public class ClockedEmployee implements Measurable
{
	//Instance Variables
	String idNumber;
	private int hours;
	private double rate;

   public double getMeasure()
   {
      return this.grossPay();
   }
   	
	//Constructors
	public ClockedEmployee(int hours, double rate)
	{
		this.idNumber = nextIdNumber();
		this.hours = hours;
		this.rate = rate;
	}
	
	public ClockedEmployee(double rate)
	{
		this(0, rate);
	}
	
	//Accessors
	public String getIdNumber()
	{
		return this.idNumber;
	}
	
	public int getHours()
	{
		return this.hours;
	}
	
	public double getRate()
	{
		return this.rate;
	}
	
	//Method to calculate employee's gross pay amount
	public double grossPay()
	{
		return this.hours * this.rate +
		       (this.hours > 40 ? (this.hours - 40) * this.rate * 0.5 : 0.0);
	}
	
	//Override
	public String toString()
	{
		return "DayWorker " + this.idNumber + "  " + 
		       this.hours + " Hours @ $" + this.rate + "/hr";
	}
	
	//Helper Method to generate a new ID-number
	private static int lastNumber = 7000000;
	private String nextIdNumber()
	{
		lastNumber++;
		String id = "" + lastNumber;
		return id.substring(0, 3) + "-" +
		       id.substring(3, 5) + "-" +
				 id.substring(5);
	}	
}