Overview
Go back and have a look at the second Daleks warm up exercise from last week.
Create a new class Dalek3 which behaves the same as Dalek2 except that the sayings are held in an ArrayList rather than a standard array. Implement a method void addSaying(String s) which appends a new saying to the existing list of sayings.
An automated test has been created for this exercise: Dalek3Test.java.