java学习从入门到精通.htm

Java学习从入门到精通

lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt">J2SE</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">（</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt">Java2 
SDK Standard Edition</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">），可以从</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt">Sun</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">的</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt">Java</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">网站上下载到，</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt"><A 
href="http://java.sun.com/j2se/downloads.html" target=_blank><SPAN 
style="COLOR: black; TEXT-DECORATION: none; text-underline: none">http://java.sun.com/j2se/downloads.html</SPAN></A> 
</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">，</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt">JDK</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">当前最新的版本是</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt">J2SDK1.4.2</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">，建议下载该版本的</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt">JDK</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">，下载页面在这里：</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt"><A 
href="http://java.sun.com/j2se/1.4.2/download.html。" target=_blank><SPAN 
style="COLOR: black; TEXT-DECORATION: none; text-underline: none">http://java.sun.com/j2se/1.4.2/download.html</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: 宋体; TEXT-DECORATION: none; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana; text-underline: none"><SPAN 
lang=EN-US>。</SPAN></SPAN></A><BR><BR></SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">下载好的</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt">JDK</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">是一个可执行安装程序，默认安装完毕后会在</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt">C:\Program 
Files\Java\</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">目录下安装一套</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt">JRE</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">（供浏览器来使用），在</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt">C:\j2sdk1.4.2</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">下安装一套</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt">JDK</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">（也包括一套</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt">JRE</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">）。然后我们需要在环境变量</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt">PATH</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">的最前面增加</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt">java</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">的路径</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt">C:\j2sdk1.4.2\bin</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">。这样</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt">JDK</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">就安装好了。</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt"><BR><BR>2</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">、</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt"> 
JDK</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">的命令工具</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt"><BR>JDK</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">的最重要命令行工具：</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt"><BR>java</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">：</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt"> 
</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">启动</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt">JVM</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">执行</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt">class<BR>javac</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">：</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt"> 
Java</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">编译器</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt"><BR>jar</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">：</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt"> 
Java</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">打包工具</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt"><BR>javadoc</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">：</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt"> 
Java</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">文档生成器</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt"><BR></SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">这些命令行必须要非常非常熟悉，对于每个参数都要很精通才行。对于这些命令的学习，</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt">JDK 
Documentation</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">上有详细的文档。</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt"><BR><BR><BR></SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">二、</SPAN><SPAN 
lang=EN-US 
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JDK Documentation<BR><BR>Documentation</SPAN><SPAN 
style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">在</SPAN><SPAN 
lang=EN-US 
style="COLOR: black; FONT-FAMILY: Verdana; mso-bidi-font-size: 10.5pt; mso-bidi-font-family: 'MS Shell Dlg'; mso-font-kerning: 0pt">JDK</SPAN><SPAN