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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 23:31:50 PDT 2000 --><TITLE>Java 2 Platform SE v1.3: java.util Class Hierarchy</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="#EEEEFF" CLASS="NavBarCell1"> <FONT CLASS="NavBarFont1">Class</FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <FONT CLASS="NavBarFont1">Use</FONT> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Tree</B></FONT> </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/text/package-tree.html"><B>PREV</B></A> <A HREF="../../java/util/jar/package-tree.html"><B>NEXT</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../index.html" TARGET="_top"><B>FRAMES</B></A> <A HREF="package-tree.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><CENTER><H2>Hierarchy For Package java.util</H2></CENTER><DL><DT><B>Package Hierarchies: </B><DD><A HREF="../../overview-tree.html">All Packages</A></DL><HR><H2>Class Hierarchy</H2><UL><LI TYPE="circle">class java.lang.<A HREF="../../java/lang/Object.html"><B>Object</B></A><UL><LI TYPE="circle">class java.util.<A HREF="../../java/util/AbstractCollection.html"><B>AbstractCollection</B></A> (implements java.util.<A HREF="../../java/util/Collection.html">Collection</A>)<UL><LI TYPE="circle">class java.util.<A HREF="../../java/util/AbstractList.html"><B>AbstractList</B></A> (implements java.util.<A HREF="../../java/util/List.html">List</A>)<UL><LI TYPE="circle">class java.util.<A HREF="../../java/util/AbstractSequentialList.html"><B>AbstractSequentialList</B></A><UL><LI TYPE="circle">class java.util.<A HREF="../../java/util/LinkedList.html"><B>LinkedList</B></A> (implements java.lang.<A HREF="../../java/lang/Cloneable.html">Cloneable</A>, java.util.<A HREF="../../java/util/List.html">List</A>, java.io.<A HREF="../../java/io/Serializable.html">Serializable</A>)</UL><LI TYPE="circle">class java.util.<A HREF="../../java/util/ArrayList.html"><B>ArrayList</B></A> (implements java.lang.<A HREF="../../java/lang/Cloneable.html">Cloneable</A>, java.util.<A HREF="../../java/util/List.html">List</A>, java.io.<A HREF="../../java/io/Serializable.html">Serializable</A>)<LI TYPE="circle">class java.util.<A HREF="../../java/util/Vector.html"><B>Vector</B></A> (implements java.lang.<A HREF="../../java/lang/Cloneable.html">Cloneable</A>, java.util.<A HREF="../../java/util/List.html">List</A>, java.io.<A HREF="../../java/io/Serializable.html">Serializable</A>)<UL><LI TYPE="circle">class java.util.<A HREF="../../java/util/Stack.html"><B>Stack</B></A></UL></UL><LI TYPE="circle">class java.util.<A HREF="../../java/util/AbstractSet.html"><B>AbstractSet</B></A> (implements java.util.<A HREF="../../java/util/Set.html">Set</A>)<UL><LI TYPE="circle">class java.util.<A HREF="../../java/util/HashSet.html"><B>HashSet</B></A> (implements java.lang.<A HREF="../../java/lang/Cloneable.html">Cloneable</A>, java.io.<A HREF="../../java/io/Serializable.html">Serializable</A>, java.util.<A HREF="../../java/util/Set.html">Set</A>)<LI TYPE="circle">class java.util.<A HREF="../../java/util/TreeSet.html"><B>TreeSet</B></A> (implements java.lang.<A HREF="../../java/lang/Cloneable.html">Cloneable</A>, java.io.<A HREF="../../java/io/Serializable.html">Serializable</A>, java.util.<A HREF="../../java/util/SortedSet.html">SortedSet</A>)</UL></UL><LI TYPE="circle">class java.util.<A HREF="../../java/util/AbstractMap.html"><B>AbstractMap</B></A> (implements java.util.<A HREF="../../java/util/Map.html">Map</A>)<UL><LI TYPE="circle">class java.util.<A HREF="../../java/util/HashMap.html"><B>HashMap</B></A> (implements java.lang.<A HREF="../../java/lang/Cloneable.html">Cloneable</A>, java.util.<A HREF="../../java/util/Map.html">Map</A>, java.io.<A HREF="../../java/io/Serializable.html">Serializable</A>)<LI TYPE="circle">class java.util.<A HREF="../../java/util/TreeMap.html"><B>TreeMap</B></A> (implements java.lang.<A HREF="../../java/lang/Cloneable.html">Cloneable</A>, java.io.<A HREF="../../java/io/Serializable.html">Serializable</A>, java.util.<A HREF="../../java/util/SortedMap.html">SortedMap</A>)<LI TYPE="circle">class java.util.<A HREF="../../java/util/WeakHashMap.html"><B>WeakHashMap</B></A> (implements java.util.<A HREF="../../java/util/Map.html">Map</A>)</UL><LI TYPE="circle">class java.util.<A HREF="../../java/util/Arrays.html"><B>Arrays</B></A><LI TYPE="circle">class java.util.<A HREF="../../java/util/BitSet.html"><B>BitSet</B></A> (implements java.lang.<A HREF="../../java/lang/Cloneable.html">Cloneable</A>, java.io.<A HREF="../../java/io/Serializable.html">Serializable</A>)<LI TYPE="circle">class java.util.<A HREF="../../java/util/Calendar.html"><B>Calendar</B></A> (implements java.lang.<A HREF="../../java/lang/Cloneable.html">Cloneable</A>, java.io.<A HREF="../../java/io/Serializable.html">Serializable</A>)<UL><LI TYPE="circle">class java.util.<A HREF="../../java/util/GregorianCalendar.html"><B>GregorianCalendar</B></A></UL><LI TYPE="circle">class java.util.<A HREF="../../java/util/Collections.html"><B>Collections</B></A><LI TYPE="circle">class java.util.<A HREF="../../java/util/Date.html"><B>Date</B></A> (implements java.lang.<A HREF="../../java/lang/Cloneable.html">Cloneable</A>, java.lang.<A HREF="../../java/lang/Comparable.html">Comparable</A>, java.io.<A HREF="../../java/io/Serializable.html">Serializable</A>)<LI TYPE="circle">class java.util.<A HREF="../../java/util/Dictionary.html"><B>Dictionary</B></A><UL><LI TYPE="circle">class java.util.<A HREF="../../java/util/Hashtable.html"><B>Hashtable</B></A> (implements java.lang.<A HREF="../../java/lang/Cloneable.html">Cloneable</A>, java.util.<A HREF="../../java/util/Map.html">Map</A>, java.io.<A HREF="../../java/io/Serializable.html">Serializable</A>)<UL><LI TYPE="circle">class java.util.<A HREF="../../java/util/Properties.html"><B>Properties</B></A></UL></UL><LI TYPE="circle">class java.util.<A HREF="../../java/util/EventObject.html"><B>EventObject</B></A> (implements java.io.<A HREF="../../java/io/Serializable.html">Serializable</A>)<LI TYPE="circle">class java.util.<A HREF="../../java/util/Locale.html"><B>Locale</B></A> (implements java.lang.<A HREF="../../java/lang/Cloneable.html">Cloneable</A>, java.io.<A HREF="../../java/io/Serializable.html">Serializable</A>)<LI TYPE="circle">class java.util.<A HREF="../../java/util/Observable.html"><B>Observable</B></A><LI TYPE="circle">class java.security.<A HREF="../../java/security/Permission.html"><B>Permission</B></A> (implements java.security.<A HREF="../../java/security/Guard.html">Guard</A>, java.io.<A HREF="../../java/io/Serializable.html">Serializable</A>)<UL><LI TYPE="circle">class java.security.<A HREF="../../java/security/BasicPermission.html"><B>BasicPermission</B></A> (implements java.io.<A HREF="../../java/io/Serializable.html">Serializable</A>)<UL><LI TYPE="circle">class java.util.<A HREF="../../java/util/PropertyPermission.html"><B>PropertyPermission</B></A></UL></UL><LI TYPE="circle">class java.util.<A HREF="../../java/util/Random.html"><B>Random</B></A> (implements java.io.<A HREF="../../java/io/Serializable.html">Serializable</A>)<LI TYPE="circle">class java.util.<A HREF="../../java/util/ResourceBundle.html"><B>ResourceBundle</B></A><UL><LI TYPE="circle">class java.util.<A HREF="../../java/util/ListResourceBundle.html"><B>ListResourceBundle</B></A><LI TYPE="circle">class java.util.<A HREF="../../java/util/PropertyResourceBundle.html"><B>PropertyResourceBundle</B></A></UL><LI TYPE="circle">class java.util.<A HREF="../../java/util/StringTokenizer.html"><B>StringTokenizer</B></A> (implements java.util.<A HREF="../../java/util/Enumeration.html">Enumeration</A>)<LI TYPE="circle">class java.lang.<A HREF="../../java/lang/Throwable.html"><B>Throwable</B></A> (implements java.io.<A HREF="../../java/io/Serializable.html">Serializable</A>)<UL><LI TYPE="circle">class java.lang.<A HREF="../../java/lang/Exception.html"><B>Exception</B></A><UL><LI TYPE="circle">class java.lang.<A HREF="../../java/lang/RuntimeException.html"><B>RuntimeException</B></A><UL><LI TYPE="circle">class java.util.<A HREF="../../java/util/ConcurrentModificationException.html"><B>ConcurrentModificationException</B></A><LI TYPE="circle">class java.util.<A HREF="../../java/util/EmptyStackException.html"><B>EmptyStackException</B></A><LI TYPE="circle">class java.util.<A HREF="../../java/util/MissingResourceException.html"><B>MissingResourceException</B></A><LI TYPE="circle">class java.util.<A HREF="../../java/util/NoSuchElementException.html"><B>NoSuchElementException</B></A></UL><LI TYPE="circle">class java.util.<A HREF="../../java/util/TooManyListenersException.html"><B>TooManyListenersException</B></A></UL></UL><LI TYPE="circle">class java.util.<A HREF="../../java/util/Timer.html"><B>Timer</B></A><LI TYPE="circle">class java.util.<A HREF="../../java/util/TimerTask.html"><B>TimerTask</B></A> (implements java.lang.<A HREF="../../java/lang/Runnable.html">Runnable</A>)<LI TYPE="circle">class java.util.<A HREF="../../java/util/TimeZone.html"><B>TimeZone</B></A> (implements java.lang.<A HREF="../../java/lang/Cloneable.html">Cloneable</A>, java.io.<A HREF="../../java/io/Serializable.html">Serializable</A>)<UL><LI TYPE="circle">class java.util.<A HREF="../../java/util/SimpleTimeZone.html"><B>SimpleTimeZone</B></A></UL></UL></UL><H2>Interface Hierarchy</H2><UL><LI TYPE="circle">interface java.util.<A HREF="../../java/util/Collection.html"><B>Collection</B></A><UL><LI TYPE="circle">interface java.util.<A HREF="../../java/util/List.html"><B>List</B></A><LI TYPE="circle">interface java.util.<A HREF="../../java/util/Set.html"><B>Set</B></A><UL><LI TYPE="circle">interface java.util.<A HREF="../../java/util/SortedSet.html"><B>SortedSet</B></A></UL></UL><LI TYPE="circle">interface java.util.<A HREF="../../java/util/Comparator.html"><B>Comparator</B></A><LI TYPE="circle">interface java.util.<A HREF="../../java/util/Enumeration.html"><B>Enumeration</B></A><LI TYPE="circle">interface java.util.<A HREF="../../java/util/EventListener.html"><B>EventListener</B></A><LI TYPE="circle">interface java.util.<A HREF="../../java/util/Iterator.html"><B>Iterator</B></A><UL><LI TYPE="circle">interface java.util.<A HREF="../../java/util/ListIterator.html"><B>ListIterator</B></A></UL><LI TYPE="circle">interface java.util.<A HREF="../../java/util/Map.html"><B>Map</B></A><UL><LI TYPE="circle">interface java.util.<A HREF="../../java/util/SortedMap.html"><B>SortedMap</B></A></UL><LI TYPE="circle">interface java.util.<A HREF="../../java/util/Map.Entry.html"><B>Map.Entry</B></A><LI TYPE="circle">interface java.util.<A HREF="../../java/util/Observer.html"><B>Observer</B></A></UL><HR><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_bottom"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_bottom_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="#EEEEFF" CLASS="NavBarCell1"> <FONT CLASS="NavBarFont1">Class</FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <FONT CLASS="NavBarFont1">Use</FONT> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Tree</B></FONT> </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 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Ed. v1.3</b></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../java/text/package-tree.html"><B>PREV</B></A> <A HREF="../../java/util/jar/package-tree.html"><B>NEXT</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../index.html" TARGET="_top"><B>FRAMES</B></A> <A HREF="package-tree.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><font size="-1"><a href="http://java.sun.com/cgi-bin/bugreport.cgi">Submit a bug or feature</a><br>For further API reference and developer documentation, see <a href="http://java.sun.com/products/jdk/1.3/devdocs-vs-specs.html">Java 2 SDK SE Developer Documentation</a>. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples. <p>Java, Java 2D, and JDBC are trademarks or registered trademarks of Sun Microsystems, Inc. in the US and other countries.<br>Copyright 1993-2000 Sun Microsystems, Inc. 901 San Antonio Road<br>Palo Alto, California, 94303, U.S.A. All Rights Reserved.</font></BODY></HTML>
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