ARRAYS                                 |    ARRAYLISTS
  -------------------------------------------------------------------------------------------------
  Declaration:                             |
     String[] colors = new String[3];      |   ArrayList<String> colors = new ArrayList<>();
  -------------------------------------------------------------------------------------------------
  Assigning values:                        |   Adding values:
     colors[0] = "blue";                   |      colors.add("blue");
  -------------------------------------------------------------------------------------------------
  Removing items:                          |
     You cannot delete items from arrays   |   colors.remove("blue") or colors.remove(0)
  -------------------------------------------------------------------------------------------------
  Getting the number of items:             |
     colors.length;                        |   colors.size();
  -------------------------------------------------------------------------------------------------
  Looping through and printing the values: | Enhanced for loop (can be used for arrays):
     for(int i=0; i<colors.length; i++) {  |   for(String s : colors) {
          System.out.println(colors[i]);   |       System.out.println(s);
     }                                     |   }