edge.html

学习JAVA的很好的JAVA包和文档包

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<A NAME="vLabel"><!-- --></A><H3>
vLabel</H3>
<PRE>
protected <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A>[] <B>vLabel</B></PRE>
<DL>
<DD>Two element array of vertex labels.
 When necessary, first element is source.</DL>
<HR>

<A NAME="label"><!-- --></A><H3>
label</H3>
<PRE>
protected <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A> <B>label</B></PRE>
<DL>
<DD>Label associated with edge.  May be null.</DL>
<HR>

<A NAME="visited"><!-- --></A><H3>
visited</H3>
<PRE>
protected boolean <B>visited</B></PRE>
<DL>
<DD>Whether or not this edge has been visited.</DL>
<HR>

<A NAME="directed"><!-- --></A><H3>
directed</H3>
<PRE>
protected boolean <B>directed</B></PRE>
<DL>
<DD>Whether or not this edge is directed.</DL>

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<A NAME="Edge(java.lang.Object, java.lang.Object, java.lang.Object, boolean)"><!-- --></A><H3>
Edge</H3>
<PRE>
public <B>Edge</B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A>&nbsp;vtx1,
            <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A>&nbsp;vtx2,
            <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A>&nbsp;label,
            boolean&nbsp;directed)</PRE>
<DL>
<DD>Construct a (possibly directed) edge between two labeled
 vertices.  When edge is directed, vtx1 specifies source.
 When undirected, order of vertices is unimportant.  Label
 on edge is any type, and may be null.
 Edge is initially unvisited.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>vtx1</CODE> - The label of a vertex (source if directed).<DD><CODE>vtx2</CODE> - The label of another vertex (destination if directed).<DD><CODE>label</CODE> - The label associated with the edge.<DD><CODE>directed</CODE> - True iff this edge is directed.</DL>
</DD>
</DL>

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<A NAME="here()"><!-- --></A><H3>
here</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A> <B>here</B>()</PRE>
<DL>
<DD>Returns the first vertex (or source if directed).<DD><DL>
<DT><B>Postcondition:</B><DD>returns first node in edge<DT><B>Returns:</B><DD>A vertex; if directed, the source.</DL>
</DD>
</DL>
<HR>

<A NAME="there()"><!-- --></A><H3>
there</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A> <B>there</B>()</PRE>
<DL>
<DD>Returns the second vertex (or source if undirected).<DD><DL>
<DT><B>Postcondition:</B><DD>returns second node in edge<DT><B>Returns:</B><DD>A vertex; if directed, the destination.</DL>
</DD>
</DL>
<HR>

<A NAME="setLabel(java.lang.Object)"><!-- --></A><H3>
setLabel</H3>
<PRE>
public void <B>setLabel</B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A>&nbsp;label)</PRE>
<DL>
<DD>Sets the label associated with the edge.  May be null.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>label</CODE> - Any object to label edge, or null.<DT><B>Postcondition:</B><DD>sets label of this edge to label</DL>
</DD>
</DL>
<HR>

<A NAME="label()"><!-- --></A><H3>
label</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A> <B>label</B>()</PRE>
<DL>
<DD>Get label associated with edge.<DD><DL>
<DT><B>Postcondition:</B><DD>returns label associated with this edge<DT><B>Returns:</B><DD>The label found on the edge.</DL>
</DD>
</DL>
<HR>

<A NAME="visit()"><!-- --></A><H3>
visit</H3>
<PRE>
public boolean <B>visit</B>()</PRE>
<DL>
<DD>Test and set visited flag on vertex.<DD><DL>
<DT><B>Postcondition:</B><DD>visits edge, returns whether previously visited<DT><B>Returns:</B><DD>True iff edge was visited previously.</DL>
</DD>
</DL>
<HR>

<A NAME="isVisited()"><!-- --></A><H3>
isVisited</H3>
<PRE>
public boolean <B>isVisited</B>()</PRE>
<DL>
<DD>Check to see if edge has been visited.<DD><DL>
<DT><B>Postcondition:</B><DD>returns true iff edge has been visited<DT><B>Returns:</B><DD>True iff the edge has been visited.</DL>
</DD>
</DL>
<HR>

<A NAME="isDirected()"><!-- --></A><H3>
isDirected</H3>
<PRE>
public boolean <B>isDirected</B>()</PRE>
<DL>
<DD>Check to see if edge is directed.<DD><DL>
<DT><B>Postcondition:</B><DD>returns true iff edge is directed<DT><B>Returns:</B><DD>True iff the edge has been visited.</DL>
</DD>
</DL>
<HR>

<A NAME="reset()"><!-- --></A><H3>
reset</H3>
<PRE>
public void <B>reset</B>()</PRE>
<DL>
<DD>Clear the visited flag associated with edge.<DD><DL>
<DT><B>Postcondition:</B><DD>resets edge's visited flag to initial state</DL>
</DD>
</DL>
<HR>

<A NAME="hashCode()"><!-- --></A><H3>
hashCode</H3>
<PRE>
public int <B>hashCode</B>()</PRE>
<DL>
<DD>Returns hashcode associated with edge.<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>returns suitable hashcode<DT><B>Returns:</B><DD>An integer code suitable for hashing.</DL>
</DD>
</DL>
<HR>

<A NAME="equals(java.lang.Object)"><!-- --></A><H3>
equals</H3>
<PRE>
public boolean <B>equals</B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A>&nbsp;o)</PRE>
<DL>
<DD>Test for equality of edges.  Undirected edges are equal if
 they connect the same vertices.  Directed edges must have same
 direction.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html#equals(java.lang.Object)">equals</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>Parameters:</B><DD><CODE>o</CODE> - The other edge.<DT><B>Postcondition:</B><DD>returns true iff edges connect same vertices<DT><B>Returns:</B><DD>True iff this edge is equal to other edge.</DL>
</DD>
</DL>
<HR>

<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/String.html">String</A> <B>toString</B>()</PRE>
<DL>
<DD>Construct a string representation of edge.<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html#toString()">toString</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>returns string representation of edge<DT><B>Returns:</B><DD>String representing edge.</DL>
</DD>
</DL>
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