title: What would be a good data structure to store both Integer and array[String] values?
body: <p>I need a data structure to store a number of integer values associated with an array of strings of <strong><em>variable</em></strong> size. For example, this is what I have-</p>
  
  <pre><code>ADDRESS   INSTRUCTION
  64        ADD R1, R0, R0 
  68        BGTZ R2, #32
  .         .
  .         .
  .         .
  124       J #116
  </code></pre>
  
  <p>where I want to fetch an <strong>INSTRUCTION</strong> which I suppose should be stored as an array of strings(exclude the comma and '#') based on the <strong>ADDRESS</strong> value, more like a key-value pair. This is what I think should be a good idea to store it OR if you can suggest me a better approach of representing this in memory it would be great. (I am using Java to code.)</p>
  
  <p>A good data structure(<strong>WHICH</strong>?) with reasoning(<strong>WHY</strong>?) and a detailed explanation(<strong>HOW</strong>?) would be really nice. </p>