Java in the date and time to deal with the example

Abstract: java in the date and time to deal with the example

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Import java.util .*;
Import java.text.SimpleDateFormat;
Import java.sql.Date;
Import java.sql.Time;
Import java.sql.Timestamp;

Public class TestDateTime
(
Public static void main (String argv [])
(
Long nCurrentTime = System.currentTimeMillis ();
Java.util.Date utilDate = new java.util.Date (nCurrentTime);

/ / The following is the database for the operation of the date and time of
Java.sql.Date sqlDate = new java.sql.Date (utilDate.getTime ());

/ / Java.util.Date conversion and java.sql.Date
Java.sql.Time sqlTime = new java.sql.Time (utilDate.getTime ());
Java.sql.Timestamp sqlTimestamp = new java.sql.Timestamp (nCurrentTime);

/ / Calendar for the acquisition of a specified period of time (Field)
Calendar calendar = Calendar.getInstance ();
Calendar.setTimeInMillis (nCurrentTime);

Int year = calendar.get (Calendar.YEAR);
Int month = calendar.get (Calendar.MONTH) + 1; / / NOTE: the return of the month is based on 0!
Int day = calendar.get (Calendar.DAY_OF_MONTH);
Int hour = calendar.get (Calendar.HOUR_OF_DAY);
Int minute = calendar.get (Calendar.MINUTE);
Int second = calendar.get (Calendar.SECOND);

System.out.println ( "Current date is:" + year + "" + month + "," + + day ",");
System.out.println ( "Current time is:" + hour + "" + + minute "-" + second + "seconds");

/ / SimpleDateFormat format for the date and time
SimpleDateFormat df = new SimpleDateFormat ( "yyyy-MM-dd HH: mm: ss");
String szDatetime1 = df.format (utilDate);
System.out.println ( "Current datetime is:" + szDatetime1);

/ / Value of the following two dates of the time difference between
Java.util.Date date2 = new java.util.Date (nCurrentTime - 24600 * 1000);

UtilDate.getTime long nMilliSeconds = () - date2.getTime ();
Long nSeconds = nMilliSeconds / 1000; / / ms converted to the second
Double nDays nSeconds = / (24d * 60d * 60d); / / conversion of the second Narita

String szDatetime2 = df.format (date2);
System.out.println ( "Time between" szDatetime1 + + "and" + + szDatetime2 "is" nSeconds + + "seconds (" + + nDays "days)");
)
)

Running Results:

C: \ java> java TestDateTime
Current date is: January 2, 2005
Current time is: 15:55:45
Current datetime is: 2005-01-02 15:55:45
Time between 2005-01-02 15:55:45 and 2005-01-02 09:05:45 is 24,600 seconds (0.2847222222222222 days)

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