// Test the Person class.

public class TestPerson1
{
    public static void main(String[ ] args)
    {
        // Declare Person objects.
        Person p, q;
        
        // Instantiate Person object.
        p = new Person("Alice", 'F', 23);

        System.out.println("Check values of instance variables.");
        System.out.println(p.name);
        System.out.println(p.gender);
        System.out.println(p.age);
        System.out.println( );

        System.out.println("Change values of instance variables.");
        p.name = "Alan";
        p.gender = 'M';
        p.age = 24;

        System.out.println("Verify new values of instance variables.");
        System.out.println(p.name);
        System.out.println(p.gender);
        System.out.println(p.age);
        System.out.println( );

        System.out.println("Test display and toString methods of p.");
        p.display( );
        System.out.println(p.toString( ));
        System.out.println(p);
        System.out.println( );
    }
}