chainedhashtable.html

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<A NAME="data"><!-- --></A><H3>
data</H3>
<PRE>
protected <A HREF="../structure/List.html">List</A>[] <B>data</B></PRE>
<DL>
<DD>The array of chains used to store values.</DL>
<HR>

<A NAME="count"><!-- --></A><H3>
count</H3>
<PRE>
protected int <B>count</B></PRE>
<DL>
<DD>The number of key-value pairs stored within the table.</DL>
<HR>

<A NAME="capacity"><!-- --></A><H3>
capacity</H3>
<PRE>
protected int <B>capacity</B></PRE>
<DL>
<DD>The length of the table.</DL>

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<A NAME="ChainedHashtable(int)"><!-- --></A><H3>
ChainedHashtable</H3>
<PRE>
public <B>ChainedHashtable</B>(int&nbsp;size)</PRE>
<DL>
<DD>Constructs a hashtable with capacity for at size elements
 before chaining is absolutely required.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>size</CODE> - The number of entries initially allocated.</DL>
</DD>
</DL>
<HR>

<A NAME="ChainedHashtable()"><!-- --></A><H3>
ChainedHashtable</H3>
<PRE>
public <B>ChainedHashtable</B>()</PRE>
<DL>
<DD>Constructs a reasonably large hashtable.</DL>

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<A NAME="clear()"><!-- --></A><H3>
clear</H3>
<PRE>
public void <B>clear</B>()</PRE>
<DL>
<DD>Removes the values from the hashtable.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../structure/Map.html#clear()">clear</A></CODE> in interface <CODE><A HREF="../structure/Map.html">Map</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Postcondition:</B><DD>removes all the elements from the ChainedHashtable</DL>
</DD>
</DL>
<HR>

<A NAME="size()"><!-- --></A><H3>
size</H3>
<PRE>
public int <B>size</B>()</PRE>
<DL>
<DD>Computes the number of elements stored within the hashtable.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../structure/Map.html#size()">size</A></CODE> in interface <CODE><A HREF="../structure/Map.html">Map</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Postcondition:</B><DD>returns number of elements in hash table<DT><B>Returns:</B><DD>The number of elements within the hash table.</DL>
</DD>
</DL>
<HR>

<A NAME="isEmpty()"><!-- --></A><H3>
isEmpty</H3>
<PRE>
public boolean <B>isEmpty</B>()</PRE>
<DL>
<DD>Returns true if no elements are stored within the table.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../structure/Map.html#isEmpty()">isEmpty</A></CODE> in interface <CODE><A HREF="../structure/Map.html">Map</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Postcondition:</B><DD>returns true iff hash table has 0 elements<DT><B>Returns:</B><DD>True iff size() == 0.</DL>
</DD>
</DL>
<HR>

<A NAME="locate(java.lang.Object)"><!-- --></A><H3>
locate</H3>
<PRE>
protected <A HREF="../structure/List.html">List</A> <B>locate</B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A>&nbsp;key)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="containsValue(java.lang.Object)"><!-- --></A><H3>
containsValue</H3>
<PRE>
public boolean <B>containsValue</B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A>&nbsp;value)</PRE>
<DL>
<DD>Returns true if a specific value appears within the table.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../structure/Map.html#containsValue(java.lang.Object)">containsValue</A></CODE> in interface <CODE><A HREF="../structure/Map.html">Map</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>value</CODE> - The value sought.<DT><B>Precondition:</B><DD>value is non-null Object<DT><B>Postcondition:</B><DD>returns true iff hash table contains value<DT><B>Returns:</B><DD>True iff the value appears within the table.</DL>
</DD>
</DL>
<HR>

<A NAME="containsKey(java.lang.Object)"><!-- --></A><H3>
containsKey</H3>
<PRE>
public boolean <B>containsKey</B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A>&nbsp;key)</PRE>
<DL>
<DD>Returns true iff a specific key appears within the table.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../structure/Map.html#containsKey(java.lang.Object)">containsKey</A></CODE> in interface <CODE><A HREF="../structure/Map.html">Map</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>key</CODE> - The key sought.<DT><B>Precondition:</B><DD>value is non-null key<DT><B>Postcondition:</B><DD>returns true if key appears in hash table<DT><B>Returns:</B><DD>True iff the key sought appears within table.</DL>
</DD>
</DL>
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<A NAME="iterator()"><!-- --></A><H3>
iterator</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/util/Iterator.html">Iterator</A> <B>iterator</B>()</PRE>
<DL>
<DD>Returns an iterator that traverses over the values of the
 hashtable.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Postcondition:</B><DD>returns iterator to traverse hash table<DT><B>Returns:</B><DD>A value iterator, over the values of the table.</DL>
</DD>
</DL>
<HR>

<A NAME="keySet()"><!-- --></A><H3>
keySet</H3>
<PRE>
public <A HREF="../structure/Set.html">Set</A> <B>keySet</B>()</PRE>
<DL>
<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../structure/Map.html#keySet()">keySet</A></CODE> in interface <CODE><A HREF="../structure/Map.html">Map</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="entrySet()"><!-- --></A><H3>
entrySet</H3>
<PRE>
public <A HREF="../structure/Set.html">Set</A> <B>entrySet</B>()</PRE>
<DL>
<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../structure/Map.html#entrySet()">entrySet</A></CODE> in interface <CODE><A HREF="../structure/Map.html">Map</A></CODE></DL>
</DD>
</DL>
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<A NAME="values()"><!-- --></A><H3>
values</H3>
<PRE>
public <A HREF="../structure/Structure.html">Structure</A> <B>values</B>()</PRE>
<DL>
<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../structure/Map.html#values()">values</A></CODE> in interface <CODE><A HREF="../structure/Map.html">Map</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="get(java.lang.Object)"><!-- --></A><H3>
get</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A> <B>get</B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A>&nbsp;key)</PRE>
<DL>
<DD>Get the value associated with a key.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../structure/Map.html#get(java.lang.Object)">get</A></CODE> in interface <CODE><A HREF="../structure/Map.html">Map</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>key</CODE> - The key used to find the desired value.<DT><B>Precondition:</B><DD>key is non-null Object<DT><B>Postcondition:</B><DD>returns value associated with key, or null<DT><B>Returns:</B><DD>The value associated with the desired key.</DL>
</DD>
</DL>
<HR>

<A NAME="keys()"><!-- --></A><H3>
keys</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/util/Iterator.html">Iterator</A> <B>keys</B>()</PRE>
<DL>
<DD>Get an iterator over the keys of the hashtable.<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Postcondition:</B><DD>returns iterator to traverse the keys of hash table<DT><B>Returns:</B><DD>An iterator over the key values appearing within table.</DL>
</DD>
</DL>
<HR>

<A NAME="put(java.lang.Object, java.lang.Object)"><!-- --></A><H3>
put</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A> <B>put</B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A>&nbsp;key,
                  <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A>&nbsp;value)</PRE>
<DL>
<DD>Place a key-value pair within the table.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../structure/Map.html#put(java.lang.Object, java.lang.Object)">put</A></CODE> in interface <CODE><A HREF="../structure/Map.html">Map</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>key</CODE> - The key to be added to table.<DD><CODE>value</CODE> - The value associated with key.<DT><B>Precondition:</B><DD>key is non-null object<DT><B>Postcondition:</B><DD>key-value pair is added to hash table<DT><B>Returns:</B><DD>The old value associated with key if previously present.</DL>
</DD>
</DL>
<HR>

<A NAME="remove(java.lang.Object)"><!-- --></A><H3>
remove</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A> <B>remove</B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A>&nbsp;key)</PRE>
<DL>
<DD>Remove a key-value pair from the table.<DD><DL>
<DT><B>Specified by: </B><DD><CODE><A HREF="../structure/Map.html#remove(java.lang.Object)">remove</A></CODE> in interface <CODE><A HREF="../structure/Map.html">Map</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>key</CODE> - The key of the key-value pair to be removed.<DT><B>Precondition:</B><DD>key is non-null object<DT><B>Postcondition:</B><DD>removes key-value pair associated with key<DT><B>Returns:</B><DD>The value associated with the removed key.</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>Generate a string representation of the chained hash table.<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 a string representation of hash table<DT><B>Returns:</B><DD>The string representing the table.</DL>
</DD>
</DL>
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