title: Greater than / less than between the elements of two arraylist
body: <p>Ok so I have two integer arraylist  and I want to compare each element that matches  the index of the other arraylist. I then want to loop through both arraylist and if one element is greater than the other I want to store that element in one of two new list.  if the elements are the same than return nothing or null.            </p>
  
  <p>The Arraylist </p>
  
  <pre><code>arr1 ={3,4,0};   arr2={7,2,1}; 
  </code></pre>
  
  <p>Result I want </p>
  
  <pre><code>arr1greater {4};  arr2greater {7,1}; 
  </code></pre>
  
  <p>how can i do this? </p>