title: Populating a hashmap with predefined values (java)
body: <p>I've run into a problem I haven't had to deal with before. I'm writing a patch for a database in java that's basically converting data stored in certain rows. In order to do this I have a conversion table that tells me what values become what.</p>
  
  <p>Example, if I read in either "RC", "AC", "GH" -> Update the value to "T1". (These are just random examples, it's basically converting one string to another.)</p>
  
  <p>I need a good way of storing these conversions. I was thinking a hashmap:
  KEY,VALUE: (RC,T1) (AC,T1) (GH,T1) and so on and so on.</p>
  
  <p>Now, there's dozens and dozens of these. What's a good clean way of populating this hashmap when the patch initializes? </p>