⭐ 欢迎来到虫虫下载站! | 📦 资源下载 📁 资源专辑 ℹ️ 关于我们
⭐ 虫虫下载站

📄 j-chat-3-3.html

📁 在这篇免费的 dW 专有的独家教程中
💻 HTML
📖 第 1 页 / 共 2 页
字号:
        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"; menu12over.src="imagemaster/himenu12.jpg"; menu12out.src="imagemaster/menu12.jpg";         var mainblurb="Main menu";        var sectionblurb="Section menu";        var feedbackblurb="Give feedback on this tutorial";        var previousblurb="Go to previous panel";        var nextblurb="Go to next panel";        var nextsectionblurb="Go to next section";        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><script src="../i/emailfriend.js" language="javascript"></script><a href="#navskip"><img border="0" alt="Skip to main content" src="http://www.ibm.com/i/c.gif"></a><table cellpadding="0" cellspacing="0" border="0" width="100%"><tr bgcolor="#006699"><td width="300"><table cellpadding="0" cellspacing="0" border="0" width="300"><tr bgcolor="#006699"><td width="150"><img height="25" width="150" alt="IBM" src="../i/mast_logo.gif"></td><td background="../i/mgradient.gif" width="150"><font face="Verdana, sans-serif" color="#99ccff" size="-2"><b>&nbsp;</b></font><br><img alt="" height="1" width="150" src="http://www.ibm.com/i/c.gif"></td></tr></table></td><td width="300" align="left"><table cellpadding="0" cellspacing="0" border="0" width="300"><tr><td width="100"><a href="http://www.ibm.com/shop1/"><img alt="Shop" height="25" width="100" src="../i/shopibm.gif" border="0"></a></td><td width="100"><a href="http://www.ibm.com/support/"><img alt="Support" height="25" width="100" src="../i/support.gif" border="0"></a></td><td width="100"><a href="http://www.ibm.com/download/"><img alt="Downloads" height="25" width="100" src="../i/downloads.gif" border="0"></a></td></tr></table></td></tr></table><table cellpadding="0" cellspacing="0" border="0" width="100%"><tr bgcolor="#000000"><td><table cellpadding="0" cellspacing="0" border="0" width="600"><tr><td width="150" bgcolor="#006699"><img alt="" height="21" width="150" src="../i/mast_lnav_sp.gif"></td><td bgcolor="#000000" colspan="4"><table height="21" cellpadding="0" cellspacing="0" border="0"><tr><td align="center" width="79" bgcolor="#000000" height="21"><a href="http://www.ibm.com/home/" style="color: #ffffff;" class="nav"><font face="Verdana, sans-serif" color="#ffffff" size="-2"><b>IBM Home</b></font></a></td><td width="1" bgcolor="#959595"><img alt="" height="1" width="1" src="http://www.ibm.com/i/c.gif"></td><td align="center" width="74" bgcolor="#000000" height="21"><a href="http://www.ibm.com/products/" style="color: #ffffff;" class="nav"><font face="Verdana, sans-serif" color="#ffffff" size="-2"><b>Products</b></font></a></td><td width="1" bgcolor="#959595"><img alt="" height="1" width="1" src="http://www.ibm.com/i/c.gif"></td><td align="center" width="81" bgcolor="#000000" height="21"><a href="http://www.ibm.com/services/" style="color: #ffffff;" class="nav"><font face="Verdana, sans-serif" color="#ffffff" size="-2"><b>Consulting</b></font></a></td><td width="1" bgcolor="#959595"><img alt="" height="1" width="1" src="http://www.ibm.com/i/c.gif"></td><td align="center" width="81" bgcolor="#000000" height="21"><a href="http://www.ibm.com/solutions/" style="color: #ffffff;" class="nav"><font face="Verdana, sans-serif" color="#ffffff" size="-2"><b>Industries</b></font></a></td><td width="1" bgcolor="#959595"><img alt="" height="1" width="1" src="http://www.ibm.com/i/c.gif"></td><td align="center" width="57" bgcolor="#000000" height="21"><a href="http://www.ibm.com/news/" style="color: #ffffff;" class="nav"><font face="Verdana, sans-serif" color="#ffffff" size="-2"><b>News</b></font></a></td><td width="1" bgcolor="#959595"><img alt="" height="1" width="1" src="http://www.ibm.com/i/c.gif"></td><td align="center" width="78" bgcolor="#000000" height="21"><a href="http://www.ibm.com/ibm/" style="color: #ffffff;" class="nav"><font face="Verdana, sans-serif" color="#ffffff" size="-2"><b>About IBM</b></font></a></td></tr></table></td></tr></table></td></tr></table><TABLE border="0" cellpadding="0" cellspacing="0" width="100%"><TR><TD width="150" height="1" bgcolor="#ffffff"><IMG alt="" height="1" width="150" src="http://www.ibm.com/i/c.gif"></TD></TR><TR><TD width="150" height="3" bgcolor="#cc6633"><IMG alt="" height="3" width="150" src="http://www.ibm.com/i/c.gif"></TD></TR><TR><TD width="150" height="1" bgcolor="#333333"><IMG alt="" height="1" width="150" src="http://www.ibm.com/i/c.gif"></TD></TR><TR><TD width="150" height="1" bgcolor="#000000"><IMG alt="" height="1" width="150" src="http://www.ibm.com/i/c.gif"></TD></TR></TABLE><table border="0" cellpadding="0" cellspacing="0" width="100%"><tr><td><font face="Verdana, sans-serif" size="-1"><a href="http://www.ibm.com/">IBM</a> : <a href="http://www.ibm.com/developer/">developerWorks</a> : <a href="http://www.ibm.com/developer/java/">Java</a> : <a href="http://www-105.ibm.com/developerworks/education.nsf/dw/java-onlinecourse-bytitle">Education - online courses</a></font><br x="7"><img src="imagemaster/masthead.jpg" alt="Building a Java chat server"></td><td width="*" valign="bottom" align="right"><a border="0" href="j-chat.zip"><img alt="Download tutorial zip file" border="0" src="../i/icon-zip.gif"></a><a border="0" href="j-chat-ltr.pdf"><img alt="View letter-sized PDF file" border="0" src="../i/icon-pdf-ltr.gif"></a><a border="0" href="j-chat-a4.pdf"><img alt="View A4-sized PDF file" border="0" src="../i/icon-pdf-a4.gif"></a><a href="javascript:void newWindow()" border="0"><img alt="E-mail this tutorial to a friend" border="0" src="../i/icon-email.gif"></a></td></tr><tr><td height="2" colspan="2"><img height="2" width="1" src="http://www.ibm.com/i/c.gif"></td></tr></table><TABLE border="0" cellpadding="0" cellspacing="0" width="100%"><TR><TD width="150" height="1" bgcolor="#000000" colspan="6"><IMG alt="" height="1" width="150" src="http://www.ibm.com/i/c.gif"></TD></TR><TR><TD background="../i/sw-gold.gif"><a border="0" href="index.html" onMouseOver="iOver('topmain'); iOver('bottommain'); self.status=mainblurb; return true;" onMouseOut="iOut('topmain'); iOut('bottommain'); self.status=''; return true;"><img alt="Main menu" border="0" src="../i/main.gif" name="topmain"></a></TD><TD background="../i/sw-gold.gif"><a border="0" onMouseOver="iOver('topsection'); iOver('bottomsection'); self.status=sectionblurb; return true;" onMouseOut="iOut('topsection'); iOut('bottomsection'); self.status=''; return true;" href="index3.html"><img alt="Section menu" border="0" src="../i/section.gif" name="topsection"></a></TD><TD background="../i/sw-gold.gif"><a border="0" onMouseOver="iOver('topfeedback'); iOver('bottomfeedback'); self.status=feedbackblurb; return true;" onMouseOut="iOut('topfeedback'); iOut('bottomfeedback'); self.status=''; return true;" href="j-chat-11-3.html"><img alt="Give feedback on this tutorial" border="0" src="../i/feedback.gif" name="topfeedback"></a></TD><TD width="100%" background="../i/sw-gold.gif"><img src="http://www.ibm.com/i/c.gif"></TD><TD background="../i/sw-gold.gif"><a border="0" onMouseOver="iOver('topprevious'); iOver('bottomprevious'); self.status=previousblurb; return true;" onMouseOut="iOut('topprevious'); iOut('bottomprevious'); self.status=''; return true;" href="j-chat-3-2.html"><img alt="Previous" border="0" src="../i/previous.gif" name="topprevious"></a></TD><TD background="../i/sw-gold.gif"><a border="0" onMouseOver="iOver('topnext'); iOver('bottomnext'); self.status=nextblurb; return true;" onMouseOut="iOut('topnext'); iOut('bottomnext'); self.status=''; return true;" href="j-chat-3-4.html"><img alt="Next" border="0" src="../i/next.gif" name="topnext"></a></TD></TR></TABLE><table bgcolor="ffffff" cellspacing="0" cellpadding="2" border="0" height="400" width="100%"><tr valign="bottom"><a name="navskip"></a><td height="25" colspan="4"><img border="0" height="25" width="562" src="imagemaster/titlebar3.jpg" alt="3. First things first"></td></tr><tr><td bgcolor="ffffff" width="15">&nbsp;</td><td bgcolor="ffffff" width="12">&nbsp;</td><td valign="top" align="left" bgcolor="ffffff" width="*"><p><br x="7"><table cellspacing="0" cellpadding="0" border="0"><tr><td width="90%"><font size="4" face="Verdana, Arial, Helvetica"><b>Sockets</b></font></td><td width="200" align="right"><font size="1" face="Verdana, Arial, Helvetica"><nobr>    page 3 of 7</nobr></font></td></tr></table><br x="7"><br x="7"></p><font size="2" face="Verdana, Arial, Helvetica"><p>Our communications between client and server will pass through a
Java object called a Socket. Sockets are not at all Java-specific;
the term is taken directly from the terminology of general IP
(Internet Protocol) network programming. In Java programs, a Socket object is
simply a wrapper around the low-level sockets that Internet
programmers have been using for years. And the abstraction used by
the Java language is very clean, so socket programming in the Java language is much more
pleasant than it is, for example, in C.</p><p>The most important thing to know about a Socket object is that it contains
(among other things) two Streams. One is for reading data coming in, and the other is for writing data out. That is to say, a Socket has an InputStream and an OutputStream.</p><p>(If these Stream classes are unfamiliar to you, then suffice it to
say that they are objects used for reading and writing data, often as
a stream of bytes. If you don't know about them yet, you
really should. See the <a href="http://java.sun.com/j2se/1.3/docs/api/java/io/package-summary.html ">java.io</a>
package for more information.)</p><br x="7"></font></td></tr></table><TABLE border="0" cellpadding="0" cellspacing="0" width="100%"><TR><TD background="../i/sw-gold.gif"><a border="0" href="index.html" onMouseOver="iOver('topmain'); iOver('bottommain'); self.status=mainblurb; return true;" onMouseOut="iOut('topmain'); iOut('bottommain'); self.status=''; return true;"><img alt="Main menu" border="0" src="../i/main.gif" name="bottommain"></a></TD><TD background="../i/sw-gold.gif"><a border="0" onMouseOver="iOver('topsection'); iOver('bottomsection'); self.status=sectionblurb; return true;" onMouseOut="iOut('topsection'); iOut('bottomsection'); self.status=''; return true;" href="index3.html"><img alt="Section menu" border="0" src="../i/section.gif" name="bottomsection"></a></TD><TD background="../i/sw-gold.gif"><a border="0" onMouseOver="iOver('topfeedback'); iOver('bottomfeedback'); self.status=feedbackblurb; return true;" onMouseOut="iOut('topfeedback'); iOut('bottomfeedback'); self.status=''; return true;" href="j-chat-11-3.html"><img alt="Give feedback on this tutorial" border="0" src="../i/feedback.gif" name="bottomfeedback"></a></TD><TD width="100%" background="../i/sw-gold.gif"><img src="http://www.ibm.com/i/c.gif"></TD><TD background="../i/sw-gold.gif"><a border="0" onMouseOver="iOver('topprevious'); iOver('bottomprevious'); self.status=previousblurb; return true;" onMouseOut="iOut('topprevious'); iOut('bottomprevious'); self.status=''; return true;" href="j-chat-3-2.html"><img alt="Previous" border="0" src="../i/previous.gif" name="bottomprevious"></a></TD><TD background="../i/sw-gold.gif"><a border="0" onMouseOver="iOver('topnext'); iOver('bottomnext'); self.status=nextblurb; return true;" onMouseOut="iOut('topnext'); iOut('bottomnext'); self.status=''; return true;" href="j-chat-3-4.html"><img alt="Next" border="0" src="../i/next.gif" name="bottomnext"></a></TD></TR><TR><TD width="150" height="1" bgcolor="#000000" colspan="6"><IMG alt="" height="1" width="150" src="http://www.ibm.com/i/c.gif"></TD></TR></TABLE><TABLE cellpadding="0" cellspacing="0" border="0"><TR><TD width="182"><TABLE cellpadding="0" cellspacing="0" border="0" width="182"><TR bgcolor="#000000"><TD align="center" width="60" class="mast"><a style="text-decoration: none; color: #ffffff;" class="nav" href="http://www.ibm.com/privacy/"><font face="Arial, Verdana" size="2">Privacy</font></a></TD><TD width="1" bgcolor="#959595"><img alt="" border="0" height="20" width="1" src="http://www.ibm.com/i/c.gif"></TD><TD align="center" width="60" class="mast"><a style="text-decoration: none; color: #ffffff;" class="nav" href="http://www.ibm.com/legal/"><font face="Arial, Verdana" size="2">Legal</font></a></TD><TD width="1" bgcolor="#959595"><img alt="" border="0" height="20" width="1" src="http://www.ibm.com/i/c.gif"></TD><TD align="center" width="60" class="mast"><a style="text-decoration: none; color: #ffffff;" class="nav" href="http://www.ibm.com/contact/"><font face="Arial, Verdana" size="2">Contact</font></a></TD><TD width="1" bgcolor="#959595"><img alt="" border="0" height="21" width="1" src="http://www.ibm.com/i/c.gif"></TD></TR><TR bgcolor="#ffffff"><TD><img alt="" border="0" height="1" width="1" src="http://www.ibm.com/i/c.gif"></TD></TR></TABLE></TD><TD width="100%"><TABLE cellpadding="0" cellspacing="0" border="0" width="100%"><TR height="21" bgcolor="#000000"><TD><img alt="" border="0" height="21" width="1" src="http://www.ibm.com/i/c.gif"></TD></TR><TR bgcolor="#ffffff"><TD><img alt="" border="0" height="1" width="1" src="http://www.ibm.com/i/c.gif"></TD></TR></TABLE></TD></TR></TABLE></body></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 + -