[Opensource] SimpleDateFormat
Sarit.Seal at ITCINFOTECH.COM
Sarit.Seal at ITCINFOTECH.COM
Wed Mar 12 00:14:21 PST 2003
java.lang.text has a class called SimpleDateFormat you can use that class
to format the date.
I have used this class to do the required formatting.
public int getDaysThisYear()
{
Calendar calCurrent = Calendar.getInstance();
calCurrent.set( Calendar.DATE, 01);
calCurrent.set( Calendar.MONTH, Calendar.JANUARY);
calCurrent.add( Calendar.YEAR, 1);
calCurrent.add( Calendar.DATE, -1);
return calCurrent.get(Calendar.DAY_OF_YEAR);
}
public int getDaysThisMonth()
{
Calendar calCurrent = Calendar.getInstance();
calCurrent.set( Calendar.DATE, 1);
calCurrent.add( Calendar.MONTH, 1);
calCurrent.add( Calendar.DATE, -1);
return calCurrent.get(Calendar.DATE);
}
public String ConvertDatetoStringinFormat( java.util.Date dtInDate,
String sinFormat )
{
SimpleDateFormat sdfFormatter = new SimpleDateFormat(
sinFormat, Locale.US );
java.util.Date dtcurrDateTime = dtInDate;
String sDateString = sdfFormatter.format( dtInDate
).toUpperCase();
return sDateString;
}
public String ConvertDatetoString( java.util.Date dtInDate )
{
SimpleDateFormat sdfFormatter = new SimpleDateFormat(
LopsConstants.sDateTimeFormatJava, Locale.US );
java.util.Date dtcurrDateTime = dtInDate;
String sDateString = sdfFormatter.format(dtInDate).toUpperCase
();
return sDateString;
}
public String convertStringDatetoFormat( String sInDate,
String sDateTimeFormat,
String sDateTimeFormatNew )
{
SimpleDateFormat sdfFormatter = new
SimpleDateFormat(sDateTimeFormat, Locale.US);
SimpleDateFormat sdfFormatterNew = new SimpleDateFormat(
sDateTimeFormatNew, Locale.US );
Calendar calCurrent = Calendar.getInstance();
ParsePosition ppParse = new ParsePosition(0);
java.util.Date dtDate = sdfFormatter.parse(sInDate, ppParse);
calCurrent.setTime( dtDate );
return sdfFormatterNew.format(calCurrent.getTime()).toUpperCase
();
}
public String getSystemDate()
{
SimpleDateFormat sdfFormatter = new SimpleDateFormat
(LopsConstants.sDateTimeFormatJava, Locale.US);
java.util.Date dtcurrDateTime = new java.util.Date();
String sDateString =
sdfFormatter.format(dtcurrDateTime).toUpperCase();
return sDateString;
}
public String getSystemDate( String sDateTimeFormat )
{
SimpleDateFormat sdfFormatter = new SimpleDateFormat(
sDateTimeFormat, Locale.US );
java.util.Date dtcurrDateTime = new java.util.Date();
String sDateString =
sdfFormatter.format(dtcurrDateTime).toUpperCase();
return sDateString;
}
public String[] getDayNamesShrt()
{
String sDayNames[] = new String[7];
SimpleDateFormat sdfFormatter = new
SimpleDateFormat(LopsConstants.sDayNameShrtJava, Locale.US);
Calendar calCurrent = Calendar.getInstance();
// add 1 day as the starting day number of the week is 0
calCurrent.add(Calendar.DATE,
(calCurrent.get(Calendar.DAY_OF_WEEK) * (-1) )+
LopsConstants.iStartDayOfWeek);
for( int iDayNo = 0; iDayNo < 7; iDayNo ++)
{
sDayNames[iDayNo] =
sdfFormatter.format(calCurrent.getTime()).toUpperCase();
calCurrent.add(Calendar.DATE, 1);
}
return sDayNames;
}
public String[] getDayNamesLong()
{
String sDayNames[] = new String[7];
SimpleDateFormat sdfFormatter = new
SimpleDateFormat(LopsConstants.sDayNameLongJava, Locale.US);
Calendar calCurrent = Calendar.getInstance();
// add 1 day as the starting day number of the week is 0
calCurrent.add(Calendar.DATE,
(calCurrent.get(Calendar.DAY_OF_WEEK) * (-1) )+
LopsConstants.iStartDayOfWeek);
for( int iDayNo = 0; iDayNo < 7; iDayNo ++)
{
sDayNames[iDayNo] =
sdfFormatter.format(calCurrent.getTime()).toUpperCase();
calCurrent.add(Calendar.DATE, 1);
}
return sDayNames;
}
// Month Number starts from 0 - January to 11 December
public String[] getMnthNamesShrt()
{
String sMnthNames[] = new String[12];
SimpleDateFormat sdfFormatter = new
SimpleDateFormat(LopsConstants.sMnthNameShrtJava, Locale.US);
Calendar calCurrent = Calendar.getInstance();
// add 1 day as the starting day number of the week is 0
calCurrent.add(Calendar.MONTH, (calCurrent.get(Calendar.MONTH)
* (-1) ));
for( int iMnthNo = 0; iMnthNo < 12; iMnthNo ++)
{
sMnthNames[iMnthNo] =
sdfFormatter.format(calCurrent.getTime()).toUpperCase();
calCurrent.add(Calendar.MONTH, 1);
}
return sMnthNames;
}
public String[] getMnthNamesLong()
{
String sMnthNames[] = new String[12];
SimpleDateFormat sdfFormatter = new
SimpleDateFormat(LopsConstants.sMnthNameLongJava, Locale.US);
Calendar calCurrent = Calendar.getInstance();
// add 1 day as the starting day number of the week is 0
calCurrent.add(Calendar.MONTH, (calCurrent.get(Calendar.MONTH)
* (-1) ));
for( int iMnthNo = 0; iMnthNo < 12; iMnthNo ++)
{
sMnthNames[iMnthNo] =
sdfFormatter.format(calCurrent.getTime()).toUpperCase();
calCurrent.add(Calendar.MONTH, 1);
}
return sMnthNames;
}
public String getFirstDateOfMnth( String sInDate, String
sDateTimeFormat )
{
SimpleDateFormat sdfFormatter = new
SimpleDateFormat(sDateTimeFormat, Locale.US);
Calendar calCurrent = Calendar.getInstance();
ParsePosition ppParse = new ParsePosition(0);
java.util.Date dtDate = sdfFormatter.parse(sInDate, ppParse);
calCurrent.setTime( dtDate );
calCurrent.set(Calendar.DATE, 1);
return ConvertDatetoString( calCurrent.getTime() );
}
public String getLastDateOfMnth( String sInDate, String
sDateTimeFormat )
{
SimpleDateFormat sdfFormatter = new
SimpleDateFormat(sDateTimeFormat, Locale.US);
Calendar calCurrent = Calendar.getInstance();
ParsePosition ppParse = new ParsePosition(0);
java.util.Date dtDate = sdfFormatter.parse(sInDate, ppParse);
calCurrent.setTime( dtDate );
calCurrent.set( Calendar.DATE, 1);
calCurrent.add( Calendar.MONTH, 1);
calCurrent.add( Calendar.DATE, -1);
return ConvertDatetoString( calCurrent.getTime() );
}
public int getDayNumb( String sInDate, String sDateTimeFormat )
{
SimpleDateFormat sdfFormatter = new
SimpleDateFormat(sDateTimeFormat, Locale.US);
Calendar calCurrent = Calendar.getInstance();
ParsePosition ppParse = new ParsePosition(0);
java.util.Date dtDate = sdfFormatter.parse(sInDate, ppParse);
calCurrent.setTime( dtDate );
return calCurrent.get(Calendar.DAY_OF_WEEK);
}
public int getDayofMonth( String sInDate, String sDateTimeFormat )
{
SimpleDateFormat sdfFormatter = new
SimpleDateFormat(sDateTimeFormat, Locale.US);
Calendar calCurrent = Calendar.getInstance();
ParsePosition ppParse = new ParsePosition(0);
java.util.Date dtDate = sdfFormatter.parse(sInDate, ppParse);
calCurrent.setTime( dtDate );
return calCurrent.get(Calendar.DAY_OF_MONTH);
}
public int getMonth( String sInDate, String sDateTimeFormat )
{
SimpleDateFormat sdfFormatter = new
SimpleDateFormat(sDateTimeFormat, Locale.US);
Calendar calCurrent = Calendar.getInstance();
ParsePosition ppParse = new ParsePosition(0);
java.util.Date dtDate = sdfFormatter.parse(sInDate, ppParse);
calCurrent.setTime( dtDate );
return calCurrent.get(Calendar.MONTH);
}
public String addDay( String sInDate, String sDateTimeFormat, int
iInDays )
{
SimpleDateFormat sdfFormatter = new
SimpleDateFormat(sDateTimeFormat, Locale.US);
Calendar calCurrent = Calendar.getInstance();
ParsePosition ppParse = new ParsePosition(0);
java.util.Date dtDate = sdfFormatter.parse(sInDate, ppParse);
calCurrent.setTime( dtDate );
calCurrent.add(Calendar.DATE, iInDays);
return ConvertDatetoString( calCurrent.getTime() );
}
"Ben Switzer"
<ben at site85.com> To: <opensource at jcorporate.com>
Sent by: cc:
opensource-admin at jco Subject: RE: [Opensource] SimpleDateFormat
rporate.com
12/03/2003 08:04
Please respond to
opensource
Hmm... it does.
I'll give it a go. Thanks.
Ben
-----Original Message-----
From: opensource-admin at jcorporate.com
[mailto:opensource-admin at jcorporate.com] On Behalf Of Michael Rimov
Sent: Tuesday, March 11, 2003 6:20 PM
To: opensource at jcorporate.com
Subject: Re: [Opensource] SimpleDateFormat
At 02:37 PM 3/11/2003 -0500, you wrote:
>Good day all.
>
>I've been contemplating how best to format dates on an application wide
>basis. What I've done is as follows:
Ben,
Instead, why don't you create a wrapper object that wraps a DBObject to
get
what you want. By implementing a quick 'factory' method, you could end
up
with code like so:
WrapperObject wrap = WrapperObject.wrap(DBObject obj);
String formattedDate = wrap.getDateField(String fieldName);
Something along these lines would give you two advantages:
1 - Proper division of labor. The wrapper does what it's supposed to...
which is provide date formatting.
2 - We avoid yet more methods in DBObject, which I'm trying to split up
anyway.
3 - No patching the code while you wait for it to show up in CVS :)
Does this help?
-Mike
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