title: How to convert contents of String ArrayList to char ArrayList
body: <p>I currently have a String ArrayList with the contents [a, b, c, d, e...] and so forth. However, I need to have a character based arraylist (ArrayList name). How would I go upon looping through my String arraylist and converting its elements to char, to append to the char arraylist?</p>
  
  <p>The same goes for converting a string arraylist full of numbers [1,2,3,4...] to an integer arraylist. How would I go upon looping through, converting the type, and adding it to the new arraylist?</p>