Is HTML size a problem using JavaHelp?

Hi guys,
I converted a MS Word document to HTML and I'd like to display it using JavaHelp. The HTML file size is about 800k. It does work, but it takes a few minutes to be displayed!!!
I tried with HTML files with size of about 100k and it works better (it takes a few seconds).
Where is the problem? Is the HTML size? Or is MS Word that doesn't work so well?
Thanks a lot for yoour answers!
Paul.

I agree, using Ms Word to produce HTML it's not the best way. But I have a word file (more than 100 pages) and I can't spend much time to create the HTML by myself.
However I'll try to split my file and see if it could work better.
In any case, may the html size be a problem? Or a well formatted html file with size of 800k should be displayed quickly?
Thank you very much, regards
Paul.

Similar Messages

JavaHelp: problem with HTML size

Hi guys,
I converted a MS Word document to HTML and I'd like to display it using JavaHelp. The HTML file size is about 800k. It does work, but it takes a few minutes to be displayed!!!
I tried with HTML files with size of about 100k and it works better (it takes a few seconds).
Where is the problem? Is the HTML size? Or is MS Word that doesn't work so well?
Thanks a lot for your answers!
Paul.

MS Word produces fat ugly HTML.

Problem using relative sizes on a HTMLtext

Hi
I have a problem using relative sizes on a HTMLtext on Flash
ActionsScript
2.0
Something like:
htmltext= '<font size="+5">TITLE</font>Text
Praragraph...'
(+5 in normal HTML means is 5 points bigger than the standard
text.)
I create the the textArea i set the size and everything if I
do it by
actionscript everything works fine except when i setup the
htmltext, the
text disspears so I need to re-set the embeded font with:
myTextFormat.font = Varfont;
textBox.embedFonts = true;
textBox.setTextFormat(myTextFormat);
But using this lines I lose the previous size. that i
assigned before when i
created the textarea. And goes to a standard size... dont
know why, i am
using a different TextFormat.....
And If i want to use the size i was using , all the text
becomes the same
size (but is the size that I want)...
If I create the text area manually using the gui, it works
well.
¬_¬
>-------------------------------------------------------------------------------------<
The main problem is... why the the text dissapears when i set
a new html
text???
>-------------------------------------------------------------------------------------<
Thanks.

1. Really there are a few functions that i skiped yesterday:
3. The font is linked and embeded in library.
public function setHTMLText(texto:String):Void {
textBox.html = true;
textBox.htmlText = texto;
public function setEmbedFont(__font) {
_font = __font;
_embed = true;
setTextStyle(__font);
public function setTextStyle(__font:String, __bold:Boolean,
__underline:Boolean, __italic:Boolean) {
var myTextFormat:TextFormat = new TextFormat();
myTextFormat.font = _font;
textBox.setTextFormat(myTextFormat);
public function setTextSize(__size:Number) {
var myTextSize:TextFormat = new TextFormat();
myTextSize.size = _size;
textBox.setTextFormat(myTextSize);
Kind of constructor:
autotext_txt.setTextSize(20);
//1 if I activate this one the text will dissapear after
asigning a new
text. And I will need to apply the embed font again.
autotext_txt.setEmbedFont("Arial2");
autotext_txt.setHTMLText(This is a text (big text) | <font
size="-5"
color="#dddddd"> Small Text</font>');
autotext_txt.setEmbedFont("Arial2");
Why dont u have a try?
Thanks,
J
"kglad" <[email protected]> escribió en
el mensaje
news:elo6bk$pu3$[email protected]..
> 1. where's Varfont defined?
> 2. htmtext should be htmlText.
> 3. have you defined a linkage id for a library font?

Rendering problem using meteor inside an HTML overlay

Hi everyone,
I'm having a pretty specific problem, using meteor, and could really use some help.
I've posted a detailed description of the problem on Stack Overflow, but the gist of it is this:
Inside of Adobe DPS, the headless browser used in overlays on iOS 6.1.7 has some issues with meteor.
specifically:
1- every meteor page -- no matter if it's just the out-of-the-box Hello Meteor page -- generates a non-obtrusive error: TypeError: 'undefined' is not a function. There's no stack trace, no other details (I used debuggify to discover the error)
2- after redirect from the "accept permissions" page(s) using the Facebook Login Alternative flow, the page will not render.
Neither of these errors occurs inside Mobile Safari, or Mobile Chrome on the iPad.
I believe this may be caused by some of the restrictions we're putting on the headless browser (hence error #1), and is a combination of the redirect having a hash (#) after the URL, and (maybe?) handlebars or some other js framework not loading in time.
If anyone has any ideas -- either to solve this specific problem, or a workaround for me (I need to log in to facebook using meteor, inside a DPS article HTML overlay on an iPad) I'd really appreciate it.
Article on Stack is here: http://stackoverflow.com/questions/18808652/meteor-rendering-in-adobe-dps-overlay-after-re direct-from-facebook-login
Thanks!
Strack

Unfortunately if something works in Mobile Safari that doesnt' mean it'll work in DPS, due to how the iOS Web Control works. It's kinda, but not exactly, the same as Mobile Safari, and sometimes things work in one but not the other. This isn't something we have control over either, it's just how the OS control works.
Neil

Problem using JScrollPane

Hello,
I have a problem using a JTable on a JScrollPane. here is my code :
/*------------------ SCROLL PANE SETUP ---------------------------*/
          // setup JT_results
          this.JT_results = new JTable(new MTableModel());
          this.JT_results.setPreferredSize(new Dimension(300, 100));
          this.JT_results.addMouseListener(this);
          // setup JSP_resultPane
          this.JSP_resultPane = new JScrollPane(this.JT_results);
          this.JSP_resultPane.setPreferredSize(new Dimension(300, 100));
          this.JSP_resultPane.setBackground(Color.BLACK);
/*------------------ SCROLL PANE SETUP END ---------------------------*/The JTable works perfect and a scrollbar appears on the right but It allows me to scroll only a little bit. I can not scroll enought to see the entire table.
Do someone now where it could come from ?
many thanks

Don't set the preferred size of the table.
If you need further help then you need to create a [url http://homepage1.nifty.com/algafield/sscce.html]Short, Self Contained, Compilable and Executable, Example Program (SSCCE) that demonstrates the incorrect behaviour, because I can't guess exactly what you are doing based on the information provided.
And don't forget to use the [url http://forum.java.sun.com/help.jspa?sec=formatting]Code Formatting Tags so the code retains its original formatting.

Problem using namespace of XML docs gerenrated by XMLForm

Hi community!
I am facing a problem using namespace within a XSL stylsheet. Let me describe my problem:
I am using the SAP XMLFormsBuilder within the SAP EnterprisePortal in order to provide a HTML based form for creating and editing specific XML documents. The data in the generated documents is finally presented as HTML using XSL Transformation.
In the XMLFormsBuilder you define the Schema of the XML document and the HTML GUI of the form. The Schema document looks like below (extract):
<?xml version="1.0" encoding="utf-8"?>
<schema targetNamespace="http://www.xmlspy.com/schemas/orgchart"
        xmlns="http://www.w3.org/2001/XMLSchema"
        xmlns:xyz="http://www.xmlspy.com/schemas/orgchart" Version="6.3.0">
<element name="commodity"
           default=""
           minOccurs="1"
           maxOccurs="1"
           ns="p2p"
           xmlns:p2p="http://www.portal.p2p.com">
    <complexType>
      <sequence>
        <element name="administrative_information"
                 default=""
                 minOccurs="1"
                 maxOccurs="1"
                 ns="p2p">
          <complexType>
            <sequence>
              <element name="creation_date"
                       default=""
                       minOccurs="1"
                       maxOccurs="1"
                       type="date"
                       ns="p2p"/>
As far as I understand, each element defined in the Schama belongs to the namespace "p2p" and this is exactly what I want.
The XML document generated by the form looks like below (extract):
<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="show_card.xsl"?>
<commodity xmlns:xf="http://www.sapportals.com/wcm/app/xmlforms"
           xmlns:xsi="http//www.w3.org/2001/XMLSchema-instance"
           xsi:noNamespaceSchemaLocation="/etc/xmlforms/P2PCategoryCard_TEST/P2PCategoryCard_TEST-Schema.xml">
<administrative_information>
    <creation_date>2005-07-04</creation_date>
Consequently, the file "show_card.xsl" is the responsible XSLT stylesheet, which looks like this:
<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="1.0"
                xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                xmlns:p2p="http://www.portal.p2p.com">
<xsl:output method="html"/>
<xsl:template match="p2p:commodity">
    <html>
    <body>
      <h2>XSLT Test</h2>
      Creation Date: <xsl:value-of select="p2p:administrative_information/p2p:creation_date"/>
    </body>
    </html>
</xsl:template>
</xsl:stylesheet>
The problem in the XSLT stylesheet is, that I want to access the XML document elements using their namespace. And this is exactly what does not work for me. On the other hand, if I remove the reference to the namespace:
<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="1.0"
                xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                xmlns:p2p="http://www.portal.p2p.com">
<xsl:output method="html"/>
<xsl:template match="commodity">
    <html>
    <body>
      <h2>XSLT Test</h2>
      Creation Date: <xsl:value-of select="administrative_information/creation_date"/>
    </body>
    </html>
</xsl:template>
</xsl:stylesheet>
the stylesheet works fine, but for some technical reasons, which I don't want to explain here, I have to use the namespace when accessing the XML document elements.
For technical reasons, I cannot change the format of the Schema document and also cannot change the format of the generated XML document. The only file I can change and control is the XSLT stylsheet.
My question is now, in the case described above, if there is any way to use the namespace in the sytlesheet when accessing the XML elements?
Any help is appreciated.
Cheers,
Adam Kreuschner

duggal.ashish wrote:
3. Some XML files contain a "iso-8859-1" character with character code 146 which appears like apostrophes but actually it is : -  and the problem is that words like cant are shown as can?t by database.http://en.wikipedia.org/wiki/ISO8859-1
Scroll down in that page and you'll see that the character code 146 -- which would be 92 in hexadecimal -- is in the "unused" area of ISO8859-1. I don't know where you got the idea that it represents some kind of apostrophe-like character but it doesn't.
Edit: Actually, I do know where you got that idea. You got it from Windows-1252:
http://en.wikipedia.org/wiki/Windows-1252
Not the same charset at all.

Problem using Binary wrappers in a Replicated cache

I'd like to store my keys and values as Binary objects in a replicated cache so I can monitor their size using a BINARY unit-calculator. However, when I attempt to put a key and value as com.tangosol.util.Binary, I get the enclosed IOException.
I have a very simple sample to reproduce the exception, but I don't see a way to attach it here.
2008-07-07 09:21:35.061 Oracle Coherence GE 3.3.1/389 <Error> (thread=ReplicatedCache, member=1): Failed to deserialize a key for cache MyMap
2008-07-07 09:21:35.061 Oracle Coherence GE 3.3.1/389 <Error> (thread=ReplicatedCache, member=1): An exception (java.io.IOException) occurred reading Message LeaseUpdate Type=9 for Service=ReplicatedCache{Name=ReplicatedCache, State=(SERVICE_STARTED), Id=2, Version=3.0, OldestMemberId=1}
2008-07-07 09:21:35.061 Oracle Coherence GE 3.3.1/389 <Error> (thread=ReplicatedCache, member=1): Terminating ReplicatedCache due to unhandled exception: java.io.IOException
2008-07-07 09:21:35.061 Oracle Coherence GE 3.3.1/389 <Error> (thread=ReplicatedCache, member=1):
java.io.IOException: unsupported type / corrupted stream
     at com.tangosol.util.ExternalizableHelper.readObject(ExternalizableHelper.java:2162)
     at com.tangosol.coherence.component.net.Message.readObject(Message.CDB:3)
     at com.tangosol.coherence.component.net.message.LeaseMessage.read(LeaseMessage.CDB:11)
     at com.tangosol.coherence.component.net.message.leaseMessage.ResourceMessage.read(ResourceMessage.CDB:5)
     at com.tangosol.coherence.component.util.daemon.queueProcessor.Service.onNotify(Service.CDB:110)
     at com.tangosol.coherence.component.util.daemon.queueProcessor.service.ReplicatedCache.onNotify(ReplicatedCache.CDB:3)
     at com.tangosol.coherence.component.util.Daemon.run(Daemon.CDB:35)
     at java.lang.Thread.run(Thread.java:619)
2008-07-07 09:21:35.061 Oracle Coherence GE 3.3.1/389 <D5> (thread=ReplicatedCache, member=1): Service ReplicatedCache left the cluster

Hi John,
Currently the Replicated cache service uses Binary only for internal value representation and does not allow storing arbitrary Binary objects in replicated caches. You should have no problems using partitioned (Distributed) cache service with this approach.
Regards,
Gene

I downloaded a application to my iphone5, however when i open the application i receive a message stating that my device clock apperars to be incorrect as a result you may experience problems using this application. How do i fix this issue?

Im trying to watch a show but because of this message its not allowing me to do so. Again the error message im receiving is " Your device's clock appears to be incorrect as a result you ,ay experince problems using this application" how do i resolve this issue?

If there are problems with updating or with the permissions then best is to download the full version and trash the currently installed version to do a clean install of the new version.
Download a new copy of the Firefox application and save the disk image file to the desktop
*Firefox 26.0: http://www.mozilla.org/en-US/firefox/all.html
*Trash the current Firefox application (open the Applications folder in the Finder and drag the Firefox application to the Trash) to do a clean (re-)install
*Install the new version that you have downloaded
*https://support.mozilla.org/kb/Installing+Firefox+on+Mac
Your personal data is stored elsewhere in the Firefox profile folder, so you won't lose your bookmarks and other personal data when you uninstall and (re)install Firefox.
*http://kb.mozillazine.org/Profile_folder_-_Firefox

Embedding HTML page into Flex using Adobe AIR

Hi,
This is Siva Kumar. Need help in embedding an HTML in Flex .
We are using Adobe Air. To embed an HTML in Flex we used
<mx:HTML> tag. Its working fine but whts the problem is its
not allowing to download files / attachements. I tried to use
google flex iframes to resolve this issue. I am able to download
files/attachments if I open application as web / standalone. If I
try to open same application using adobe air its giving error like
" ExternalInterface is not available in this container.
Internet Explorer ActiveX, Firefox, Mozilla 1.7.5 and greater, or
other browsers that support NPRuntime are required"
Later wht I found is at present ExternalInterface is not
supporting adobe air.
Could anybody help me to resolve this issue. If anybody has
any idea on how to overcome this issue. Please suggest me to
resolve this issue. Thanks in Advance.
Thanks,
Siva Kumar

looks like your equipmentArray is empty. Put a breakpoint inside that method to see if there is any data.

Performance problem using OBJECT tag

I have a performance problem using the java plugin and was wondering if anyone else was has seen the same thing. I have a rather complex applet that interacts with java script in a web page using the LiveConnect API. The applet both calls javascript in the page and is called by java script.
Im using IE6 with the java plugin that ships with the 1.4.2_06 JVM. I have noticed that if I deploy the applet using the OBJECT tags, the application seems the trash everytime I call a java method on the applet from javascript. When I deplot the same applet using the APPLET tag the perfomance is much better. I would like to use the OBJECT tag because it applet bahaves better and I have more control over the caching.
This problem seems to be on the boundaries of IE6, JScript, the JVM and my Applet (and I suppose any could be the real culprit). My application is IE5+ specific so I can not test the applet in isolation from the surround HTML/JavaScript (for example in another browser).
Does anyone have any idea?
thanks in advance.
dennis.

I have a performance problem using the java plugin and was wondering if anyone else was has seen the same thing. I have a rather complex applet that interacts with java script in a web page using the LiveConnect API. The applet both calls javascript in the page and is called by java script.
Im using IE6 with the java plugin that ships with the 1.4.2_06 JVM. I have noticed that if I deploy the applet using the OBJECT tags, the application seems the trash everytime I call a java method on the applet from javascript. When I deplot the same applet using the APPLET tag the perfomance is much better. I would like to use the OBJECT tag because it applet bahaves better and I have more control over the caching.
This problem seems to be on the boundaries of IE6, JScript, the JVM and my Applet (and I suppose any could be the real culprit). My application is IE5+ specific so I can not test the applet in isolation from the surround HTML/JavaScript (for example in another browser).
Does anyone have any idea?
thanks in advance.
dennis.

Problem using an editable JComboBox as JTable cell editor

Hi,
i have a problem using an editable JComboBox as cell editor in a JTable.
When i edit the combo and then I press the TAB or ENTER key then all works fine and the value in the TableModel is updated with the edited one, but if i leave the cell with the mouse then the value is not passed to the TableModel. Why ? Is there a way to solve this problem ?
Regards
sergio sette

if (v1.4) [url
http://java.sun.com/j2se/1.4.2/docs/api/javax/swing/JTa
le.html#setSurrendersFocusOnKeystroke(boolean)]go
hereelse [url
http://forum.java.sun.com/thread.jsp?forum=57&thread=43
440]go here
Thank you. I've also found this one (the first reply): http://forum.java.sun.com/thread.jsp?forum=57&thread=124361 Works fine for me.
Regards
sergio sette

Problem using c:forEach

I'm having a problem using c:forEach. Eclipse is telling me the problem is with the items parameter, and for the life of me, I cannot see why, since I could swear forEach uses an items parameter. Here is my code and the exception report. Can anyone please help? Thanks.
<table>
     <c:forEach var="user" items="${users}">
          <tr>
               <td>${user.name}</td>
               <c:forEach var="education" items="${education}">
                    <td>${education.school}</td>
                    <td>${education.major}</td>
                    <td>${education.degree}</td>
                    <td>${education.gpa}</td>
               </c:forEach>
               <c:forEach var="employment" items="${employment}">
                    <td>${employment.employer}</td>
                    <td>${employment.jobtitle}</td>
                    <td>${employment.startdate}</td>
                    <td>${employment.enddate}</td>
               </c:forEach>
          </tr>
     </c:forEach>
</table>
org.apache.jasper.JasperException: /RecruiterResumeResults.jsp(46,1) According to TLD or attribute directive in tag file, attribute items does not accept any expressions
     org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:40)
     org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)
     org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:148)
     org.apache.jasper.compiler.Validator$ValidateVisitor.checkXmlAttributes(Validator.java:1174)
     org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:821)
     org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1530)
     org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2361)
     org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2411)
     org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2417)
     org.apache.jasper.compiler.Node$Root.accept(Node.java:495)
     org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2361)
     org.apache.jasper.compiler.Validator.validateExDirectives(Validator.java:1736)
     org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:183)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:332)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:312)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:299)
     org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:586)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
     org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:389)

In web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.4"
     xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">At the top of my JSP:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
     pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@ taglib prefix="s" uri="/struts-tags"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>

Problem using multiple contexts in same thread

Hello,
I am having problem using multiple contexts in the same thread. Here is the scenario:
front-end is calling a ejb1 with a user1 and password. Ejb1 is then calling ejb2
using user2 and password. I am getting security exception when calling ejb2 with
the message user1 is not authorized. Looking at the documentation, context 2 should
be pushed on stack on top of context 1 and context 2 should then be used until
context.close() is called. It looks like this is not the case in this scenario?
Regards,
Jeba Bhaskaran

I have the GTX670. So pretty much the same.
When I go to Edit>Preferences>Playback I see:
When I select the monitor I am not currently using for Premiere Pro, the Program Monitor shows up full size at 1920X1080 in that monitor.
While that may not help you, at least you know a similar card can do the job and you know that it should work.. What happens if you drop down to two monitors? Will it work then?
Also, have you performed the hack that allows Premiere Pro to use the card since that card is not in the file? I have no idea if that is relevant at all, by the way. It is just an attempt at getting our systems to work the same way.

How to Increase the retreving size of instances using PAPI filters.

Hi,
How to Increase the retreving size of instances using PAPI filters.
In my engine database instance size exceeds 2500 then we are getting following exception.
If we login in to user workspace able to see the instances but while trying to retrieve from PAPI getting below exception and showing the user's inbox aize as 0.
In Process Admin console we set all the required parameters.
Still I m getting the same problem.
Can you please lgive mev the solution.
<Mar 23, 2010 8:58:24 PM SGT> <Warning> <RMI> <BEA-080003> <RuntimeException thrown by rmi server: fuego.ejbengine.EJBProcessControl_1zamnl_EOImpl.getInstancesByFilter(Lfuego.papi.impl.j2ee.EJBSecureEngineInfo;Ljava.lang.String;Lfuego.papi.Filter;)
java.lang.ClassCastException: cannot assign instance of java.util.HashSet to field fuego.view.FilterImpl.attributes of type java.util.List in instance of fuego.view.FilterImpl.
java.lang.ClassCastException: cannot assign instance of java.util.HashSet to field fuego.view.FilterImpl.attributes of type java.util.List in instance of fuego.view.FilterImpl
     at java.io.ObjectStreamClass$FieldReflector.setObjFieldValues(ObjectStreamClass.java:2032)
     at java.io.ObjectStreamClass.setObjFieldValues(ObjectStreamClass.java:1212)
     at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1953)
     at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
     at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
Regards,
Bharath.
Edited by: bg57295 on Mar 24, 2010 6:45 PM

Hi Bharath,
Believe me, you have an incompatibility between different build#.
PAPI has an instance cache. When certain process has more instances than the maximum specified, the cache is switch to status OPEN. That means, that PAPI will not be able to resolve some instance queries using the information in the cache. When that occurs, PAPI forward all those queries to the engine.
The incompatibility introduced is in the communication between PAPI and Engine. So, you only get the exception when you have more instances than the maximum cache size.
Regards,
Ariel

N-Queens Problem Using Stacks Help

I'm trying to solve the N-Queens problem using Stacks. Quite frankly, I'm completely lost.
Here's the pseudocode from the book:
"Push information onto the stack indicating the first choice is a queen in row 1, column 1.
success = false;
while(!success && !s.isEmpty())
Check whether the most recent choice (on top of the stack) is in the same row, same column, or same diagonal as any other choices (below the top). If so, we say there is a conflict: otherwise, there is no conflict.
if (there is a conflict)
-Pop items off the stack until the stack becomes empty or the top of the stack is a choice that is not in column n. If the stack is now not empty, then increase the column number of the top choice by 1.
else if (no conflict and the stack size is n)
-Set success to true because we have found a solution to the n-queens problem.
else
-Push information onto the stack indicating tat the next choice is to place a queen at row number s.size()+1 and column number 1.
And here is my excuse for code so far. I have no idea how to check the diagonals, or how to even really make this work
{code}import java.util.Stack;
public class NQueens {
int row, column, n;
public NQueens(int n) {
row = 0;
column = 0;
n = n;
public Stack Solve(){
boolean success, conflict;
Stack<NQueens> Qs = new Stack<NQueens>();
if (Qs.size() == 0)
Qs.push(new NQueens(1));
success = false;
while (!success && !Qs.isEmpty())
if (Qs.peek().row == row)
conflict = true;
if (Qs.peek().column == column)
conflict = true;
if (conflict = true)
Qs.pop();
Qs.peek().column += 1;
else
if (!conflict && Qs.size() == n)
success = true;
else
Qs.push(new NQueens(Qs.size()+1));
return Qs;
{code}

First off I'll address this:
    int row, column, n;
    public NQueens(int n) {
        row = 0;
        column = 0;
        n = n; //here
    }Notice the last line of that. I get what you're trying to do, but think about what the compiler sees there. If you have two variables called 'n', one at the class level, and one at the method level, the compiler must have rules so it knows which one you're talking about. And if it follows those rules, then saying 'n' inside that method must always refer to the same n. Otherwise, how would it decide which one you're talking about? The rule here is that it uses the most local variable available to it, which in this case is your method parameter. So 'n = n' is setting the parameter equal to itself. To refer to the class variable n, use "this.n", like so:
this.n = n;Now that that's settled, let's address some logic. You'll need to figure out whether two Queens share a diagonal. I can think of at least a couple options for that. First, every time you look at a Queen you could loop through the entire board and make sure that if a piece is in r3c4, that no piece is in r2c3,r4c5,r5c6, etc. Or you could create a new variable for your class similar to your 'row' and 'column' variables that tracks the diagonal a piece is in. But that requires some calculating. And remember, there's 2 directions for diagonals, so you'll need 2 diagonal variables.
If these are your Row and Column values:
Row          Column
00000000     01234567
11111111     01234567
22222222     01234567
33333333     01234567
44444444     01234567
55555555     01234567
66666666     01234567
77777777     01234567And these are your diagonal values:
Diag 1                    Diag 2
0 1 2 3 4 5 6 7          7 6 5 4 3 2 1 0
1 2 3 4 5 6 7 8          8 7 6 5 4 3 2 1
2 3 4 5 6 7 8 9          9 8 7 6 5 4 3 2
3 4 5 6 7 8 9 10          10 9 8 7 6 5 4 3
4 5 6 7 8 9 10 11          11 10 9 8 7 6 5 4
5 6 7 8 9 10 11 12          12 11 10 9 8 7 6 5
6 7 8 9 10 11 12 13          13 12 11 10 9 8 7 6
7 8 9 10 11 12 13 14          14 13 12 11 10 9 8 7Then examine the relationship between Row(R), Column(C), and Diagonals 1 and 2 (D1/D2):
RC   D1,D2
00 = 0,7
01 = 1,6
02 = 2,5
03 = 3,4
04 = 4,3
05 = 5,2
06 = 6,1
07 = 7,0
10 = 1,8
11 = 2,7
12 = 3,6
13 = 4,5
14 = 5,4
15 = 6,3
16 = 7,2
17 = 8,1You'll notice that D1 is always the same as R + C. And D2 is always the same as C subtracted from 7 plus R, giving:
int d1 = row + column;
int d2 = (7 + row) - column;But remember, that 7 in the formula above, is based on how big your grid is. So whatever your 'N' is, whether its a 10x10 square or a 574x574 square, that 7 should be changed to (N-1)
So those could be your variables to track diagonals. What I'm noticing in your current code, is that you never change your row and column variables...so every Queen is always at r0c0. You should probably put values for those in your parameters for the constructor, in addition to n. Then the diagonals can be calculated from those.
Edited by: newark on Apr 17, 2008 10:46 AM

Is HTML size a problem using JavaHelp?

Similar Messages

Maybe you are looking for