?? j-scjp-3-1.html
字號:
<html> <!-- This panel generated from the developerWorks XML tag set for tutorials, Version 2.0.0. (C) Copyright 2000, 2001 IBM Corporation. All rights reserved. --> <head><META http-equiv="Content-Type" content="text/html; charset=GB2312">
<title>流程控制、斷言和異常處理 </title>
<style type="text/css"><!--
body { color: #000000; background-color: #ffffff; }
dt { font-weight: bold; }
code { font-family: Courier, monospace; font-size: +2; }
titleCode { font-family: Courier, monospace; font-size: +4; }
ol.alpha { list-style-type: upper-alpha; }
span.center { text-align: center; }
span.right { text-align: right; }
span.constant { color: #990099; }
span.keyword { color: #993333; }
span.function-name { color: #666633; }
span.comment { color: #666666; }
span.string { color: #0000ff; }
span.variable-name { color: #000066; }
span.type { color: #006600; }
span.spacer { font-size: 1pt; }
.small { font-family: Verdana, sans-serif; font-size: 8pt }
.divider { color: #999999; font-family: Verdana, Arial, sans-serif; font-weight: normal }
a.mainlink:link { text-decoration: none; color: #ffffff; font-family: Verdana, Arial, sans-serif; font-weight: bold; font-size: 8pt }
a.mainlink:visited { text-decoration: none; color: #ffffff; font-family: Verdana, Arial, sans-serif; font-weight: bold; font-size: 8pt }
a.mainlink:hover { text-decoration: underline; color: #ffffff; font-family: Verdana, Arial, sans-serif; font-weight: bold; font-size: 8pt }
.hbg { background-color : #006699; background-image: url(../i/lines.gif) ;background-repeat: repeat; }
.tbg { background-color : #006699; background-image: url(../i/gr760.gif); }
.tbgc { background-color : #006699 }
.bbg { background-color : #000000; vertical-align: middle }
.dbg { background-color : #6699cc }
.mbg { background-color : #99ccff }
.lbg { background-color : #cce5ff }
-->
</style>
</head>
<body bgcolor="ffffff">
<script language="javascript">
<!-- var emailAbstract="本教程的目的是幫助程序員準(zhǔn)備 Sun Certified Java Programmer (SCJP) 1.4 考試，提供了對考試的所有主要目標(biāo)的詳細(xì)介紹。";
var justTitle=" Java 認(rèn)證成功之路，第 1 部分：SCJP ";
var tutorialPrereqs="http://www-106.ibm.com/developerworks/edu/j-dw-java-scjp-i.html";
var menu1blurb="開始之前 ";
var menu2blurb="聲明和訪問控制 ";
var menu3blurb="流程控制、斷言和異常處理 ";
var menu4blurb="垃圾收集 ";
var menu5blurb="語言基礎(chǔ) ";
var menu6blurb="操作符和賦值 ";
var menu7blurb="覆蓋、重載和面向?qū)ο?";
var menu8blurb="線程 ";
var menu9blurb="java.lang 包中的基本類 ";
var menu10blurb="集合框架 ";
var menu11blurb="結(jié)束語和參考資料 ";
var browser = "x";
if (navigator.userAgent.indexOf("Mozilla/4") != -1) browser = "N3";
else if (navigator.userAgent.indexOf("Mozilla/3") != -1) browser = "N3";
else browser = "x";
if (browser=="N3")
{
var menu1over=new Image(108,68);
var menu1out=new Image(108,68);
var menu2over=new Image(108,68);
var menu2out=new Image(108,68);
var menu3over=new Image(108,68);
var menu3out=new Image(108,68);
var menu4over=new Image(108,68);
var menu4out=new Image(108,68);
var menu5over=new Image(108,68);
var menu5out=new Image(108,68);
var menu6over=new Image(108,68);
var menu6out=new Image(108,68);
var menu7over=new Image(108,68);
var menu7out=new Image(108,68);
var menu8over=new Image(108,68);
var menu8out=new Image(108,68);
var menu9over=new Image(108,68);
var menu9out=new Image(108,68);
var menu10over=new Image(108,68);
var menu10out=new Image(108,68);
var menu11over=new Image(108,68);
var menu11out=new Image(108,68);
var topmainover=new Image(77,15);
var topmainout=new Image(77,15);
var bottommainover=new Image(77,15);
var bottommainout=new Image(77,15);
var topsectionover=new Image(98,15);
var topsectionout=new Image(98,15);
var bottomsectionover=new Image(98,15);
var bottomsectionout=new Image(98,15);
var topfeedbackover=new Image(80,15);
var topfeedbackout=new Image(80,15);
var bottomfeedbackover=new Image(80,15);
var bottomfeedbackout=new Image(80,15);
var toppreviousover=new Image(77,15);
var toppreviousout=new Image(77,15);
var bottompreviousover=new Image(77,15);
var bottompreviousout=new Image(77,15);
var topnextover=new Image(60,15);
var topnextout=new Image(60,15);
var bottomnextover=new Image(60,15);
var bottomnextout=new Image(60,15);
var topnextsectionover=new Image(108,15);
var topnextsectionout=new Image(108,15);
var bottomnextsectionover=new Image(108,15);
var bottomnextsectionout=new Image(108,15);
menu1over.src="imagemaster/himenu1.jpg";
menu1out.src="imagemaster/menu1.jpg";
menu2over.src="imagemaster/himenu2.jpg";
menu2out.src="imagemaster/menu2.jpg";
menu3over.src="imagemaster/himenu3.jpg";
menu3out.src="imagemaster/menu3.jpg";
menu4over.src="imagemaster/himenu4.jpg";
menu4out.src="imagemaster/menu4.jpg";
menu5over.src="imagemaster/himenu5.jpg";
menu5out.src="imagemaster/menu5.jpg";
menu6over.src="imagemaster/himenu6.jpg";
menu6out.src="imagemaster/menu6.jpg";
menu7over.src="imagemaster/himenu7.jpg";
menu7out.src="imagemaster/menu7.jpg";
menu8over.src="imagemaster/himenu8.jpg";
menu8out.src="imagemaster/menu8.jpg";
menu9over.src="imagemaster/himenu9.jpg";
menu9out.src="imagemaster/menu9.jpg";
menu10over.src="imagemaster/himenu10.jpg";
menu10out.src="imagemaster/menu10.jpg";
menu11over.src="imagemaster/himenu11.jpg";
menu11out.src="imagemaster/menu11.jpg";
var mainblurb="主菜單";
var sectionblurb="章節(jié)菜單";
var feedbackblurb="提交反饋意見";
var previousblurb="上一屏";
var nextblurb="下一屏";
var nextsectionblurb="下一章";
topmainover.src="../i/h-main.gif";
topmainout.src="../i/main.gif";
bottommainover.src="../i/h-main.gif";
bottommainout.src="../i/main.gif";
topsectionover.src="../i/h-section.gif";
topsectionout.src="../i/section.gif";
bottomsectionover.src="../i/h-section.gif";
bottomsectionout.src="../i/section.gif";
topfeedbackover.src="../i/h-feedback.gif";
topfeedbackout.src="../i/feedback.gif";
bottomfeedbackover.src="../i/h-feedback.gif";
bottomfeedbackout.src="../i/feedback.gif";
toppreviousover.src="../i/h-previous.gif";
toppreviousout.src="../i/previous.gif";
bottompreviousover.src="../i/h-previous.gif";
bottompreviousout.src="../i/previous.gif";
topnextover.src="../i/h-next.gif";
topnextout.src="../i/next.gif";
bottomnextover.src="../i/h-next.gif";
bottomnextout.src="../i/next.gif";
topnextsectionout.src="../i/nextsection.gif";
topnextsectionover.src="../i/h-nextsection.gif";
bottomnextsectionout.src="../i/nextsection.gif";
bottomnextsectionover.src="../i/h-nextsection.gif";
}
function iOut(image)
{
if (browser=="N3")document[image].src=eval(image + "out.src");
}
function iOver(image)
{
if (browser=="N3")document[image].src=eval(image + "over.src");
}
// -->
</script><a href="#navskip"><img border="0" alt="Skip to main content" src="../i/c.gif"></a>
<table cellpadding="0" cellspacing="0" border="0" width="100%">
<tr>
<td class="tbgc" width="160"><a href="/developerWorks/cgi-bin/click.cgi?url=http://www.ibm.com/cn"><img height="47" width="160" alt="IBM" border="0" src="../i/ibm-logo.gif"></a></td><td class="tbg" width="195"><font color="#99ccff" size="2"><b>中國</b></font><a href="#main"><img alt="Skip to main content" height="1" width="195" border="0" src="../i/c.gif"></a></td><td valign="top" align="right" class="tbgc" width="100%">
<table cellspacing="0" cellpadding="0" border="0">
<form name="form1" id="form1" action="http://202.95.2.149/cgi-bin/dWsearch.pl" method="get">
<tr>
<td colspan="6"><img alt="" height="4" width="390" border="0" src="../i/c.gif"></td>
</tr>
<tr valign="middle">
<td class="dwsearch" height="8"><select class="dwsearch" name="selScope"><option value="dW">dW 中國所有內(nèi)容</option><option value="dW">................. </option><option value="dW">dW 中國技術(shù)專區(qū):</option><option value="comptZ"> 組件技術(shù)</option><option value="javaZ"> Java 技術(shù)</option><option value="linuxZ"> Linux</option><option value="xmlZ"> XML</option><option value="linuxZ">dW 中國特別專題:</option><option value="securityZ"> 安全</option><option value="unicodeZ"> Unicode</option><option value="all">IBM 全部內(nèi)容</option></select></td><td class="small"><img alt="" border="0" height="1" width="5" src="../i/c.gif"></td><td><input maxlength="100" size="15" height="15" name="UserRestriction" class="dwsearch" type="text"></td><td><img alt="" height="1" width="5" border="0" src="../i/c.gif"></td><td width="64"><input alt="搜索" name="Search" value="Search" border="0" height="23" width="64" src="../i/search.gif" type="image"></td><td valign="top"><img alt="" height="1" width="34" border="0" src="../i/c.gif"></td>
</tr>
<tr valign="top">
<td class="small" colspan="6"><a target="_blank" style="color: #ffffff;" href="http://202.95.2.149/help.htm">高級搜索</a><img alt="" height="1" width="1" border="0" src="../i/c.gif"></td>
</tr>
<tr>
<td colspan="6"><img alt="" height="4" width="390" border="0" src="../i/c.gif"></td>
</tr>
</form>
</table>
</td>
</tr>
<tr>
<td class="hbg" height="21" width="160"></td><td class="bbg" valign="top" height="21" colspan="2"> <a href="/developerWorks/cgi-bin/click.cgi?url=http://www-900.ibm.com/cn/" class="mainlink">IBM 主頁</a><span class="divider"> | </span><a href="/developerWorks/cgi-bin/click.cgi?url=http://www-900.ibm.com/cn/products/index.shtml" class="mainlink">產(chǎn)品與服務(wù)</a><span class="divider"> | </span><a href="/developerWorks/cgi-bin/click.cgi?url=http://www-900.ibm.com/cn/support/index.shtml" class="mainlink">支持與下載</a><span class="divider"> | </span><a href="/developerWorks/cgi-bin/click.cgi?url=http://www-900.ibm.com/cn/account/index.shtml" class="mainlink">個(gè)性化服務(wù)</a></td>
</tr>
</table>
<TABLE width="100%" cellspacing="0" cellpadding="0" border="0">
<TR>
<TD bgcolor="#ffffff" height="1" width="150"><IMG src="../i/c.gif" width="150" height="1"></TD>
</TR>
<TR>
<TD bgcolor="#cc6633" height="3" width="150"><IMG src="../i/c.gif" width="150" height="3"></TD>
</TR>
<TR>
<TD bgcolor="#333333" height="1" width="150"><IMG src="../i/c.gif" width="150" height="1"></TD>
</TR>
<TR>
<TD bgcolor="#000000" height="1" width="150"><IMG src="../i/c.gif" width="150" height="1"></TD>
</TR>
<TR>
<TD bgcolor="#ffffff" height="1" width="150"><IMG src="../i/c.gif" width="150" height="2"></TD>
</TR>
</TABLE>
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tr>
<td><font size="-1" face="Verdana, sans-serif"><a href="http://www.ibm.com/">IBM</a> : <a href="/developerWorks/cn/index.shtml">developerWorks 中國網(wǎng)站</a> : <a href="/developerWorks/cn/java/index.shtml">java</a> ： <a href="/developerWorks/cn/cnedu.nsf/java-onlinecourse-bytitle?OpenView&Count=500">教學(xué) - 在線教程</a></font>
<br>
<img alt=" Java 認(rèn)證成功之路，第 1 部分：SCJP " src="imagemaster/masthead.jpg"></td><td width="*" valign="bottom" align="right"><a border="0" href="j-scjp.zip"><img alt="下載 ZIP 文件" border="0" src="../i/icon-zip.gif"></a><a target="_blank" href="../tutorial_eng/index.html" border="0"><img alt="英文原文" border="0" src="../i/icon-source.gif"></a>
</td>
</tr>
<tr>
<td height="2" colspan="2"><img height="2" width="1" src="../i/c.gif"></td>
</tr>
</table>
?? 快捷鍵說明
復(fù)制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -