//PolymorphismDemo.java

public class PolymorphismDemo
{
	public static void main(String[] args)
	{
		Person[] people = new Person[5];

		people[0] = new Undergraduate("Cotty, Manny", 4910, 1);
		people[1] = new Undergraduate("Kick, Anita", 9931, 2);
		people[2] = new Student("DeBanque, Robin", 8812);
		people[3] = new Undergraduate("Bugg, June", 9901, 4);
		people[4] = new Person("Bush, George");

		for (int i=0; i<people.length; i++)
		{
			people[i].writeOutput();
			System.out.println();
		}

        /*or ...
		for (Person p : people)
		{
			p.writeOutput();
			System.out.println();
		}
        */
    }
}