/**	A Customer who comes to purchase ticket(s) in a simple waiting-line
	simulation. Each customer has a unique number and an arrival time. */
public class Customer
{
	/**	Number of the customer for tracing purposes.
		Analysis : Time = O(1) */
	protected int number;

	/**	The arrival time of the customer.
		Analysis: Time = O(1) */
	protected int arrivalTime;

	/**	Create a customer with the number n and arrival time t.
		Analysis: Time = O(1) */
	public Customer(int n, int t)
	{
		number = n;
		arrivalTime = t;
	}
}