📄 formattime.htm
字号:
<HTML>
<HEAD>
<META http-equiv="Content-Type" content="text/html; charset=UTF-8">
<TITLE>Formatting the Time Using a Custom Format (Java Developers Almanac Example)
</TITLE>
<META CONTENT="Patrick Chan" NAME="AUTHOR">
<META CONTENT="Code Examples from The Java Developers Almanac 1.4" NAME="DESCRIPTION">
<META CONTENT="Addison-Wesley/Patrick Chan" NAME="OWNER">
<META CONTENT="3/20/02" NAME="revision">
<META CONTENT="no-cache" HTTP-EQUIV="Pragma">
<LINK href="/almanac.css" media="screen" type="text/css" rel="stylesheet">
</HEAD>
<BODY>
<TABLE CELLSPACING="0" CELLPADDING="0" BORDER="0">
<TR>
<TD></TD>
</TR>
</TABLE>
<br>
<TABLE CELLSPACING="0" CELLPADDING="0" BORDER="0">
<TR>
<TD></TD>
</TR>
<TR>
<TD rowspan="3"><A HREF="/?l=ex"><IMG BORDER="0" ALIGN="BOTTOM" HSPACE="10" SRC="/egs/almanac14a.jpg"></A></TD><TD VALIGN="top">
<h1>The Java Developers Almanac 1.4</h1>
<br>
Order this book from <a href="/cgi-bin/scripts/redirect.pl?l=ex&url=http://www.amazon.com/exec/obidos/ASIN/0201752808/xeo">Amazon</a>.
</TD>
</TR>
<TR>
<TD align="right" valign="bottom">
<FORM method="get" action="/cgi-bin/search/find.pl">
<INPUT size="25" name="words" type="text"><INPUT value="Search" type="submit">
</FORM>
</TD>
</TR>
</TABLE>
<HR color="#6666cc">
<TABLE CELLSPACING="0" CELLPADDING="0" BORDER="0">
<TR>
<TD valign="top"><script type="text/javascript">
<!--
google_ad_client = "pub-6001183370374757";
google_ad_width = 120;
google_ad_height = 600;
google_ad_format = "120x600_as";
google_ad_channel = "4777242811";
google_ad_type = "text_image";
google_color_border = "FFFFFF";
google_color_bg = "FFFFFF";
google_color_link = "6666CC";
google_color_url = "6666CC";
google_color_text = "000000";
//--></script><script src="http://pagead2.googlesyndication.com/pagead/show_ads.js" type="text/javascript"></script></TD><TD> </TD><TD valign="top">
<DIV ALIGN="LEFT">
<A HREF="/">Home</A>
>
<A HREF="../index.html">List of Packages</A>
>
<A HREF="../java.text/pkg.html">java.text</A><font color="#666666" class="xsmall-font">
[26 examples]
</font>
>
<B><A HREF="../java.text/pkg.html#Times">Times</A></B><font color="#666666" class="xsmall-font">
[4 examples]
</font>
</DIV><P>
<h3>e316. Formatting the Time Using a Custom Format</h3>
A pattern of special characters is used to specify the format of the
time. This example demonstrates some of the characters. For a complete
listing, see the javadoc documentation for the <code>SimpleDateFormat</code> class.
<P> Note: This example formats dates using the default locale
(which, in the author's case, is <code>Locale.ENGLISH</code>). If the example is
run in a different locale, the text (e.g., month names) will not be
the same.
<pre> Format formatter;
// The hour (1-12)
formatter = new SimpleDateFormat("h"); // 8
formatter = new SimpleDateFormat("hh"); // 08
// The hour (0-23)
formatter = new SimpleDateFormat("H"); // 8
formatter = new SimpleDateFormat("HH"); // 08
// The minutes
formatter = new SimpleDateFormat("m"); // 7
formatter = new SimpleDateFormat("mm"); // 07
// The seconds
formatter = new SimpleDateFormat("s"); // 3
formatter = new SimpleDateFormat("ss"); // 03
// The am/pm marker
formatter = new SimpleDateFormat("a"); // AM
// The time zone
formatter = new SimpleDateFormat("z"); // PST
formatter = new SimpleDateFormat("zzzz"); // Pacific Standard Time
formatter = new SimpleDateFormat("Z"); // -0800
// Get today's date
Date date = new Date();
// Some examples
formatter = new SimpleDateFormat("hh:mm:ss a");
String s = formatter.format(date);
// 01:12:53 AM
formatter = new SimpleDateFormat("HH.mm.ss");
s = formatter.format(date);
// 14.36.33
</pre>
<P><table width="600" CELLSPACING="0" CELLPADDING="2" BORDER="0">
<tr>
<td bgcolor="#6666cc" align="center"><font color="#ffffff">
<b>Related Examples</b></font></td>
</tr>
</table>
e317. <a class="eglink" href="ParseTime.html?l=rel">
Parsing the Time Using a Custom Format
</a>
<br>
e318. <a class="eglink" href="FormatTimeDef.html?l=rel">
Formatting and Parsing a Time for a Locale Using Default Formats
</a>
<br>
e319. <a class="eglink" href="FormatTimeLoc.html?l=rel">
Formatting and Parsing a Time for a Locale
</a>
<br>
<table width="600" CELLSPACING="0" CELLPADDING="2" BORDER="0">
<tr>
<td align="left">
<br>
See also:
<a class="eglink" href="/egs/java.text/pkg.html?l=rel#Dates">
Dates
</a>
<a class="eglink" href="/egs/java.text/pkg.html?l=rel#Messsages">
Messsages
</a>
<a class="eglink" href="/egs/java.text/pkg.html?l=rel#Numbers">
Numbers
</a>
<a class="eglink" href="/egs/java.text/pkg.html?l=rel#Words%20and%20Sentences">
Words and Sentences
</a>
</td>
</tr>
</table>
<br>
<br>
<FONT class="xsmall-font">
© 2002 Addison-Wesley.
</FONT></TD><TD> </TD><TD valign="top"><A href="http://compositesw.com/devzone?ref=javaalmanac"><IMG alt="Click Here" height="600" width="120" border="0" src="/csw_oad_120x600_final.gif"></A></TD>
</TR>
</TABLE>
</BODY>
<HEAD>
<META http-equiv="Content-Type" content="text/html; charset=UTF-8">
<META CONTENT="NO-CACHE" HTTP-EQUIV="PRAGMA">
</HEAD>
</HTML>
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -