SUDOKU in JAVA Plz Help

Hi
I want to develop a Java program to solve Sudoku puzzles
My program must be able to:
�Read in a puzzle (from the predefined file format � see below)
�Display the unsolved puzzle
�Solve the puzzle
�Display the solved puzzle
File Format
The file consists of a number of integers.
The first integer signifies the size of the puzzle e.g. a 2 indicates a 4x4 puzzle, a 3 indicates a 9x9 puzzle, a 4 indicates a 16x16 puzzle and so on.
The remaining numbers are one integer for each square of the puzzle (e.g. 81 integers for a 9x9 puzzle) and should be read left to right and top row to bottom row. A zero means that the square is empty. A non-zero indicates the number in that square.

> Hi
I want to develop a Java program to solve Sudoku
puzzles
My program must be able to:
non-zero indicates the number in that square.
And your question is?

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How to use padding scheme FIPS81 in java plz help?

Plz refer the below code using this code I m trying to decrypt XLS file using pass phrase.
I m using the same pass phrase which was used @ the time of encryption.
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Exception : javax.crypto.BadPaddingException: Given final block not properly padded
I urgently need the solution of this problem so somebody plz help me to find the solution of this problem.....Ur reply would be appriciated.....!!
The File is Encrypted using below mechanism
ALGORITHM : AES
MODE : ECB
PADDING SCHEME : FIPS81
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import javax.crypto.*;
import javax.crypto.spec.*;
public class DecryptTest {
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          String decFileName = "decsample.xls";
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          FileOutputStream decFileOut = null;
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I suggest you look in google http://www.google.co.uk/search?q=SWF+java

Im a Total new Person to java plz help...

I was wondering if somone could help me with this code ive been working on...
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import java.awt.event.*;
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private int HEIGHT = 600;
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((((((((((((((label4 = new JTextField (25);)))))
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finish.setLineWrap(true);
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panel.add (pizza);
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((((((((((((((((( panel.add (label4);))))))))))))))))))))
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frame.getContentPane().add (panel);
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public void display()
frame.pack();
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class DoneListener implements ActionListener
// Performs the conversion when the enter key is pressed in
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public void actionPerformed (ActionEvent event)
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finish.append("Sup "+text1+". I hate That why do you like "+text2+" anyway...HMMM>???!!!!"); // to give the actual output.
(i keep getting this error)
\\w2knas2\data$\Secondary\Users\H\HURLECHR000\QB\MadLibGUI.java:35: cannot resolve symbol
symbol : variable label3
location: class MadLibGUI
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^
\\w2knas2\data$\Secondary\Users\H\HURLECHR000\QB\MadLibGUI.java:36: cannot resolve symbol
symbol : variable label4
location: class MadLibGUI
label4 = new JTextField (25);
^
\\w2knas2\data$\Secondary\Users\H\HURLECHR000\QB\MadLibGUI.java:52: cannot resolve symbol
symbol : variable label3
location: class MadLibGUI
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^
3 errors
Tool completed with exit code 1
(i know its probly a simple change but im stumped...If this is the wrong Section PLZ redirect me to the appropriate place...Thanks ^_^

Ohh man I cant believe i did forgot this...Sorry to
Bother you all
private JLabel sticker,spray,
private JTextField joe,pizza,
man i forgot to declare...You are all right im sorry
to bother...but thanks for forcing me to review my
code...No problem.
However, in the future, when you post code, please use [code] and [/code] tags as described in Formatting tips on the message entry page. It makes it much easier to read.

New to java, plz help

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yea, heres a lot of code that calculates the Flesch readability of a piece of writing.
import java.io.*;
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Plz help using ms access as database,i want to create a login page in java

hye frnz... plz help me m new to java
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Edited by: 795772 on Sep 19, 2010 4:44 AM

795772 wrote:
hye frnz... plz help me m new to java
m using ms access as database and try to create a login page where user type username and pw
i had enter valid user entries in database i checked connectivity is working i want as user login the main window must open after checking username and pw field to database but
now there is an error class not found exception sun:jdbc...... error
plz help me i had stuck frm 4 days */
<snip>The subject of this forum is Oracle databases. How does your problem relate to that subject?
Two bits of advice:
1) Make sure you ask questions in a forum related to your problem.
2) If you want to be taken seriously as a professional, drop the MS IM Speak and use the language of the forum. In this forum it is English, which is successfully used by many people for whom English is far from their native language.

How can I access my java class file in a .jar file ...PLz Help anyone!!

Hi Folks,
I am new in Java programming, have a .jar file that contains .java files that I want no access and use from another .java file. These files in the .jar file basically form a library thus have no main-method. However I can not declare an instance of the library (in the .jar file) and use it within my program.
Plz help ...I have tried all I know in vain.
Thanks.

temba wrote:
Hi Folks,
I am new in Java programming, have a .jar file that contains .java files that I want no access and use from another .java file. These files in the .jar file basically form a library thus have no main-method. However I can not declare an instance of the library (in the .jar file) and use it within my program. You are making little sense. You can't instantiate .java files.
Plz help ...I have tried all I know in vain.
Thanks.Could you post WHAT you have tried and also post what error messages you received?

PLz Help New To Java

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You didn't which OS you are running, but it's fairly similar for all windows.
Start->settings->control panel->system->advanced->environment variables
Go to System variables, click on path, click edit button and add a semicolon and the path at the end. DO NOT REPLACE EVERYTHING THAT'S THERE NOW.
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If Java was installed prior to Mozilla, it should have automatically installed.
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java.rmi.MarshalException: error marshalling arguments; nested exception is:
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Regerds
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JFrame frame = new JFrame("About");
JTextArea filecontents = new JTextArea();
filecontents.setText("Use the tool bar to compose\n compose new emails, in which you can\n send to anyone on the\n srvhs email server. \n Fill in all the blanks before pressing send. If you dont\n you will receive an error! \n For more information about this program click on the\n information button.");
frame.getContentPane().add(filecontents, BorderLayout.CENTER);
frame.pack();
frame.setResizable(false);
frame.setSize(300,200);
frame.setVisible(true);
//===============================
public void composeWindow() {
frame2.getContentPane().setLayout(new GridBagLayout());
frame2.setResizable(false);
frame2.setSize(600,500);
frame2.setVisible(true);
GridBagConstraints gbc = new GridBagConstraints();
gbc.insets = new Insets(5, 10, 5, 10);
cMessage.setLineWrap(true);
subbutton = makeNavigationButton("toolbarButtonGraphics/general/SendMail24.gif", submit,"submit","submit");
addRow(gbc, lFrom, cFrom);
addRow(gbc, lTo, cTo);
addRow(gbc, lSubject, cSubject);
addRow(gbc, lMessage, cMessage);
addRow(gbc, lSubmit, subbutton);
//===============================
private void addRow(GridBagConstraints gbc, Component left, Component right) {
gbc.gridx = GridBagConstraints.RELATIVE;
gbc.gridy = GridBagConstraints.RELATIVE;
gbc.gridheight = 1;
gbc.gridwidth = 1;
gbc.anchor = GridBagConstraints.EAST;
frame2.getContentPane().add(left, gbc);
gbc.gridwidth = GridBagConstraints.REMAINDER;
gbc.anchor = GridBagConstraints.WEST;
frame2.getContentPane().add(right, gbc);
frame2.pack();
//=======================
public static void send(String smtpServer, String to, String from, String subject, String body) {
try {
Properties props = System.getProperties();
props.put("localhost", smtpServer);
Session session = Session.getDefaultInstance(props, null);
System.out.println(smtpServer);
// -- Create a new message --
Message msg = new MimeMessage(session);
// -- Set the FROM and TO fields --
msg.setFrom(new InternetAddress(from));
msg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to, false));
// -- We could include CC recipients too --
// if (cc != null)
// msg.setRecipients(Message.RecipientType.CC
// ,InternetAddress.parse(cc, false));
// -- Set the subject and body text --
msg.setSubject(subject);
msg.setText(body);
// -- Set some other header information --
msg.setHeader("X-Mailer", "LOTONtechEmail");
msg.setSentDate(new Date());
// -- Send the message --
Transport.send(msg);
System.out.println("Message sent OK.");
catch (Exception ex)
ex.printStackTrace();
public static void main(String[] args) {
JFrame frame = new JFrame("EmailProg");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
EmailProg newContentPane = new EmailProg();
newContentPane.setOpaque(true);
frame.setContentPane(newContentPane);
//Display the window.
frame.pack();
frame.setVisible(true);
}

The code to retrieve the messages from SMTP
finally all working fine...
thanx guys!!!
package EmailProg;
import javax.mail.*;
import javax.mail.internet.*;
import java.util.*;
import java.io.*;
* A simple email receiver class.
public class SimpleReceiver
    * Main method to receive messages from the mail server specified
    * as command line arguments.
public static void main(String args[])
    try
      String popServer=args[0];
      String popUser=args[1];
      String popPassword=args[2];
      receive(popServer, popUser, popPassword);
    catch (Exception ex)
      System.out.println("Usage: java com.mail.SimpleReceiver" +" popServer popUser popPassword");
    System.exit(0);
     * "receive" method to fetch messages and process them.
   public static void receive(String popServer, String popUser, String popPassword)
     Store store=null;
     Folder folder=null;
     try
       // -- Get hold of the default session --
       Properties props = System.getProperties();
       Session session = Session.getDefaultInstance(props, null);
       // -- Get hold of a POP3 message store, and connect to it --
       store = session.getStore("pop3");
       store.connect(popServer, popUser, popPassword);
       // -- Try to get hold of the default folder --
       folder = store.getDefaultFolder();
       if (folder == null) throw new Exception("No default folder");
       // -- ...and its INBOX --
       folder = folder.getFolder("INBOX");
       if (folder == null) throw new Exception("No POP3 INBOX");
       // -- Open the folder for read only --
       folder.open(Folder.READ_ONLY);
       // -- Get the message wrappers and process them --
       Message[] msgs = folder.getMessages();
       for (int msgNum = 0; msgNum < msgs.length; msgNum++)
         System.out.println(msgs[msgNum]);
     catch (Exception ex)
       ex.printStackTrace();
     finally
       // -- Close down nicely --
       try
         if (folder!=null) folder.close(false);
         if (store!=null) store.close();
       catch (Exception ex2) {ex2.printStackTrace();
}

Plz help with a java app

Dear experts,
I have a java application in form of a running thread that periodically does an activity ie running a BAPI in
SAP.I like to schedule this application at evening time.
Problem is that incase somebody remotely login to this Windows server using RDP and leave an open RDP session,
two instance starts one on RDP and other on console.
Now to overcome this problem i devised a solution myself that incase application detects session is remote
then it should exit itself. This is mentioned in forum undergiven.
http://forums.sun.com/thread.jspa?threadID=5410674&messageID=10835701#10835701
My perception behind carrying out this development was that incase session starts in remote then
app will automatically close and finally letting running only in console.
Now what happens is that scheduled task doesnot start at all on console ,incase console as well as RDP are open.
Instead it starts only on RDP failing instantly.So in nutshell,task doesnot start at all.My app log say that
service tried to open in remote session and got closed.Plz help as i have no way out.
My second question is that if i schedule task using RDP on remote server,will it run on Remote,console or both
of them.
Regards,
Aditya.

Adi1000 wrote:
My app also generates a .lock file and make sure that only one instance is running.Still problem remains unresolvedAnd combining your other thread with the word "also" from this post just exacerbates your "problem". Also, the "lock" file was not to prevent two simulteneous runs (that leads to very distasteful race condition), but rather to prevent two runs within a set period of time when combined with the ServerSocket approach to prevent simulteneous runs.

Error in variables,plz help me

I created a variable del_var.The sql query assosiated with this variable is.
Delete from schema.file_name_table where rownum=1;
After refreshing it.it is deleting first row in the table.But it is resulting in an error
"17003 : null : java.sql.SQLException: Invalid column index java.sql.SQLException: Invalid column index "
Plz help me

Hi,
You can't use a 'Delete" command at a refreshing variable because at a refresch the variable need to receive a value back and the delete doesn't return value.
Change the command to "select....."
Does it make sense to you?

Not able to access webservice after migrating from 8.1 to 10.3,plz help

Hi All,
Prev our application was running in weblogic 8.1 and now we moved to 10.3
We are able to deploy our webservice in 10.3 and access the wsdl but we are not able to access the webservice from the client.
Even the testclient is not comming up.
After spending long time in that,now i dont have any clue on this issue.
Plz help on this
Thanks ni advance,
Mouli

Sunil,
We are not seeing any exception.We regenerated the webservice and then deployed in the 10.3
When we make req from the client ,we are getting null response but thing is there are no log trace in the server side for that
folllowing is the input string we are pasing to the method notifyservice
IN the client we pass the wsdl url and then pass the following input string and hit the notifySerivce method
Req:
<?xml version="1.0" encoding="UTF-8" standalone="no"?><object><GLCCode>102431</GLCCode><callBackNumber>888256798</callBackNumber></object>
Res:
<m:notifyService xmlns:m="http://www.testportal.com/outbound/tsp/WowWebservices">
<result xsi:nil="true"/>
</m:notifyservice>
Therre was an exception in the client side,plz check below
javax.xml.rpc.soap.SOAPFaultException: Failed to get operation name from incoming request
at weblogic.webservice.core.ClientDispatcher.receive(ClientDispatcher.java:317)
at weblogic.webservice.core.ClientDispatcher.dispatch(ClientDispatcher.java:147)
at weblogic.webservice.core.DefaultOperation.invoke(DefaultOperation.java:473)
at weblogic.webservice.core.DefaultOperation.invoke(DefaultOperation.java:459)
at weblogic.webservice.core.rpc.CallImpl.invoke(CallImpl.java:569)
at weblogic.webservice.core.rpc.CallImpl.invoke(CallImpl.java:422)
Thanks For your time,
Mouli

Plz. help,table does not show value for one field

hi all,
i have a really strange problem , i have a string field in access database that contains the date and time value,this field for some strange reason does not show in my table created through html,
i tried all combination(arranging the fields) ,renaming it w/o help, it shows the value using out.println(but then why is it not showing me in the table???)
plz. help ASAP.
the code is as under
<HTML>
<HEAD><TITLE> LOGGED IN ok</TITLE> </HEAD>
<BODY bgcolor = "yellow">
<%@ page import = "java.sql.*" %>
     <%! // declaring variables
String s = "";
java.sql.ResultSet rs=null,rs1=null,rs2=null;
java.sql.Connection con;
java.sql.Statement stmt,stmt1;
String empId = "",compid ="",calltype ="",probheader="",probdescription ="",probcomment ="",priority ="",a="";
%>
Following are the pending complaints ..
     <TABLE BORDER=1 CELLSPACING=0 CELLPADDING=0 width="100%">
     <TR>
     <TD> ComplainD </TD>
<TD> ComplainId </TD>
<TD> ProbHeader </TD>

</TR>
     <%
     try
     Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
     java.sql.Connection con = java.sql.DriverManager.getConnection("jdbc:odbc:Driver={Microsoft Access Driver (*.mdb)};" +"DBQ=c:/vishal/HelpDesk.mdb;DriverID=22;READONLY=false","","");
     //java.sql.Connection con = java.sql.DriverManager.getConnection("jdbc:odbc:Portal");
          java.sql.Statement stmt = con.createStatement(java.sql.ResultSet.TYPE_SCROLL_INSENSITIVE,java.sql.ResultSet.CONCUR_READ_ONLY);
          s = "select * from Complains";
     java.sql.ResultSet rs = stmt.executeQuery(s);
                    while(rs.next())
                    //getting data from database
                                                       empId = rs.getString("EmpId");                    // out.print(" " + empId);
          compid = rs.getString("ComplainId");
          // out.print(" " + compid);
          calltype = rs.getString("CallType");
          // out.print(" " + calltype);
                    a = rs.getString("Complaindate"); //problem with this field
out.print(a); // prints value
          %>
                    <TR>
                    <TD> <%=compid %> </TD>
                    <TD> <%=calltype %> </TD>
                    <TD <%=a %> </TD>
                                   </TR>
<%
                    }//while loop
     %>
     </TABLE>
     <%
     }//try
          catch(Exception ep)
          out.println(ep);
          System.exit(1);
%>
</BODY>
</HTML>
value in database is as follows :-
Complaindate
5/18/2003 1:30:27 PM
5/18/2003 7:32:43 PM
5/18/2003 7:34:02 PM
5/18/2003 7:49:19 PM
5/18/2003 7:50:27 PM
5/18/2003 10:49:42 PM
5/18/2003 10:58:24 PM
thanking u ,plz ask if any further clarifications

Hi
I am seeing nothing wrong with ur code..
what about "view source" result.....plz check with that...
whether u r getting all the trs and tds...
revert back on this Issue..
Mars Amutha

Refreshing JEditorPane (Urgent) plz help

hello programmers,
i'm building an html editor:
My html editor has a split pane, the 2 pane got of the split pane are JEditorPanes, one on which i write tag and the other i display them,... thankfully all's working great, my syntax is highlighting and the html is displayed well but i've got the following problem:
when i save a html page , i wanna my browser (on the right side of the slipt pane) to display the html page... it's ok .. it displays it with the method JHTMLEditorPane.setPage(file:/// directory/ file) but the problem is that when i save the page again using the same filename... my html page on the JHTMLEditorPane stays the same... it does not update...
is their a refresh function for the JEditorPane? how can i update my JHTMLPane to reflect the changes i've brought to it? ONe thing , the page changes when i save it by aother file name..... PLz help it's very urgent!!!!!!!
Bernard

Have you tried to close and then re-open the file in your editorpane after you've saved?
It will work when you change the name because it has to open the file as new. Java can't dynamically update values upon files like C does with pointers.

SUDOKU in JAVA Plz Help

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