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Friday, June 13, 2008

java已发行的版本及版本名称

版本号名称中文名发布日期
JDK 1.1.4 Sparkler 宝石 1997-09-12
JDK 1.1.5 Pumpkin 南瓜 1997-12-13
JDK 1.1.6 Abigail 阿比盖尔--女子名 1998-04-24
JDK 1.1.7 Brutus 布鲁图--古罗马政治家和将军 1998-09-28
JDK 1.1.8 Chelsea 切尔西--城市名 1999-04-08
J2SE 1.2 Playground 运动场 1998-12-04
J2SE 1.2.1 none 无 1999-03-30
J2SE 1.2.2 Cricket 蟋蟀 1999-07-08
J2SE 1.3 Kestrel 美洲红隼 2000-05-08
J2SE 1.3.1 Ladybird 瓢虫 2001-05-17
J2SE 1.4.0 Merlin 灰背隼 2002-02-13
J2SE 1.4.1 grasshopper 蚱蜢 2002-09-16
J2SE 1.4.2 Mantis 螳螂 2003-06-26
将来发行的版本:
J2SE 5.0 (1.5.0) Tiger 老虎已发布了Beta版本
J2SE 5.1 (1.5.1) Dragonfly 蜻蜓未发布
J2SE 6.0 (1.6.0) Mustang 野马未发布

从JDK1.2.2开始,主要版本(如1.3,1.4,5.0)都是以鸟类或哺乳动物来命名的. 而它们的bug修正版本(如1.2.2,1.3.1,1.4.2)都是以昆虫命名的.

转自: http://www.jspcn.net/htmlnews/11049407933281549.html

Tuesday, March 04, 2008

IE bug: id and name in getElementById function

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title> Test id and name property in IE7 </title>
</head>
<body>
<input name="t1"/> Input tag with name t1, IE7 will alert "INPUT"<br />
<a name="t1">Anchor t1, if remove input element, IE7 will alert "A"</a><br />
<div id="t1">div tag with id t1</div>

<script type="text/javascript">
alert(document.getElementById('t1').tagName);
</script>
</body>
</html>

Opera has the same problem.

Wednesday, January 30, 2008

window frames property test

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Frameset//EN"
"http://www.w3.org/TR/html4/frameset.dtd">
<HTML>
<HEAD>
<TITLE>A frameset document</TITLE>
</HEAD>
<FRAMESET cols="40%, 60%" name="fs" id="frs">
<FRAME src="fm1.html" frameborder="0" name="fmn1" id="fmi1"/>
<FRAME src="fm2.html" frameborder="0" name="fmn2" id="fmi2"/>
</FRAMESET>
</HTML>

debug under firebug console:
>>> window
Window frames.html
>>> window.frames
Window frames.html
>>> window.frames[0]
Window fm1.html
>>> window.frames[1]
Window fm2.html
>>> window.frames[1].id
# => undefined
>>> window.frames[1].src
# => undefined
>>> window.frames[1].name
"fmn2"
>>> document.getElementById('fmi1')
<frame id="fmi1" name="fmn1" frameborder="0" src="fm1.html">
>>> document.getElementById('fmi1').id
"fmi1"

Object window has name propery, but has no id and src properties, so window.frames[1].src is undefined, we can get src value throught top window's element object, such as cument.getElementById('fmi1').id

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