1	// TimeOfDay.java
     2	//
     3	// Ethan Bolker
     4	// May, 2004 for cs110 final project
     5	
     6	public class TimeOfDay
     7	{
     8	    private String days;
     9	    private String hour;
    10	
    11	    private final static TimeOfDay[] allTimes = 
    12	    { 
    13		new TimeOfDay("MWF", "9", 1),
    14		new TimeOfDay("MWF", "10", 1),
    15		new TimeOfDay("MWF", "11", 1),
    16		new TimeOfDay("MWF", "12", 1),
    17		new TimeOfDay("MWF", "1", 1),
    18		new TimeOfDay("MWF", "2", 1),
    19		new TimeOfDay("MWF", "3", 1),
    20		new TimeOfDay("MWF", "4", 1),
    21		new TimeOfDay("MWF", "5", 1),
    22		new TimeOfDay("MWF", "6", 1),
    23		new TimeOfDay("MWF", "7", 1),
    24		new TimeOfDay("MWF", "8", 1),
    25		new TimeOfDay("TTh", "9", 1),
    26		new TimeOfDay("TTh", "10", 1),
    27		new TimeOfDay("TTh", "11", 1),
    28		new TimeOfDay("TTh", "12", 1),
    29		new TimeOfDay("TTh", "1", 1),
    30		new TimeOfDay("TTh", "2", 1),
    31		new TimeOfDay("TTh", "3", 1),
    32		new TimeOfDay("TTh", "4", 1),
    33		new TimeOfDay("TTh", "5", 1),
    34		new TimeOfDay("TTh", "6", 1),
    35		new TimeOfDay("TTh", "7", 1),
    36		new TimeOfDay("TTh", "8", 1)
    37	    };
    38	
    39	    // private constructor used to fill array of legal times
    40	    private TimeOfDay( String days, String hour, int dummy )
    41	    {
    42		this.days = days.trim(); 
    43		this.hour = hour.trim();
    44	    }
    45	    
    46	    /**
    47	     * Create a TimeOfDay instance.
    48	     *
    49	     * @throw WISEException if format unacceptable.
    50	     */
    51	    public TimeOfDay( String days, String hour )
    52		throws WISEException
    53	    {
    54		this.days = days.trim(); // just in case there are blanks
    55		this.hour = hour.trim();
    56	 	if (! this.isLegal() ) {
    57		    throw new WISEException
    58			("Illegal time of day: " + days + " " + hour);
    59		}
    60	    }
    61	
    62	    public boolean equals( Object obj )
    63	    {
    64		if (! (obj instanceof TimeOfDay) ) {
    65		    return false;
    66		}
    67		TimeOfDay otherTime = (TimeOfDay)obj;
    68		return ((this.days).equalsIgnoreCase(otherTime.days) &&
    69			(this.hour).equals(otherTime.hour));
    70	    }
    71	
    72	    public String toString()
    73	    {
    74		return days + " " + hour;
    75	    }
    76	
    77	    /**
    78	     * Is a TimeOfDay one of the legal times?
    79	     */
    80	    public boolean isLegal( )
    81	    {
    82		for( int i = 0; i < allTimes.length; i++ ) {
    83		    if (allTimes[i].equals(this)) {
    84			return true;
    85		    }
    86		}
    87		return false;
    88	    }
    89	
    90	    public static TimeOfDay[] getAllTimes() 
    91	    {
    92		return allTimes;
    93	    }
    94	
    95	    public static void main( String[] args ) 
    96	    {
    97		System.out.println("unit test for TimeOfDay");
    98		try {
    99		    TimeOfDay tod1 = new TimeOfDay("MWF", "  10  ");
   100		    TimeOfDay tod2 = new TimeOfDay("mwf", "10");
   101		    TimeOfDay tod3 = new TimeOfDay("TTh", "11");
   102		    System.out.println("Should see MWF 10: " + tod1);
   103		    System.out.println("Should see true:   " + 
   104				       (tod1.equals(tod2)));
   105		    System.out.println("Should see false:  " + 
   106				       (tod1.equals("MWF 10")));
   107		    System.out.println("Should see false:  " + 
   108				       (tod1.equals(tod3)));
   109		    tod3 = new TimeOfDay("MW", "10");
   110		}
   111		catch (WISEException e) {
   112		    System.out.println(e);
   113		}
   114	    }
   115	}