Use j2me to develop a chinese chess game

Hi, i am new to J2ME but i have some experience on J2SE.
Until now i still have no idea how to develop a j2me system. i already install j2me tool kit but dunno how to use and also installed Forte. The forte is just like a java builder and i now is working on it.
Can anyone help me with this programming? I have a project to do and the project title is Developing a Chinese Chess Game in PDA using J2ME.
Pls help me and give me some references or some sample coding of j2me.

Alot of stuff online. Here's some to get you started:
wireless toolkit tutorial -
http://developers.sun.com/techtopics/mobility/midp/articles/wtoolkit/
sample codes and articles-
http://developers.sun.com/techtopics/mobility/allsamples/
http://developers.sun.com/techtopics/mobility/allarticles/
http://developers.sun.com/techtopics/mobility/allttips/
Hope this helps. Good Luck.

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use google to search for tutorials. that's a very complex undetaking so unless you feel you have advanced programming skills, you would be better served starting with a simpler game like tic-tac-toe.

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I don't need Your assistance now
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First, You did not answer to my problem.
No one here is in your debt...
We will answer you if and when we can.
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(as You can see from my post which You banned-erased from forum).
Then, today You banned my new post.
Your other topic was removed, because was full of bashing MSI, insulting forum and moderators out of no where..
+ We also don't allow people to open new topics for the same subject.
>>Please read and comply with the Forum Rules.<<
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Now You want to cover up your insolence and want to help.
To cover my insolence? We have nothing to cover..
You are the person who shows impressive insolence...
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You earned your BAN right away!
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Please, erase this thread to.
No need. Good luck with your issue.

How to use a select statement with chinese characters?

I am currently developing a java servlet<using tomcat 4.x> which allows me to use select statement to retrieve results from the Microsoft SQL Server 2000 database. I am using a simple form to get the parameter for querying. The main problem i'm facing is that there are chinese information in the SQL database, but i can't retrieve it through the sql statement with the chinese characters input<thru the form with the help of NJ STAR>in the WHERE condition. When i execute the statement, it returns me no results even though the rows are present in the database.
Does anyone have the solution to using chinese words in the WHERE clause of the select statement to retrieve results with columns which contains chinese characters? Please help me. Thanks everyone. :)
PS: when i cut and paste those characters in the sql database and paste onto java.. it is ??? in questionmarks.. but when i paste them into excel 2000.. its shown as chinese chars again..
please heelppp~~

Greetings,
PS: when i cut and paste those characters in thesql
database and paste onto java.. it is ??? in
questionmarks.. but when i paste them into excelThis is why the SELECT is not returning any results.
You need to set the character encoding set on your
statement and parameters for the characters to be
properly translated. Refer to the charsetName
parameter in the String class constructor in your API
docs and also to
$JDK_DOCS/guide/intl/encoding.doc.html in your JDK
documentation.
2000.. its shown as chinese chars again..Because Office programs are performing the same kind
of character translation with the appropriate MS APIs.
please heelppp~~Regards,
Tony "Vee Schade" Cookis it possible for you to show me some coding examples? i don't really understand what is to be done in order to set the char set and what does it really do.. tried reading up but still dun understand.. :(
pardon my shallow knowledge of java..
ok..
The thing is when i used an insert statement with chinese characters of GBK format hardcoded into the java servlet and then i use the insert statement to insert the chars into the database, it cannot be seen as a chinese word when i off the NJStar. and then it can be searched out with my current form of servlet.. below is my coding of the servlet..
note: i've set my html file to charset = GBK
//prototype of Search engine...
//workable for GBK input and output...
import java.io.*;
import java.io.OutputStream;
import java.io.IOException;
import javax.servlet.http.*;
import javax.servlet.ServletException;
import java.util.*;
import java.sql.*;
import java.nio.charset.Charset;
public class SearchBeta extends HttpServlet {
     private Vector musicDetails = new Vector();
     private String query = "";
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          query = req.getParameter ("T1");
          System.out.println("before:"+query);
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          query = req.getParameter ("T1");
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               out.println ("Sorry, no results matching your search can be found.");
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                         dbTitle = new String(dbTitle.getBytes("ISO-8859-1"),"GBK");
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                         dbArtist = new String(dbArtist.getBytes("ISO-8859-1"),"GBK");//correct translation.
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                         System.out.print(e);
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                         out.println("<tr>");
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                              out.println("<td><font color=\"Cornsilk\">"+dbTitle+"</font></td>");
                         out.println("</tr>");
                         out.println("<tr>");
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                              out.println("<td><font color=\"Cornsilk\">"+dbCompany+"</font></td>");
                         out.println("</tr>");
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                         out.println("</tr>");
                         System.out.println("company: "+ dbCompany);
                         out.println("</table></td>");
                    out.println("</tr>");
                    i++;
               out.println("</table>");
               out.println("</center>");
          out.println("</font>");
          out.println("</body>");
          out.println("</head>");
          out.println("</html>");
          out.close();
          //to remove all the elements from the Vector
          musicDetails.removeAllElements();
     //get Searched Music Details and store in Results object which is stored in musicDetails vector
     public void getResults (String type, String searchQuery) {
          try {
               Class.forName ("com.microsoft.jdbc.sqlserver.SQLServerDriver");
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                    String title = rs.getString("Song");
                    String company = rs.getString("Company");
                    String album = rs.getString("Album");
                    String image_loc = rs.getString("Image");
                    Results details = new Results (artist,title,company,album,image_loc);
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with the above servlet i created, i can search out the data in the database which i've inserted through the insert statement. I still can't search for things i've keyed into the database directly using NJStar..
thank you so much for helping.. really hope any one else who knows the answer to this will reply too... thank you all so much...
-KK

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Anybody got some advice on this approach?
This should be enough for now. I would be very thankful for any kind help, I really want my first project to be as good as possible, since I want to learn OOP and Java better.

- The chess board:
Currently, I have a class handling the drawing of the
board, getting the screen-coordinates, etc.. The
class "GameBoard" extends a JPanel and I overwrite
the "paintComponent"-method to draw the board.
I have a second class "Field" that stores
informations of one field: What color the field is,
which piece is placed on this field and which player
"owns" it. Also, each one of these "Field" is getting
passed its coordinates on the screen from
"GameBoard". This helps me later, when I want to
decide, if the field is clicked or not.
Now, is this a good way to implement the board and
the fields? I have another option, which would be,
that I throw out the class "GameBoard" and instead
have a "FieldHandler" class. Now, the class "Field"
would extend JPanel, overwrite "paintComponent" and
draw a square on the screen. "FieldHandler" gives
each "Field" the information, if it should be black
or white. "FieldHandler" would also calculate the x-
and y-coordinates for each field.
Is this method better? I don't really knowWhat I'd do: just paint a chessboard pattern from a static image. Can be loaded from a file, or can be generated once dynamically. Don't care at all about fields.
Have some pixel-to-field coordinate mapping somewhere. Should be nothing but a simple multiplication.
Have a List of chess pieces. Have those know what they look like (maybe using a delegate object which contains an image), have those know where they are and where they can go. When painting, iterate over the list, transform the coordinates to pixels, get the UI delegate and paint its image. Why bother calculating 64 fields if all you have are 32 pieces or less? And whether a field is black or white doesn't matter to the game.
When the user clicks onto the board, get the coordinates of the click and transform them to the field coordinates, that you can then look up in the list of figures. If you find one, you can still paint a marker onto the board and underneath the piece image.
This is what I'd do. Other approaches might make sense as well..

LOCATION FINDING without using GPS using J2ME (in gsm network)

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Hi,
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System.getProperty("IMSI")
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Is airdrop is avaiable on iphone4g n how to use airplay ... n something playing game like sufers subways its get stuck middle .. y is it so .. help me out..

is airdrop is avaiable on iphone4g n how to use airplay ... n something playing game like sufers subways its get stuck middle .. y is it so .. help me out..
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<Email Edited by Host>

Hi ChrisBell,
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second is it possible 2 create the UI using j2me ??
thank u

Hi,
the top bar management is always under the operating system control. You can use full screen mode to cover full screen, however some diveces can still show the bar. Another option is to use Game Canvas instead of Canvas which might on some devices utilize even "more full" screen mode.
Some manufacturers add special .jad properties to utilize really full screen.
Summary: this is really manufacturer/device dependent.
Of course you can build your own UI completely - simply using the Canvas and paint it on your own. There are several UIs available for Java ME. However the most comprehensive and free is probably the LWUIT supported directly by Oracle. See: [http://lwuit.java.net/|http://lwuit.java.net/] and/or [http://www.oracle.com/technetwork/java/javame/javamobile/download/lwuit/index.html|http://www.oracle.com/technetwork/java/javame/javamobile/download/lwuit/index.html]
Rada

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I need guidance on how to model a chess game that involves two human players. Since this a Java oriented game and I am a new user as well as a learner, I need to be guided on the number of classes that can be incorporated in this game as well as the substantial roles of each class. I have tried examining some of the classes to involve the Board class, Piece class, legal move checker which extends board as well as the GUI on which the entire game shall be run. I need guidance on how I can join all the classes as well as some hints on attributes and operations that shall be involved in these classes.
I have been thinking of sub classifying the piece class into sliding pieces and the non sliding pieces as well as representing pieces as images on the board. In my game, Enpassant rule is not operational, the pawn piece does not become updated at the end of the board and the castling rule does not apply too.
I need to have my players on the same computer not on different computers or the Internet.

As a new user/learner, you should try something a little less ambitious like checkers, and if thats too hard, Tic Tac Toe. It may sound like im joking about your abilitys, but creating Tic Tac Toe using classes for X's O's and the Board, will give you the basic understanding of how classes interact with each other, and how to design a basic object oriented game.
It's only a small step from Tic Tac Toe, to Chess IMHO since chess only adds more game logic rules, but the class scenario is going to function pretty much the same, only more methods and rules to follow. Once you reach the point of creating the chess game, it's only a matter of creating a basic piece thats extended by all the various piece types who define their own movement rules.
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Chess game programming

I have to create a text-based chess game between uppercase and lowercase letters against each other using a two-dimensional arrays.
1. I have to create the board and initialize the position of the letters.
2. I have to give the output of the initial state of the game, showing the board and the first positions of the letters.
3. I have to create the moves.(Meaning that i have to create an input to perform the entering moves)
And i have to make sure that with every bad input the program will to repeat the input....
If anybody of you have programmed a chess game like this before, i would appreciate any kind of help....
Edited by: 812599 on Nov 17, 2010 8:26 AM

mario.beka wrote:
meacod wrote:
812599 wrote:
I have to create a text-based chess game between uppercase and lowercase letters against each other using a two-dimensional arrays.
1. I have to create the board and initialize the position of the checkers.Just to give you a nudge - are you familiar with chess? What's the size of the board? How might that affect the structure you store your 'pieces' in? How will you represent pawns as opposed to kings, queens, rooks, and so forth?
Scratch out some ideas on paper,
Turn that into some pseudocode,
Write some Java,
Then come back to us if you have a specific question.Yeah that's the problem, cuz i have never played chess in my life....I'm just reading around now for the rules and movements of this game...in that case, don't bother.
A decent chess program requires in-depth knowledge of the game, knowledge only gained through years of playing it at competition level.
I've a small library of books about chess, have played it for going on 30 years, plus 15 years experience using Java professionally, and I'd not consider writing a chess playing program in Java as something I'd undertake on my own (and yes, I've studied the possibility of writing just that in a variety of languages I know about over the years, and even made a start a few times only to abandon it when the project became too big for me to handle).
If you're only looking to make a digital chessboard, that's a much simpler task and one that you can certainly attempt even without knowing the game (except maybe the starting positions and accepted icons for the pieces and the size and nomenclature for the board and its fields).
Start with that, then add rules validation as players move pieces. Start with large rules (like enforcing that pieces can only move legally, in itself a somewhat daunting task as there are several pitfalls and special rules depending on piece positions).
At this stage there's still no AI, no computer player option. That's where the real work sits, and it's very much a non-trivial task.

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Hi Friends
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END;
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You are playing with a 8*8 matrix.
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The King (exept the special move he can do only once - castling ?) can move only one square around, so X and Y can be -1 or +1
The Queen can move like a pawn, a bishop and a tower.
Francois

Chess game email

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Hello Sandbayrr:
Without more information, it is not possible to make constructive suggestions. You mentioned E-mail - what mail platform are you using? Are the E-mails from the same sender? The problem does not, on the surface, appear to be a browser related issue.
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Hi Everyone
I have finally completed the first launch of my AFCS chess game.
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Please have a try at http://www.happydaygames.com.au ( offcourse you might need to source an opponent as there are probably no players at the moment ). If you can't source an opponent there is also an example of a single-player Sudoku game I have developed on the site.

Thanks Aponnusa
It's great to have some positive feedback!
I have put a new feature in which allows you to challenge a player that is not online. An email is sent to the player for acceptance. Hopefully this makes it easier to find a game.
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Use j2me to develop a chinese chess game

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