title: Finding the lowest free position of an array
body: <p>I'm having a problem with an array, I need to find the lowest free position of an array to insert information into it. How would I go about doing this?</p>
  
  <p>For example I have array <code>string[] array = String[10]</code> where by some of the positions of the array are already filled, I need to choose a spot in the array and then search going back to towards position 0 which spots are free and then return that value.</p>
  
  <p>This is probably quite simple but I'm completely stumped, thanks for the help.</p>