https://www.codecademy.com/courses/learn-java/lessons/learn-java-arraylists
Creating an ArrayList.
Adding a new ArrayList item using add().
Accessing the size of an ArrayList using size().
Finding an item by index using get().
Changing the value of an ArrayList item using set().
Removing an item with a specific value using remove().
Retrieving the index of an item with a specific value using indexOf().
https://www.codecademy.com/courses/learn-java/lessons/learn-java-arraylists Creating an ArrayList. Adding a new ArrayList item using add(). Accessing the size of an ArrayList using size(). Finding an item by index using get(). Changing the value of an ArrayList item using set(). Removing an item with a specific value using remove(). Retrieving the index of an item with a specific value using indexOf().