java中如何按一定的格式输出时间



题目2: 按一定的格式输出时间
本章源码
马克- to-win:马克 java社区:防盗版实名手机尾号: 73203。
import java.util.*;
import java.text.SimpleDateFormat;
public class Test {
    public static void main(String[] args) {
        Date date = new Date();//获取当前日期
        SimpleDateFormat df = new SimpleDateFormat("yyyy-MMM-dd kk:mm:ss a");
        System.out.println(df.format(date));//按yyyy-MMM-dd kk:mm:ss a这个格式来格式化date
        SimpleDateFormat df1 = new SimpleDateFormat(
                "yyyyy.MMMMM.dd GGG hh:mm aaa");
        System.out.println(df1.format(date));//按yyyyy.MMMMM.dd GGG hh:mm aaa这个格式来格式化date,格式参见下表

    }
}


result is:




2014-五月-29 11:34:14 上午
02014.五月.29 公元 11:34 上午

后记:有关yyyy-MMM-dd kk:mm:ss a是什么意思,可以参考SimpleDateFormat的api文档:k: Hour in day (1-24)

Letter Date or Time Component Presentation Examples
G Era designator Text AD
y Year Year 1996; 96
M Month in year Month July; Jul; 07
w Week in year Number 27
W Week in month Number 2
D Day in year Number 189
d Day in month Number 10
F Day of week in month Number 2
E Day in week Text Tuesday; Tue
a Am/pm marker Text PM
H Hour in day (0-23) Number 0
k Hour in day (1-24) Number 24
K Hour in am/pm (0-11) Number 0
h Hour in am/pm (1-12) Number 12
m Minute in hour Number 30
s Second in minute Number 55
S Millisecond Number 978
z Time zone General time zone Pacific Standard Time; PST; GMT-08:00
Z Time zone RFC 822 time zone -0800