Time Formatting Tool class

Package com.sec.util;

Import java.text.ParseException;
Import Java.text.SimpleDateFormat;
Import Java.util.Date;

public class Datetimeutil {
/**
* String type changed to date (hours, minutes, seconds)
*
*/
public static Date convertdate (String datestr) {
if (Stringutil.isnullorempty (DATESTR)) {
return null;
}
Date d = null;
SimpleDateFormat SDF = new SimpleDateFormat ("Yyyy-mm-dd HH:mm:ss");
try {
D = Sdf.parse (DATESTR);
} catch (ParseException e) {
E.printstacktrace ();
}
return D;
}

/**
* Change date to date type
* @param data
* @return
*/
public static String convertdate (date date) {
if (null==date) {
Return "";
}
SimpleDateFormat SDF = new SimpleDateFormat ("Yyyy-mm-dd HH:mm:ss");
return Sdf.format (date);
}

/**
*
* @param date
* @return
*/
public static String Convertdatenotime (date date) {
if (null==date) {
Return "";
}
SimpleDateFormat SDF = new SimpleDateFormat ("Yyyy-mm-dd");
return Sdf.format (date);
}
}

Time Formatting Tool class