>
  </ol>
  
  <p>What would people recommend and why?</p>