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Chip 2005 February
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bluej
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people2
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Database.java
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2004-12-19
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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 Kolling
* @version 1.1, March 2002
*/
public class Database {
private ArrayList persons;
/**
* Create a new, empty person database.
*/
public Database()
{
persons = new ArrayList();
}
/**
* 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());
}
}
}