How do i convert a Date object into a TimeStamp object

[Rasmeet Devji]

Hi!
I got to store the current date and time in a Timestamp variable, i could retrieve the current date and time using
Calendar cal = Calendar.getInstance(TimeZone.getDefault());
cal.getTime();
but the method of getTime() returns a date object where as i need a Timestamp object, now how do i convert a date object into a Timestamp object??
Please try and reply on this one!
Regards!

[Michael Hildner]

Maybe something like:

class Test
{
public static void main(String[] args)
{
java.util.Date date = new java.util.Date(); // Right now
java.sql.Timestamp timestamp = new java.sql.Timestamp(date.getTime());
System.out.println("date: " + date);
System.out.println("timestamp: " + timestamp);
}
}

[Keith Cochran]

cal.getTime() returns a Date object, so just call getTime() from
the date object to get a long representing the millisecond time.
Then, pass this to the constructor of the Timestamp:
import java.util.Date;
import java.util.Calendar;
import java.sql.Timestamp;
import java.util.TimeZone;
public class DateTest {
public static void main(String [] s) {
Calendar cal = Calendar.getInstance(TimeZone.getDefault());
Timestamp tstamp = new Timestamp(cal.getTime().getTime());
System.out.println(tstamp.toString() + "\n");
}
}
Good Luck,
Keith

[Anthony Smith]

Can you go from a timestamp to a date? How do you do that?

[Tim Morrow]

You can create a date from a timestamp in the same manner:

<font size="2">
java.sql.Timestamp timestamp = new java.sql.Timestamp();
java.util.Date date = new java.util.Date(timestamp.getTime());
</font>

A java.sql.Timestamp IS a java.util.Date (it extends it) but it is quite dangerous to use them interchangably since equality is not symmetric.
You can do this:

<font size="2">
java.sql.Timestamp timestamp = new java.sql.Timestamp();
java.util.Date date = timestamp;
</font>

But the following fails:

<font size="2">  
java.util.Date date1 = new java.util.Date();
java.util.Date date2 = new java.sql.Timestamp(date1.getTime());
date1.equals(date2); // This is true
date2.equals(date1); // This is false because date1 is not a Timestamp
</font>

T
[ September 24, 2003: Message edited by: Tim Morrow ]