prog.utils
Class MyDate

java.lang.Object
  |
  +--prog.utils.MyDate

All Implemented Interfaces:

java.lang.Comparable

public class MyDate

extends java.lang.Object

implements java.lang.Comparable

This wrapper class for Calendar provides various date-related utilities.

Field Summary

java.util.Calendar	calendar The Calendar wrapped in this instance of MyDate.
java.lang.String	date The date in "month day, year" form, such as Oct 23, 1982.
java.lang.String	day The 0-padded day number, such as 03, 20, and 07.
int	dayInt The numerical day of the month, such as 3.
java.lang.String	dayOfWeek The day of the week, such as Wed and Fri.
java.lang.String	month The month, such as Oct and Mar.
int	monthInt The numerical month of the year, such as 2.
java.lang.String	monthNum The 0-padded month number, such as 03, 10, and 11.
java.lang.String	priorYear The year before the year of this MyDate, such as 1985.
java.lang.String	time The military time, such as 15:34:23.
java.lang.String	timestamp The date in timestamp form, such as Sat Oct 20 17:32:52 PDT 2001.
java.lang.String	year The year, such as 1986.
int	yearInt The four-digit year number, such as 1987.
java.lang.String	yymmdd The date in yymmdd form, such as 010205 for 2001 Feb 5.
java.lang.String	yyyymmdd The date in yyyymmdd form, such as 20010205 for 2001 Feb 5.
java.lang.String	zone The timezone, such as PST.

Constructor Summary

MyDate()
Initializes the Calendar of this object to today.

MyDate(java.util.Calendar cal)
Initializes the Calendar of this object to cal.

Method Summary

int	compareTo(java.lang.Object ob2) Returns -1 if this MyDate is earlier in time than ob2, 0 if the same and 1 if later.
static MyDate	daysAgo(int days) Returns a MyDate object that is 'days' number of days before today.
static void	main(java.lang.String[] args)
java.lang.String	monthsAgo(int ago) Returns the 0-padded month number of the month that is 'ago' months before the month of this MyDate.
java.lang.String	toString() Prints the values of the variables of the MyDate instance.

Methods inherited from class java.lang.Object

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

Field Detail

calendar

public java.util.Calendar calendar

The Calendar wrapped in this instance of MyDate.

timestamp

public java.lang.String timestamp

The date in timestamp form, such as Sat Oct 20 17:32:52 PDT 2001.

dayOfWeek

public java.lang.String dayOfWeek

The day of the week, such as Wed and Fri.

day

public java.lang.String day

The 0-padded day number, such as 03, 20, and 07.

month

public java.lang.String month

The month, such as Oct and Mar.

time

public java.lang.String time

The military time, such as 15:34:23.

zone

public java.lang.String zone

The timezone, such as PST.

year

public java.lang.String year

The year, such as 1986.

date

public java.lang.String date

The date in "month day, year" form, such as Oct 23, 1982.

monthNum

public java.lang.String monthNum

The 0-padded month number, such as 03, 10, and 11.

priorYear

public java.lang.String priorYear

The year before the year of this MyDate, such as 1985.

yymmdd

public java.lang.String yymmdd

The date in yymmdd form, such as 010205 for 2001 Feb 5.

yyyymmdd

public java.lang.String yyyymmdd

The date in yyyymmdd form, such as 20010205 for 2001 Feb 5.

dayInt

public int dayInt

The numerical day of the month, such as 3.

monthInt

public int monthInt

The numerical month of the year, such as 2.

yearInt

public int yearInt

The four-digit year number, such as 1987.

Constructor Detail

MyDate

public MyDate()

Initializes the Calendar of this object to today.

MyDate

public MyDate(java.util.Calendar cal)

Initializes the Calendar of this object to cal.

Method Detail

compareTo

public int compareTo(java.lang.Object ob2)

Returns -1 if this MyDate is earlier in time than ob2, 0 if the same and 1 if later.

Specified by:

compareTo in interface java.lang.Comparable

daysAgo

public static MyDate daysAgo(int days)

Returns a MyDate object that is 'days' number of days before today.

monthsAgo

public java.lang.String monthsAgo(int ago)

Returns the 0-padded month number of the month that is 'ago' months before the month of this MyDate. For example, if this MyDate's monthNum is 10, monthsAgo(3) is "07".

toString

public java.lang.String toString()

Prints the values of the variables of the MyDate instance. For example:

timestamp : Sat Oct 20 17:32:52 PDT 2001
dayOfWeek : Sat
day : 20
month : Oct
time : 17:32:52
zone : PDT
year : 2001
date : Oct 20, 2001
priorYear : 2000
dayInt : 20
monthInt : 10
yearInt : 2001
yymmdd : 011020
yyyymmdd : 20011020

Overrides:

toString in class java.lang.Object

main

public static void main(java.lang.String[] args)