title: how to iterate to a specific element location in an array
body: <p>I have a line of DNA(genetics) text. A like is 3 BILLION elements wide if inserted into an array. I have another file with the specific location numbers of the items i want. I would like to go straight to that elementLocation and get the value in there. What is the most efficient way to do this? </p>
  
  <p>In other words, tellling java to "go to location 2234834 and get me the item in there.", but in an iterative manner...I have about 1 Milllion locations to go through</p>