• Declare a new ArrayList of type creatures:
  ArrayList<Creature> creatureList = new ArrayList<Creature>();

• Add an item to an ArrayList by saying creatureList.add(new Human(creatureName));

• Remove an item from an ArrayList

Geeks for Geeks has a more complete article about how to use the LinkedList Collection

Create an object

LinkedList<String> object = new LinkedList<String>();

Member Methods

• object.add("A");

• object.remove("A");

• object.removeFirst();

• object.removeLast();

• boolean status = object.contains("E");

• See the example code on the left and the Geeks for Geeks article for more member methods.

• Create a stack by saying Stack<Integer> urNameOfStack= new Stack<Integer>();

• Last-in, First-out. LIFO.

Methods

• boolean empty(); //Checks if the list is empty.

• E peek(); //Checks the top of the stack, but doesn't remove anything.

• E pop(); //Removes and returns the item at the top of the stack.

• E push(); //Places an item at the top fo the stack.

• int search(Object o); //Returns the index of where that object is on the stack.