1. Array List
Pepper

2. Why not just primitive arrays
Inserting is awkward
Everything must shift
Removal is awkward
Common tasks
Print an array
Contains
Index of
Last Index Of
Get size

3. Syntax Generic Class Class definition takes in a type parameter
ArrayList<E>
E is the type
ArrayList<String> is "array list of type string"
ArrayList<String> var = new ArrayList<String>()
ArrayList<Player> var = new ArrayList<Player>()
Think of the classname as ArrayList<Player>
Also legal: ArrayList<String> var = new ArrayList<>()
Call methods like any object:
var.add("A value");

4. Add

5. Remove

6. Contains

7. Methods
Write a method to add an element with "~" between every existing element

8. Looping issues
The indexes and size keep changing

9. Insert ~ before each element
Problem:

10. Insert ~ before each element
Good

11. Removing every other
Problem

12. Removing every other
Good

13. Searching
Write a replace method

14. Replace

15. Wrapper No primitives Wrap up into an Integer class
AutoBoxing sometimes
Equals problem

16. Summary Create an ArrayList: Use arraylist methods Wrap an integer
ArrayList<String> v = new ArrayList<String>();
Use arraylist methods
Understand size and indexes change with methods
Wrap an integer