title: Java: how to store data triple in a list?
body: <p>What's the best way in java to store data triple in a list ?</p>
  
  <pre><code>[a, b, c]
  [a, b, c]
  ... 
  </code></pre>
  
  <p>I usually use HashMap for couples of data key + value.. should I go for HashMap + Arraylist ? or ArrayList + ArrayList ?</p>
  
  <p>thanks </p>