ch11.htm

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  private static synchronized void initializeTable(int
rows,String results[][]) {<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int i,j;<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;StateEntry newState;<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// Create the state array...
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;states = new StateEntry[rows/2];
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// Go through each row<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;for (i = j = 0; i &lt; rows;
i+=2,++j) {<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;newState
= createStateEntry(i,results);<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// Now add
to state array...<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;states[j]
= newState;<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;} // end for<BR>
&nbsp;&nbsp;}<BR>
<BR>
&nbsp;&nbsp;// Update just parts of the table...<BR>
&nbsp;&nbsp;private void partialUpdate(int rows,String results[][])
{<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int i,j;<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;StateEntry newState;<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// Kick out if rows is not
a multiple of 2<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if ((rows % 2) != 0) {<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;System.out.println(&quot;Data
not formatted right. Rejected.&quot;);<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return;
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// Go through each row<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;for (i = j = 0; i &lt; rows;
i+=2,++j) {<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// Create
new state table...<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;newState
= createStateEntry(i,results);<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// Now update
state array...<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;stateUpdate(newState);
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;} // end for<BR>
&nbsp;&nbsp;}<BR>
<BR>
&nbsp;&nbsp;// Take index into results table and get a StateEntry
<BR>
&nbsp;&nbsp;// object from it...<BR>
private static StateEntry createStateEntry(int index,String results[][])
{<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Candidate newChallenger;<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Candidate newIncumbent;<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;String stateName;<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;double precincts = 0.0;<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int electoral = 0;<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int candElectoral = 0;<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int IncumbentVotes = 0;<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int ChallengerVotes = 0;<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int i = index;<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;String s;<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// First
row is Challenger. Get his and state info...<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;s = results[i][1];
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;stateName
= s.trim();<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// Get precinct,
electoral,votes...<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;try {<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;s
= results[i][2];<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ChallengerVotes
= Integer.valueOf(<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;s.trim()).intValue();
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;s
= results[i][3];<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;precincts
= Double.valueOf(s.trim()).doubleValue();<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;s
= results[i][4];<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;electoral
= Math.abs(Integer.valueOf(s.trim()).intValue());<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;candElectoral
= Integer.valueOf(s.trim()).intValue();<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if
(candElectoral &lt; 0)<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;candElectoral
= 0;<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;catch (NumberFormatException
e) {<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;System.out.println(&quot;Format
error: &quot; + e.getMessage());<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;s = results[i][0];
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;newChallenger
= new Candidate(s.trim(),<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;candElectoral,
ChallengerVotes);<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// Now get
Incumbent info...<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;++i;<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;try {<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;s
= results[i][2];<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;IncumbentVotes
= Integer.valueOf(s.trim()).intValue();<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;s
= results[i][4];<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;candElectoral
= Integer.valueOf(s.trim()).intValue();<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if
(candElectoral &lt; 0)<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;candElectoral
= 0;<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;catch (NumberFormatException
e) {<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;System.out.println(&quot;Format
error: &quot; + e.getMessage());<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;s = results[i][0];
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;newIncumbent
= new Candidate(s.trim(),<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;candElectoral,IncumbentVotes);
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// Return
state entry field...<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return new
StateEntry(stateName,precincts,<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;electoral,(IncumbentVotes
+ ChallengerVotes),<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;newIncumbent,
newChallenger);<BR>
&nbsp;&nbsp;}<BR>
<BR>
&nbsp;&nbsp;// Get table of state listings.&nbsp;&nbsp;This is
a copy of the<BR>
&nbsp;&nbsp;// state entry TABLE, but not the individual listings.&nbsp;&nbsp;This
<BR>
&nbsp;&nbsp;// solves synchronization problems.&nbsp;&nbsp;The
user of the table<BR>
&nbsp;&nbsp;// will get the references to the states but does
not actually<BR>
&nbsp;&nbsp;// have references to the actual keys used by the
ElectionTable<BR>
&nbsp;&nbsp;// class.<BR>
&nbsp;&nbsp;public synchronized StateEntry[] getStates() {<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (states == null)<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return
states;<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;StateEntry tempStates[] =
new StateEntry[states.length];<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;for (int i = 0; i &lt; states.length;
++i)<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;tempStates[i]
= states[i];<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return tempStates;<BR>
&nbsp;&nbsp;}<BR>
<BR>
&nbsp;&nbsp;// Get candidate total information...<BR>
&nbsp;&nbsp;public synchronized Candidate getIncumbent() {<BR>
&nbsp;&nbsp;&nbsp;return Incumbent;<BR>
&nbsp;&nbsp;}<BR>
&nbsp;&nbsp;public synchronized Candidate getChallenger() {<BR>
&nbsp;&nbsp;&nbsp;return Challenger;<BR>
&nbsp;&nbsp;}<BR>
<BR>
&nbsp;&nbsp;// Update the totals for each Candidate...<BR>
&nbsp;&nbsp;public synchronized void updateTotals() {<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int ChallengerPopular = 0;
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int ChallengerElectoral =
0;<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int IncumbentPopular = 0;
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;int IncumbentElectoral = 0;
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;totalPopular = 0;<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// Calculate the totals...
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;for (int i = 0; i &lt; states.length;
++i) {<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ChallengerPopular
+= states[i].getChallenger().getPopular();<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ChallengerElectoral
+= states[i].getChallenger().getElectoral();<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;IncumbentPopular
+= states[i].getIncumbent().getPopular();<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;IncumbentElectoral
+= states[i].getIncumbent().getElectoral();<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;totalPopular
+= states[i].getTotalVotes();<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;} // end for<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// Update the Candidates...
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Incumbent = new Candidate(&quot;Incumbent&quot;,IncumbentElectoral,IncumbentPopular);
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Challenger = new Candidate(&quot;Challenger&quot;,ChallengerElectoral,
</TT><FONT FACE="ZapfDingbats">&Acirc;</FONT><TT>ChallengerPopular);
<BR>
&nbsp;&nbsp;}<BR>
<BR>
&nbsp;&nbsp;// Take a state field and find spot in state<BR>
&nbsp;&nbsp;// table to update...<BR>
&nbsp;&nbsp;public synchronized void stateUpdate(StateEntry newState)
{<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;String name = newState.getName();
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;for (int i = 0; i &lt; states.length;
++i) {<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// Replace
state that matches current entry...<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (name.equals(states[i].getName()))
{<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;states[i]
= newState;<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return;
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;} // end for<BR>
System.out.println(&quot;STATE UPDATE ERROR!&quot;);<BR>
&nbsp;&nbsp;}<BR>
<BR>
&nbsp;&nbsp;// Get total popular vote...<BR>
&nbsp;&nbsp;public synchronized int getTotalPopular() {<BR>
&nbsp;&nbsp;&nbsp;return totalPopular;<BR>
&nbsp;&nbsp;}<BR>
<BR>
&nbsp;&nbsp;// Get info for a specific state...<BR>
&nbsp;&nbsp;private synchronized StateEntry getState(String name)
{<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;for (int i = 0; i &lt; states.length;
++i) {<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// Replace
state that matches current entry...<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if (name.equals(states[i].getName()))
{<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return
states[i];<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;} // end for<BR>
System.out.println(&quot;STATE GET ERROR!&quot;);<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return null;<BR>
&nbsp;&nbsp;}<BR>
}</TT>
</BLOCKQUOTE>
<HR>
<H4>The Candidate Class</H4>
<P>
Listing 11.4 displays the Candidate class, which contains the
name and vote totals of a specific candidate. Although it's a
simple accessor class, it effectively functions as a row in a
virtual table of candidates.
<HR>
<BLOCKQUOTE>
<B>Listing 11.4. The Candidate class.<BR>
</B>
</BLOCKQUOTE>
<BLOCKQUOTE>
<TT>// This is a simple accessor class to
keep information<BR>
// about candidates...<BR>
public class Candidate {<BR>
&nbsp;&nbsp;&nbsp;String Name;&nbsp;&nbsp;// Name of candidate
<BR>
&nbsp;&nbsp;&nbsp;int to