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Java日期时间(Date/Time)：DateFormat格式代码

2016-07-19 07:57 876 查看

简单的DateFormat格式代码：

import java.util.*;
import java.text.*;

public class DateDemo {
public static void main(String args[]) {

Date dNow = new Date( );
SimpleDateFormat ft =
new SimpleDateFormat ("E yyyy.MM.dd 'at' hh:mm:ss a zzz");

System.out.println("Current Date: " + ft.format(dNow));
}
}

输出结果：

Current Date: Sun 2004.07.18 at 04:14:09 PM PDT

格式定义如下：

Character	描述	Example
G	Era designator	AD
y	Year in four digits	2001
M	Month in year	July or 07
d	Day in month	10
h	Hour in A.M./P.M. (1~12)	12
H	Hour in day (0~23)	22
m	Minute in hour	30
s	Second in minute	55
S	Millisecond	234
E	Day in week	Tuesday
D	Day in year	360
F	Day of week in month	2 (second Wed. in July)
w	Week in year	40
W	Week in month	1
a	A.M./P.M. marker	PM
k	Hour in day (1~24)	24
K	Hour in A.M./P.M. (0~11)	10
z	Time zone	Eastern Standard Time
'	Escape for text	Delimiter
"	Single quote	`

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