How to get the system date and time?

[wang]

Hi all,
I want to get the system date and time with java on
windows platform. I've tried with the class GregorianCalendar,
but without success. Can you explain me how to do it?
It would be very helpful if you can explain with a simple
example. Thanks in advance.
k.w.wang

 

[Roedy Green]

I want to get the system date and time with java on
windows platform. I've tried with the class GregorianCalendar,
but without success. Can you explain me how to do it?
It would be very helpful if you can explain with a simple
example. Thanks in advance.

see http://mindprod.com/jgloss/time.html
http://mindprod.com/jgloss/calendar.html

 

[bbmyth]

you can do it in two ways.
one:use the Date class.
//-------------------------------------------------
Date now = new Date();
int date = now.getDate();
int hour = now.getHours();
int second = now.getSecond();
//-------------------------------------------------
two:use the Calendar calss
//-------------------------------------------------
Date now = Calendar.getInstance().getTime();
int date = now.getDate();
int hour = now.getHours();
int second = now.getSecond();
//-------------------------------------------------
that's all.

 

[Roland]

Hi all,
I want to get the system date and time with java on
windows platform. I've tried with the class GregorianCalendar,
but without success. Can you explain me how to do it?
It would be very helpful if you can explain with a simple
example. Thanks in advance.
k.w.wang

import java.util.Date;
....
Date now = new Date();
System.out.println(now);


If you need to output in a specific format, you can use SimpleDateFormat
(or its superclass DateFormat):

import java.text.SimpleDateFormat;
import java.util.Date
....
Date now = new Date();
SimpleDateFormat formatter =
new SimpleDateFormat("dd-MM-yyyy hh:mm:ss");
System.out.println(formatter.format(now));
--
Regards,

Roland de Ruiter
` ___ ___
`/__/ w_/ /__/
/ \ /_/ / \

 

[ozgwei]

Instead of:
SimpleDateFormat formatter = new SimpleDateFormat("dd-MM-yyyy
hh:mm:ss");

try:
DateFormat formatter = DateFormat.getDateInstance();
which gets the date formatter with the default formatting style for the
default locale.

or
DateFormat formatter = DateFormat.getDateInstance(DateFormat.MEDIUM);
which gets the date formatter with the MEDIUM style of the default
locale.
There are totally four styles: DateFormat.SHORT, DateFormat.MEDIUM,
DateFormat.LONG, DateFormat.FULL.
DateFormat.DEFAULT defaults to DateFormat.MEDIUM.

or
DateFormat formatter = DateFormat.getDateInstance(DateFormat.MEDIUM,
aLocale);
which gets the date formatter with the MEDIUM style of the given
locale.

or
DateFormat formatter = DateFormat.getTimeInstance();

or
DateFormat formatter = DateFormat.getTimeInstance(DateFormat.MEDIUM);

or
DateFormat formatter = DateFormat.getTimeInstance(DateFormat.MEDIUM,
aLocale);

or
DateFormat formatter = DateFormat.getDateTimeInstance();

or
DateFormat formatter =
DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.MEDIUM);
The first parameter indicates the style of the date while the last
parameter indicates the style of the time.

or
DateFormat formatter =
DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.MEDIUM,
aLocale);

Choose the one that suits your needs the best.

 

[wang]

With your help I've solved the problem. Many thanks!

k.w.wang