//An instance of this class represents a 5-day Time-Card
public class TimeCard
{
   //A class to represent days of the work week
   public enum WorkDay
   {
      MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY;
      
      public String brief()
      {
         return this == THURSDAY ? "R" : this.toString().substring(0,1);
      }
   }   
   
   //Instance Variable: Hours worked on each work day 
   private double[] hours = new double[WorkDay.values().length];
   
   //Constructor: Creates an "unmarked" TimeCard
   public TimeCard()
   {
      this.reset();
   }
   
   //Accessor: returns the hours from this TimeCard
   public double[] getHours()
   {
      double[] hours = new double[this.hours.length];
      for (int day = 0; day < this.hours.length; day++)
         hours[day] = this.hours[day];
      return hours;
   }
   
   //Mutator: Update this TimeCard entry for one work day      
   public void addHours(WorkDay day, double hours)
   {
      this.hours[day.ordinal()] += hours;
   }
   
   //Mutator: reset all hours of this TimeCard to 0.0
   public void reset()
   {
      for (int day = 0; day < this.hours.length; day++)
         this.hours[day] = 0.0;
   }
   
   //Override: Returns an image of the state of this TimeCard
   public String toString()
   {
      String image = "";
      for (WorkDay day : WorkDay.values())
         image += day.brief() + ":" + this.hours[day.ordinal()] + "  ";
      return image.trim();
      //return super.toString();
   }
   
   //Override
   public boolean equals(Object other)
   {
      if (other == null || this.getClass() != other.getClass())
         return false;
         
      TimeCard that = (TimeCard)other;
      for (int day = 0; day < this.hours.length; day++)
         if (this.hours[day] != that.hours[day])
            return false;
      return true;
   }
}