horstmann.ch03_day1

Class Day

java.lang.Object

horstmann.ch03_day1.Day

public class Day
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
Day(int aYear, int aMonth, int aDate) Constructs a day with a given year, month, and day of the Julian/Gregorian calendar.

Method Summary

Modifier and Type	Method and Description
Day	addDays(int n) Returns a day that is a certain number of days away from this day
int	daysFrom(Day other) Returns the number of days between this day and another day
int	getDate() Returns the day of the month of this day
int	getMonth() Returns the month of this day
int	getYear() Returns the year of this day

Methods inherited from class java.lang.Object

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

Constructor Detail

Day

public Day(int aYear,
           int aMonth,
           int aDate)

Constructs a day with a given year, month, and day of the Julian/Gregorian calendar. The Julian calendar is used for all days before October 15, 1582

Parameters:

aYear - a year != 0

aMonth - a month between 1 and 12

aDate - a date between 1 and 31

Method Detail

getYear

public int getYear()

Returns the year of this day

Returns:

the year

getMonth

public int getMonth()

Returns the month of this day

Returns:

the month

getDate

public int getDate()

Returns the day of the month of this day

Returns:

the day of the month

addDays

public Day addDays(int n)

Returns a day that is a certain number of days away from this day

Parameters:

n - the number of days, can be negative

Returns:

a day that is n days away from this one

daysFrom

public int daysFrom(Day other)

Returns the number of days between this day and another day

Parameters:

other - the other day

Returns:

the number of days that this day is away from the other (>0 if this day comes later)