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<TD><B>Methods inherited from interface structure.<A HREF="../structure/Structure.html">Structure</A></B></TD>
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<TD><CODE><A HREF="../structure/Structure.html#add(java.lang.Object)">add</A>, <A HREF="../structure/Structure.html#clear()">clear</A>, <A HREF="../structure/Structure.html#iterator()">iterator</A>, <A HREF="../structure/Structure.html#remove(java.lang.Object)">remove</A>, <A HREF="../structure/Structure.html#size()">size</A></CODE></TD>
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<A NAME="AbstractStructure()"><!-- --></A><H3>
AbstractStructure</H3>
<PRE>
public <B>AbstractStructure</B>()</PRE>
<DL>
<DD>The default constructor.  Initializes any internal variables.</DL>

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<A NAME="isEmpty()"><!-- --></A><H3>
isEmpty</H3>
<PRE>
public boolean <B>isEmpty</B>()</PRE>
<DL>
<DD>Determine if there are elements within the structure.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../structure/Structure.html#isEmpty()">isEmpty</A></CODE> in interface <CODE><A HREF="../structure/Structure.html">Structure</A></CODE></DL>
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<DD><DL>
<DT><B>Postcondition:</B><DD>return true iff the structure is empty<DT><B>Returns:</B><DD>true if the structure is empty; false otherwise</DL>
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<A NAME="elements()"><!-- --></A><H3>
elements</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/util/Enumeration.html">Enumeration</A> <B>elements</B>()</PRE>
<DL>
<DD>Return an enumeration associated with this structure.
 This implementation returns an AbstractIterator which supports
 both enumeration at iterator techniques.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../structure/Structure.html#elements()">elements</A></CODE> in interface <CODE><A HREF="../structure/Structure.html">Structure</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Precondition:</B><DD>this implementation assumes the structure returns an
      AbstractIterator, which may then be used for generating the
      Enumeration.<DT><B>Postcondition:</B><DD>return an enumeration for traversing the struture;
       all <code>structure</code> package implementations return
       an <code>AbstractIterator</code><DT><B>Returns:</B><DD>a Enumeration for traversing the structure<DT><B>See Also: </B><DD><A HREF="../structure/AbstractIterator.html"><CODE>AbstractIterator</CODE></A>, 
<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/util/Iterator.html"><CODE>Iterator</CODE></A>, 
<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/util/Enumeration.html"><CODE>Enumeration</CODE></A></DL>
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<A NAME="contains(java.lang.Object)"><!-- --></A><H3>
contains</H3>
<PRE>
public boolean <B>contains</B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A>&nbsp;value)</PRE>
<DL>
<DD>Determines if the structure contains a value.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../structure/Structure.html#contains(java.lang.Object)">contains</A></CODE> in interface <CODE><A HREF="../structure/Structure.html">Structure</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>value</CODE> - non-null value to be found within structure<DT><B>Precondition:</B><DD>value is non-null<DT><B>Postcondition:</B><DD>returns true iff value.equals some value in structure<DT><B>Returns:</B><DD>true when some value equals value</DL>
</DD>
</DL>
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<A NAME="hashCode()"><!-- --></A><H3>
hashCode</H3>
<PRE>
public int <B>hashCode</B>()</PRE>
<DL>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html#hashCode()">hashCode</A></CODE> in class <CODE><A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Postcondition:</B><DD>generate a hashcode for the structure: sum of
 all the hash codes of elements</DL>
</DD>
</DL>
<HR>

<A NAME="values()"><!-- --></A><H3>
values</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/util/Collection.html">Collection</A> <B>values</B>()</PRE>
<DL>
<DD>Returns a java.util.Collection wrapping this structure.
 This particular implementation returns a <code>StructCollection</code>
 whose methods may not provide the most efficent implementations
 of non-<code>Structure</code> <code>Collection</code> methods.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../structure/Structure.html#values()">values</A></CODE> in interface <CODE><A HREF="../structure/Structure.html">Structure</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Postcondition:</B><DD>returns a <code>Collection</code> that may be used with
       Java's Collection Framework<DT><B>Returns:</B><DD>a Collection that is equivalent to this structure<DT><B>See Also: </B><DD><A HREF="../structure/StructCollection.html"><CODE>StructCollection</CODE></A>, 
<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/util/Collection.html"><CODE>Collection</CODE></A></DL>
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