Class CourseSchedule

java.lang.Object

CourseSchedule

public class CourseSchedule
extends java.lang.Object

An immutable encapsulation of the times at which the courses at an educational institution can be scheduled. Any such encapsulation must involve the first time a course can be scheduled, the length of the meeting, and the gap between the end of one and the start of the next. This encapsulation also uses the number of "periods" per day (though it could, instead, use the last time a course can be schedueld). Times use military format (i.e., valid times are in the range 00:00 - 23:59). Durations are expressed in minutes.

Constructor Summary

Constructors

Constructor and Description
CourseSchedule(int firstHH, int firstMM, int length, int gap, int numberPerDay) Construct a CourseSchedule.

Method Summary

Modifier and Type	Method and Description
int	getFirstHour() Get the hour of the first scheduled course.
int	getFirstMinute() Get the minute of the first scheduled course.
int	getGap() Get the number of minutes between the end of one course and the start of the next.
int	getLength() Get the length of a course (in minutes).
int	getNumberPerDay() Get the number of courses per day.
static boolean	invalidTime(int hh, int mm) Check the validity of a time (in miilitary format).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CourseSchedule

public CourseSchedule(int firstHH,
                      int firstMM,
                      int length,
                      int gap,
                      int numberPerDay)

Construct a CourseSchedule.

Parameters:

firstHH - The hour of the first coure of the day (military format)

firstMM - The minute of the first course of the day

length - The length of a course in minutes

gap - The amount of time between courses in minutes

numberPerDay - The number of coure periods per day

Throws:

java.lang.IllegalArgumentException - if the parameters are invalid

Method Detail

getFirstHour

public int getFirstHour()

Get the hour of the first scheduled course.

Returns:

The hour in military format (i.e., in [0,23])

getFirstMinute

public int getFirstMinute()

Get the minute of the first scheduled course.

Returns:

The minute

getGap

public int getGap()

Get the number of minutes between the end of one course and the start of the next.

Returns:

The gap (in minutes)

getLength

public int getLength()

Get the length of a course (in minutes).

Returns:

The length

getNumberPerDay

public int getNumberPerDay()

Get the number of courses per day.

Returns:

The number

invalidTime

public static boolean invalidTime(int hh,
                                  int mm)

Check the validity of a time (in miilitary format).

Parameters:

hh - The hours (in military format)

mm - The minutes

Returns:

true if the time is invalid; false otherwise