my question are :
You also need to write a BossEmployeeDemo class that contains a main() method. The main method for this class should:
1. create a single instance of the Boss class,
2. call the staffUp method on the Boss object
- ask user to input Employee name and ID
3. call the list method on the Boss object
4. Be sure that you also invoke appropriate methods in Employee class when you need to hire a staff.