VietMX Staff asked 3 years ago
- Arrays are strongly typed, and work well as parameters. If you know the length of your collection and it is fixed, you should use an array.
- ArrayLists are not strongly typed, every Insertion or Retrial will need a cast to get back to your original type. If you need a method to take a list of a specific type, ArrayLists fall short because you could pass in an ArrayList containing any type. ArrayLists use a dynamically expanding array internally, so there is also a hit to expand the size of the internal array when it hits its capacity.
What you really want to use is a generic list like List. This has all the advantages of Array and ArrayLists. It is strongly typed and it supports a variable length of items.
