Java by API/java.text/SimpleDateFormat
Содержание
- 1 new SimpleDateFormat("dd MMM yyyy hh:mm:ss zzz")
- 2 new SimpleDateFormat("E MMM dd yyyy")
- 3 new SimpleDateFormat("hh:mm:ss")
- 4 new SimpleDateFormat(String pattern, Locale locale)
- 5 new SimpleDateFormat("yyyy-MM-dd")
- 6 SimpleDateFormat: applyPattern(String pattern)
- 7 SimpleDateFormat: format(Date d)
- 8 SimpleDateFormat: parse(String text, ParsePosition pos)
- 9 SimpleDateFormat: setDateFormatSymbols(DateFormatSymbols newFormatSymbols)
new SimpleDateFormat("dd MMM yyyy hh:mm:ss zzz")
/*
* Output:
11:27:37
28 Apr 2006 11:27:37 PDT
Fri Apr 28 2006
*/
import java.text.SimpleDateFormat;
import java.util.Date;
public class MainClass {
public static void main(String args[]) {
Date date = new Date();
SimpleDateFormat sdf;
sdf = new SimpleDateFormat("hh:mm:ss");
System.out.println(sdf.format(date));
sdf = new SimpleDateFormat("dd MMM yyyy hh:mm:ss zzz");
System.out.println(sdf.format(date));
sdf = new SimpleDateFormat("E MMM dd yyyy");
System.out.println(sdf.format(date));
}
}
new SimpleDateFormat("E MMM dd yyyy")
/*
* Output:
11:27:37
28 Apr 2006 11:27:37 PDT
Fri Apr 28 2006
*/
import java.text.SimpleDateFormat;
import java.util.Date;
public class MainClass {
public static void main(String args[]) {
Date date = new Date();
SimpleDateFormat sdf;
sdf = new SimpleDateFormat("hh:mm:ss");
System.out.println(sdf.format(date));
sdf = new SimpleDateFormat("dd MMM yyyy hh:mm:ss zzz");
System.out.println(sdf.format(date));
sdf = new SimpleDateFormat("E MMM dd yyyy");
System.out.println(sdf.format(date));
}
}
new SimpleDateFormat("hh:mm:ss")
/*
* Output:
11:27:37
28 Apr 2006 11:27:37 PDT
Fri Apr 28 2006
*/
import java.text.SimpleDateFormat;
import java.util.Date;
public class MainClass {
public static void main(String args[]) {
Date date = new Date();
SimpleDateFormat sdf;
sdf = new SimpleDateFormat("hh:mm:ss");
System.out.println(sdf.format(date));
sdf = new SimpleDateFormat("dd MMM yyyy hh:mm:ss zzz");
System.out.println(sdf.format(date));
sdf = new SimpleDateFormat("E MMM dd yyyy");
System.out.println(sdf.format(date));
}
}
new SimpleDateFormat(String pattern, Locale locale)
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;
public class Main {
public static Calendar parseTimestamp(String timestamp) throws Exception {
SimpleDateFormat sdf = new SimpleDateFormat("dd-MMM-yyyy HH:mm:ss", Locale.US);
Date d = sdf.parse(timestamp);
Calendar cal = Calendar.getInstance();
cal.setTime(d);
return cal;
}
public static void main(String a[]) throws Exception {
String timestampToParse = "24-Feb-2009 17:39:35";
System.out.println("Timestamp : " + timestampToParse);
SimpleDateFormat sdf = new java.text.SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
System.out.println("Calendar : " + sdf.format(parseTimestamp(timestampToParse).getTime()));
}
}
new SimpleDateFormat("yyyy-MM-dd")
/*
Output:
on Tue Oct 01 00:00:00 PDT 2013 in Vancouver, B.C.
on Sun Mar 01 00:00:00 PST 1248 in Ottawa, ON
on Mon Jun 06 00:00:00 PST 1323 in Toronto, ON
*/
import java.text.ParsePosition;
import java.text.SimpleDateFormat;
import java.util.Date;
public class MainClass {
public static void main(String[] a) {
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
String input[] = { "2013-10-01 Vancouver, B.C.",
"1248-03-01 Ottawa, ON",
"1323-06-06 Toronto, ON" };
for (int i = 0; i < input.length; i++) {
ParsePosition pp = new ParsePosition(0);
Date d = formatter.parse(input[i], pp);
if (d == null) {
System.err.println("Invalid date in " + input[i]);
continue;
}
String location = input[i].substring(pp.getIndex());
System.out.println(" on " + d + " in " + location);
}
}
}
SimpleDateFormat: applyPattern(String pattern)
import java.text.DateFormatSymbols;
import java.text.SimpleDateFormat;
import java.util.Date;
public class MainClass {
public static void main(String args[]) throws Exception {
SimpleDateFormat sdf = new SimpleDateFormat();
DateFormatSymbols dfs = sdf.getDateFormatSymbols();
String era[] = { "BCE", "CE" };
dfs.setEras(era);
sdf.setDateFormatSymbols(dfs);
sdf.applyPattern("MMMM d yyyy G");
System.out.println(sdf.format(new Date()));
}
}
SimpleDateFormat: format(Date d)
/*
* Output:
11:27:37
28 Apr 2006 11:27:37 PDT
Fri Apr 28 2006
*/
import java.text.SimpleDateFormat;
import java.util.Date;
public class MainClass {
public static void main(String args[]) {
Date date = new Date();
SimpleDateFormat sdf;
sdf = new SimpleDateFormat("hh:mm:ss");
System.out.println(sdf.format(date));
sdf = new SimpleDateFormat("dd MMM yyyy hh:mm:ss zzz");
System.out.println(sdf.format(date));
sdf = new SimpleDateFormat("E MMM dd yyyy");
System.out.println(sdf.format(date));
}
}
SimpleDateFormat: parse(String text, ParsePosition pos)
/*
Output:
on Tue Oct 01 00:00:00 PDT 2013 in Vancouver, B.C.
on Sun Mar 01 00:00:00 PST 1248 in Ottawa, ON
on Mon Jun 06 00:00:00 PST 1323 in Toronto, ON
*/
import java.text.ParsePosition;
import java.text.SimpleDateFormat;
import java.util.Date;
public class MainClass {
public static void main(String[] a) {
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
String input[] = { "2013-10-01 Vancouver, B.C.",
"1248-03-01 Ottawa, ON",
"1323-06-06 Toronto, ON" };
for (int i = 0; i < input.length; i++) {
ParsePosition pp = new ParsePosition(0);
Date d = formatter.parse(input[i], pp);
if (d == null) {
System.err.println("Invalid date in " + input[i]);
continue;
}
String location = input[i].substring(pp.getIndex());
System.out.println(" on " + d + " in " + location);
}
}
}
SimpleDateFormat: setDateFormatSymbols(DateFormatSymbols newFormatSymbols)
import java.text.DateFormatSymbols;
import java.text.SimpleDateFormat;
import java.util.Date;
public class MainClass {
public static void main(String args[]) throws Exception {
SimpleDateFormat sdf = new SimpleDateFormat();
DateFormatSymbols dfs = sdf.getDateFormatSymbols();
String era[] = { "BCE", "CE" };
dfs.setEras(era);
sdf.setDateFormatSymbols(dfs);
sdf.applyPattern("MMMM d yyyy G");
System.out.println(sdf.format(new Date()));
}
}
