title: Array element addition
body: <p>This may be a completely trivial question but i cannot find any documentation on this...
  I want to find the sum of two individual array elements for example....</p>
  
  <pre><code>array3[x] = array1[y] + array2[z]
  </code></pre>
  
  <p>when I do something like this, the answer is y and z combined. how would one find the sum of numbers y &amp; z and not the conjoined string.
  Sorry if this is exceedingly trivial but i could not find a post asking this myself.</p>
  
  <p>in summary if I have an array eg: a[1,2,5,9] &amp; b[8,6,7,2] &amp; c[]</p>
  
  <pre><code>c[0] = a[0] + b[0]
  System.out.println(c[0]);
   "9"
  </code></pre>