Formatted output date and time

If you want to output the date and time format you want, it is necessary to use the SimpleDateFormat class, which is the only non-abstract subclass of the DateFormat class, which has a powerful function in displaying the date and time. For example, to output "Sunday 2004.06.06 at 06:53:01 pm CST", as long as an instance is explicitly constructed:
SimpleDateFormat formatter=new SimpleDateFormat ("E yyyy. Mm.dd ' at ' hh:mm:ss a zzz ');
where e represents the day of the week, YYYY, MM, DD denotes the year, month, and date; ' At ' means the string "at"; Hh:mm:ss represents time; a indicates that the A.M. or p.m;zzz represents the time zone;
The following is the format code in the SimpleDateFormat class
Symbolic meaning
G A.D.
Y years
M-month
D-Day
H a.m/p.m Hour (1-12)
H 24 hour clock (0-23)
M min
s S
S ms
E Week
D the first day of the year
F the first few weeks of the month
W The first few weeks of the year
W one months in the first few weeks
A a.m/p.m mark
K 24-hour clock (1-24)
The hour of the K a.m/p.m system (0-11)
Z Time zone
' Escape character
"Single quote import java.util.*;
Import java.text.*;
public class Dodate {public dodate () {
} public String fotmatDate1 (Date mydate) {
SimpleDateFormat formatter = new SimpleDateFormat ("yyyy years mm DD Day hh mm min ss sec");
String strdate = Formatter.format (mydate);
return strdate;
}
Public String FotmatDate2 (Date mydate) {
SimpleDateFormat formatter = new SimpleDateFormat ("yyyy year mm DD day");
String strdate = Formatter.format (mydate);
return strdate;
}
Public String fotmatDate3 (Date mydate) {
SimpleDateFormat formatter = new SimpleDateFormat ("Yyyy-mm-dd HH:mm:ss");
String strdate = Formatter.format (mydate);
return strdate;
}
Public String fotmatDate4 (Date mydate) {
SimpleDateFormat formatter = new SimpleDateFormat ("E yyyy. Mm.dd ' at ' hh:mm:ss a zzz ');
String strdate = Formatter.format (mydate);
return strdate;
}
Public String fotmatDate5 (Date mydate) {
SimpleDateFormat formatter = new SimpleDateFormat ("Yyyy/mm/dd");
String strdate = Formatter.format (mydate);
return strdate;
}
Public String fotmatDate6 (Date mydate) {
SimpleDateFormat formatter = new SimpleDateFormat ("Mm-dd hh:mm");
String strdate = Formatter.format (mydate);
return strdate;
}
public static void Main (String args[]) {
System.out.println ("AAA");
Dodate dd=new dodate ();
System.out.println (Dd.fotmatdate1 (New Date ()));
System.out.println (Dd.fotmatdate2 (New Date ()));
System.out.println (Dd.fotmatdate3 (New Date ()));
System.out.println (Dd.fotmatdate4 (New Date ()));
System.out.println (Dd.fotmatdate5 (New Date ()));
System.out.println (Dd.fotmatdate6 (New Date ()));
}
}
Running Result: C:/java>java dodate
Aaa
June 06, 2004 18:53 00 seconds
June 06, 2004
2004-06-06 18:53:01
Sunday 2004.06.06 at 06:53:01 pm CST
2004/06/06
06-06 18:53