> How do I scan different values into an ArrayList
> array?
An ArrayList is not an array. It's an implementation of the java.util.List interface:
http://java.sun.com/j2se/1.5.0/docs/api/java/util/List.html
> I want the user to be able to input an
> integer, double, or string and then have it be stored
> in 1 of 3 arraylists. How do I accomplish this?
Have a look at the API docs of the Scanner class (including example code):
http://java.sun.com/j2se/1.5.0/docs/api/java/util/Scanner.html
Good luck.