How to use Java Formatter to format date and time value
Description
%t formats time and date information.
%t specifier requires the use of a suffix to describe the portion and
precise format of the time or date desired.
Format List
The time and date suffixes are shown in the following table.
| Suffix | Replaced By |
|---|---|
| a | Abbreviated weekday name |
| A | Full weekday name |
| b | Abbreviated month name |
| B | Full month name |
| c | Standard date and time string formatted as day month date hh::mm:ss tzone year |
| C | First two digits of year |
| d | Day of month as a decimal (01-31) |
| D | month/day/year |
| e | Day of month as a decimal (1-31) |
| F | year-month-day |
| h | Abbreviated month name |
| H | Hour (00 to 23) |
| I | Hour (01 to 12) |
| j | Day of year as a decimal (001 to 366) |
| k | Hour (0 to 23) |
| l | Hour (1 to 12) |
| L | Millisecond (000 to 999) |
| m | Month as decimal (01 to 13) |
| M | Minute as decimal (00 to 59) |
| N | Nanosecond (000000000 to 999999999) |
| p | Locale's equivalent of AM or PM in lowercase |
| Q | Milliseconds from 1/1/1970 |
| r | hh:mm:ss (12-hour format) |
| R | hh:mm (24-hour format) |
| S | Seconds (00 to 60) |
| s | Seconds from 1/1/1970 UTC |
| T | hh:mm:ss (24-hour format) |
| y | Year in decimal without century (00 to 99) |
| Y | Year in decimal including century (0001 to 9999) |
| z | Offset from UTC |
| Z | Time zone name |
To display minutes, you would use %tM, and
M indicates minutes in a two-character field.
The argument corresponding to the %t specifier must be of type Calendar, Date, Long, or long.
Example
The following code shows how to use format('%tB %tb %tm', cal, cal, cal) to display month name and month number.
//from w w w . j a v a 2 s . c o m
import java.util.Calendar;
import java.util.Formatter;
public class Main {
public static void main(String args[]) {
Formatter fmt = new Formatter();
Calendar cal = Calendar.getInstance();
// Display month by name and number.
fmt = new Formatter();
fmt.format("%tB %tb %tm", cal, cal, cal);
System.out.println(fmt);
}
}
The output:
Example 2
The following code displays standard 12-hour time format.
import java.util.Calendar;
import java.util.Formatter;
//w ww. jav a 2 s. c o m
public class Main {
public static void main(String args[]) {
Formatter fmt = new Formatter();
Calendar cal = Calendar.getInstance();
// Display standard 12-hour time format.
fmt.format("%tr", cal);
System.out.println(fmt);//
}
}
The output:
Example 3
The following code uses the %tc to display time and date information
in a complete form.
import java.util.Calendar;
import java.util.Formatter;
/*from w w w .j a v a 2 s . c o m*/
public class Main {
public static void main(String args[]) {
Formatter fmt = new Formatter();
Calendar cal = Calendar.getInstance();
// Display complete time and date information.
fmt = new Formatter();
fmt.format("%tc", cal);
System.out.println(fmt);
}
}
The output:
Example 4
The following code only shows the hour and minute information.
import java.util.Calendar;
import java.util.Formatter;
// w ww . ja va 2s .c o m
public class Main {
public static void main(String args[]) {
Formatter fmt = new Formatter();
Calendar cal = Calendar.getInstance();
// Display just hour and minute.
fmt = new Formatter();
fmt.format("%tl:%tM", cal, cal);
System.out.println(fmt);
}
}
The output:
Example 5
The following code displays day of month as a decimal.
import java.util.Calendar;
import java.util.Formatter;
/*from ww w . java 2 s .c om*/
public class Main {
public static void main(String args[]) {
Formatter fmt = new Formatter();
Calendar cal = Calendar.getInstance();
fmt.format("Today is day %te of %<tB, %<tY", cal);
System.out.println(fmt);
}
}
The output:
