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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Frameset//EN""http://www.w3.org/TR/REC-html40/frameset.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Thu Apr 27 23:35:38 PDT 2000 --><TITLE>Java 2 Platform SE v1.3: Class URLStreamHandler</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../../stylesheet.css" TITLE="Style"></HEAD><BODY BGCOLOR="white"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/URLStreamHandler.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../index-files/index-1.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM><b>Java<sup><font size=-2>TM</font></sup> 2 Platform<br>Std. Ed. v1.3</b></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../java/net/URLEncoder.html"><B>PREV CLASS</B></A> NEXT CLASS</FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../index.html" TARGET="_top"><B>FRAMES</B></A> <A HREF="URLStreamHandler.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: INNER | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">java.net</FONT><BR>Class URLStreamHandler</H2><PRE><A HREF="../../java/lang/Object.html">java.lang.Object</A> | +--<B>java.net.URLStreamHandler</B></PRE><HR><DL><DT>public abstract class <B>URLStreamHandler</B><DT>extends <A HREF="../../java/lang/Object.html">Object</A></DL><P>The abstract class <code>URLStreamHandler</code> is the common superclass for all stream protocol handlers. A stream protocol handler knows how to make a connection for a particular protocol type, such as <code>http</code>, <code>ftp</code>, or <code>gopher</code>. <p> In most cases, an instance of a <code>URLStreamHandler</code> subclass is not created directly by an application. Rather, the first time a protocol name is encountered when constructing a <code>URL</code>, the appropriate stream protocol handler is automatically loaded.<P><DL><DT><B>Since: </B><DD>JDK1.0</DD><DT><B>See Also: </B><DD><A HREF="../../java/net/URL.html#URL(java.lang.String, java.lang.String, int, java.lang.String)"><CODE>URL.URL(java.lang.String, java.lang.String, int, java.lang.String)</CODE></A></DL><HR><P><!-- ======== INNER CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../java/net/URLStreamHandler.html#URLStreamHandler()">URLStreamHandler</A></B>()</CODE><BR> </TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Method Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/net/URLStreamHandler.html#equals(java.net.URL, java.net.URL)">equals</A></B>(<A HREF="../../java/net/URL.html">URL</A> u1, <A HREF="../../java/net/URL.html">URL</A> u2)</CODE><BR> Provides the default equals calculation.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected int</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/net/URLStreamHandler.html#getDefaultPort()">getDefaultPort</A></B>()</CODE><BR> Returns the default port for a URL parsed by this handler.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected <A HREF="../../java/net/InetAddress.html">InetAddress</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../java/net/URLStreamHandler.html#getHostAddress(java.net.URL)">getHostAddress</A></B>(<A HREF="../../java/net/URL.html">URL</A> u)</CODE><BR> Get the IP address of our host.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected int</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/net/URLStreamHandler.html#hashCode(java.net.URL)">hashCode</A></B>(<A HREF="../../java/net/URL.html">URL</A> u)</CODE><BR> Provides the default hash calculation.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/net/URLStreamHandler.html#hostsEqual(java.net.URL, java.net.URL)">hostsEqual</A></B>(<A HREF="../../java/net/URL.html">URL</A> u1, <A HREF="../../java/net/URL.html">URL</A> u2)</CODE><BR> Compares the host components of two URLs.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected abstract <A HREF="../../java/net/URLConnection.html">URLConnection</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../java/net/URLStreamHandler.html#openConnection(java.net.URL)">openConnection</A></B>(<A HREF="../../java/net/URL.html">URL</A> u)</CODE><BR> Opens a connection to the object referenced by the <code>URL</code> argument.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected void</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/net/URLStreamHandler.html#parseURL(java.net.URL, java.lang.String, int, int)">parseURL</A></B>(<A HREF="../../java/net/URL.html">URL</A> u, <A HREF="../../java/lang/String.html">String</A> spec, int start, int limit)</CODE><BR> Parses the string representation of a <code>URL</code> into a <code>URL</code> object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/net/URLStreamHandler.html#sameFile(java.net.URL, java.net.URL)">sameFile</A></B>(<A HREF="../../java/net/URL.html">URL</A> u1, <A HREF="../../java/net/URL.html">URL</A> u2)</CODE><BR> Compare two urls to see whether they refer to the same file, i.e., having the same protocol, host, port, and path.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected void</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/net/URLStreamHandler.html#setURL(java.net.URL, java.lang.String, java.lang.String, int, java.lang.String, java.lang.String)">setURL</A></B>(<A HREF="../../java/net/URL.html">URL</A> u, <A HREF="../../java/lang/String.html">String</A> protocol, <A HREF="../../java/lang/String.html">String</A> host, int port, <A HREF="../../java/lang/String.html">String</A> file, <A HREF="../../java/lang/String.html">String</A> ref)</CODE><BR> <B>Deprecated.</B> <I>Use setURL(URL, String, String, int, String, String, String, String);</I></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected void</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/net/URLStreamHandler.html#setURL(java.net.URL, java.lang.String, java.lang.String, int, java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String)">setURL</A></B>(<A HREF="../../java/net/URL.html">URL</A> u, <A HREF="../../java/lang/String.html">String</A> protocol, <A HREF="../../java/lang/String.html">String</A> host, int port, <A HREF="../../java/lang/String.html">String</A> authority, <A HREF="../../java/lang/String.html">String</A> userInfo, <A HREF="../../java/lang/String.html">String</A> path, <A HREF="../../java/lang/String.html">String</A> query, <A HREF="../../java/lang/String.html">String</A> ref)</CODE><BR> Sets the fields of the <code>URL</code> argument to the indicated values.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected <A HREF="../../java/lang/String.html">String</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../java/net/URLStreamHandler.html#toExternalForm(java.net.URL)">toExternalForm</A></B>(<A HREF="../../java/net/URL.html">URL</A> u)</CODE><BR> Converts a <code>URL</code> of a specific protocol to a <code>String</code>.</TD></TR></TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from class java.lang.<A HREF="../../java/lang/Object.html">Object</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../java/lang/Object.html#clone()">clone</A>, <A HREF="../../java/lang/Object.html#equals(java.lang.Object)">equals</A>, <A HREF="../../java/lang/Object.html#finalize()">finalize</A>, <A HREF="../../java/lang/Object.html#getClass()">getClass</A>, <A HREF="../../java/lang/Object.html#hashCode()">hashCode</A>, <A HREF="../../java/lang/Object.html#notify()">notify</A>, <A HREF="../../java/lang/Object.html#notifyAll()">notifyAll</A>, <A HREF="../../java/lang/Object.html#toString()">toString</A>, <A HREF="../../java/lang/Object.html#wait()">wait</A>, <A HREF="../../java/lang/Object.html#wait(long)">wait</A>, <A HREF="../../java/lang/Object.html#wait(long, int)">wait</A></CODE></TD></TR></TABLE> <P><!-- ============ FIELD DETAIL =========== --><!-- ========= CONSTRUCTOR DETAIL ======== --><A NAME="constructor_detail"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=1><FONT SIZE="+2"><B>Constructor 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