import java.util.ArrayList;
import java.util.Iterator;




| A very simple database of people in a university. This class simply stores
| persons and, at request, lists them on standard output.
|
| Written as a first demo program for BlueJ.
|
| @author  Michael Kölling
| @version 1.1, March 2002
|
public class Database
{     
private ArrayList<Person> persons;

    


| Create a new, empty person database.
|
public Database() 
    {
        persons = new ArrayList<Person>();
    }

    


| Add a person to the database.
|
public void addPerson(Person p) 
    {
        persons.add(p);
    }

    


| List all the persons currently in the database on standard out.
|
public void listAll() 
    {
        for (Iterator i = persons.iterator(); i.hasNext();) {
            System.out.println(i.next());
        }
    }
}