Convert Unicode characters to ASCII

Hi,
I need to convert few Unicode characters in a text file to ASCII ..Pls help help to get a java program to convert the few Unicode characters and output to a different text file with Ascii .

No idea i just did google search hope this might help you
public class UnicodeCast {
  public static void main(String[] args) {
    // Simple arithmetic on chars - VERY BAD for internationalization!
    System.out.println("'a' + 1 = " + (char) ('a' + 1));
    // Truncate characters by casting to byte (16-bit to 8-bit casting)
    char yen = '\u00a5'; // Japanese Yen
    char aeAcute = '\u01FC'; // Roman AE with acute accent
    System.out.println("Yen as byte: " + (byte) yen);
    System.out.println("AE' as byte: " + (byte) aeAcute);
    System.out.println("Yen as byte to char: " + (char) (byte) yen);
    System.out.println("AE' as byte to char: " + (char) (byte) aeAcute);
    // Convert ints to chars
    int iYen = 0xa5;
    int iaeAcute = 0x01fc;
    System.out.println("Yen from int = " + (char) iYen);
    System.out.println("AE' from int = " + (char) iaeAcute);
}

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    import java.awt.Point;
    import java.awt.Button;
    import java.awt.Font;
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    import java.awt.FlowLayout;
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    import javax.swing.JPanel;
    import javax.swing.JLabel;
    import javax.swing.JTextField;
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    import javax.swing.JScrollPane;
    import javax.swing.JOptionPane;
    import javax.swing.JList;
    import javax.swing.DefaultListModel;
    import javax.swing.JMenuBar;
    import javax.swing.JMenu;
    import javax.swing.JMenuItem;
    import javax.swing.JPopupMenu;
    import java.net.Socket;
    import java.io.InputStreamReader;
    import java.io.BufferedReader;
    import java.io.PrintWriter;
    import java.io.IOException;
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    System.exit(0);
    return;
    fileMenu.add(exitMenuItem);
    menuBar.add(fileMenu);
    helpMenu.setText("Help");
    aboutMenuItem.setText("About");
    aboutMenuItem.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent e) {
    aboutDialog.setDoubleBuffered(true);
    aboutDialog.showMessageDialog(frame,
    "Chat Server and Client were originally written by Ray Toal and were found at \n http://www.technocage.com/~ray/viewsource.jsp?java/networking/ChatServer.java and \n http://www.technocage.com/~ray/viewsource.jsp?java/networking/ChatClient.java. \n\n Math Chatter and all revisions have been done by William Ready.",
    "About Math Chatter Server and Client version 0.3",
    JOptionPane.INFORMATION_MESSAGE);
    helpMenu.add(aboutMenuItem);
    menuBar.add(helpMenu);
    // -----------> End Menu
    // -----------> Popup Menus
    // -----------> Message Area Popup Menu
    connectPopupMenuItem.setText("Connect");
    connectPopupMenuItem.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent e) {
    showWhoopsDialog();
    disconnectPopupMenuItem.setText("Disconnect");
    disconnectPopupMenuItem.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent e) {
    chatDisconnect();
    clearTextMenuItem.setText("Clear text");
    clearTextMenuItem.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent e) {
    messageArea.setText("");
    exitPopupMenuItem.setText("Exit");
    exitPopupMenuItem.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent e) {
    frame.dispose();
    System.exit(0);
    messageAreaPopupMenu.add(connectPopupMenuItem);
    messageAreaPopupMenu.add(disconnectPopupMenuItem);
    messageAreaPopupMenu.add(clearTextMenuItem);
    messageAreaPopupMenu.add(exitPopupMenuItem);
    messageArea.addMouseListener(messageAreaPopupListener);
    // -----------> End Message Area Popup Menu
    // -----------> User Area Popup Menu
    pingPopupMenuItem.setText("Ping User");
    pingPopupMenuItem.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent e) {
    //System.out.println("Yo yo yo");
    disconnectUserPopupMenuItem.setText("Disconnect User");
    disconnectUserPopupMenuItem.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent e) {
    if (userNamesList.getSelectedValue() != null) {
    //System.out.println("Yo yo yo");
    out.println("DISCONNECTUSER " +userNamesList.getSelectedValue().toString());
    //disconnectUserPopupMenuItem.setEnabled(false);
    disconnectUserPopupMenuItem.setVisible(false);
    disconnectAllUsersPopupMenuItem.setText("Disconnect All Users");
    disconnectUserPopupMenuItem.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent e) {
    if (userNamesList.getSelectedValue() != null) {
    //System.out.println("Yo yo yo");
    out.println("DISCONNECTALLUSERS");
    //disconnectUserPopupMenuItem.setEnabled(false);
    disconnectAllUsersPopupMenuItem.setVisible(false);
    userAreaPopupMenu.add(pingPopupMenuItem);
    userAreaPopupMenu.add(disconnectUserPopupMenuItem);
    userAreaPopupMenu.add(disconnectAllUsersPopupMenuItem);
    userNamesList.addMouseListener(userAreaPopupListener);
    // -----------> End User Area Popup Menu
    // -----------> End Popup Menus
    // -----------> Layout GUI
    textField.setEditable(false);
    textField.requestDefaultFocus();
    messageArea.setEditable(false);
    sendTextPanel.setLayout(new FlowLayout());
    sendTextPanel.add(textField);
    sendButton.setLabel("Send");
    sendButton.setEnabled(false);
    sendTextPanel.add(sendButton);
    clearButton.setLabel("Clear");
    sendTextPanel.add(clearButton);
    buttonPanel.setLayout(new FlowLayout());
    buttonPanel.add(buttonLabel);
    infinityButton.setLabel("\u221e");
    buttonPanel.add(infinityButton);
         thetaButton.setLabel("\u03b8");
    buttonPanel.add(thetaButton);
    limitButton.setLabel("lim");
    buttonPanel.add(limitButton);
    thereforeButton.setLabel("\u2234");
    buttonPanel.add(thereforeButton);
    userNamesList.setVisibleRowCount(26);
    userNamesList.setFixedCellWidth(110);
    JScrollPane nameTextScrollPane = new JScrollPane(userNamesList);
    JScrollPane messageAreaScrollPane = new JScrollPane(messageArea);
    displayPanel.setLayout(new FlowLayout());
    displayPanel.add(messageAreaScrollPane);
    displayPanel.add(nameTextScrollPane);
    frame.getContentPane().add(sendTextPanel, "North");
    frame.getContentPane().add(displayPanel, "Center");
    frame.getContentPane().add(buttonPanel, "South");
    frame.pack();
    // ---------------> Add Listeners
    textField.addKeyListener(new KeyListener() {
    public void keyPressed(KeyEvent e){ }
    public void keyTyped(KeyEvent e){
    if (e.getKeyChar() == KeyEvent.VK_UP) {
    if (sentMessageIterator.hasNext()) {
    textField.setText((String)sentMessageIterator.next());
    if (e.getKeyChar() == KeyEvent.VK_DOWN) {
    if (sentMessageIterator.hasPrevious()) {
    textField.setText((String)sentMessageIterator.previous());
    if (e.getKeyChar() == KeyEvent.VK_ENTER) {
    String text = textField.getText();
    if (text != null && !(text.equals(""))) {
    sentMessageList.addFirst(textField.getText());
    sentMessageIterator = sentMessageList.listIterator();
    out.println(textField.getText());
    textField.setText("");
    public void keyReleased(KeyEvent e){}
    sendButton.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent e) {
    out.println(textField.getText());
    textField.setText("");
    textField.requestFocus();
    clearButton.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent e) {
    textField.setText("");
    textField.requestFocus();
    infinityButton.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent e) {
    textField.setText(textField.getText() +"\u221e");
    textField.requestFocus();
    thetaButton.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent e) {
    textField.setText(textField.getText() +"\u03b8");
    textField.requestFocus();
    limitButton.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent e) {
    String limit = JOptionPane.showInputDialog(frame,
    "Enter the value that the variable approaches. \n If the value is infinity, type in inf. \n (Note: the variable name is irrelevant)",
    "Value that variable approaches",
    JOptionPane.QUESTION_MESSAGE);
    if (limit != null && limit.equalsIgnoreCase("inf"))
    textField.setText(textField.getText() +"lim [x->\u221e] ");
    else if (limit != null)
    textField.setText(textField.getText() +"lim [x->" +limit +"] ");
    textField.requestFocus();
    thereforeButton.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent e) {
    textField.setText(textField.getText() +"\u2234");
    textField.requestFocus();
    // -------------> End Listeners
    // -------------> End GUI
    * Prompt for and return the address of the server.
    private String getServerAddress() {
    return JOptionPane.showInputDialog(
    frame,
    "Enter IP Address of the Server:",
    "Welcome to the Chatter",
    JOptionPane.QUESTION_MESSAGE);
    private void showWhoopsDialog() {
    JOptionPane.showMessageDialog(frame,
    "Unfortunately this feature has not been implemented yet. \n The only way to connect currently is to exit the program \n and start it again",
    "Whoops!",
    JOptionPane.ERROR_MESSAGE);
    private void chatDisconnect() {
    messageArea.append("You have disconnected from the Chat Server\n");
    textField.setEditable(false);
    messageArea.setEnabled(false);
    userNamesList.setEnabled(false);
    fileMenu.requestFocus();
    out.println("DISCONNECT");
    * Prompt for and return the desired screen name.
    private String getName() {
    return JOptionPane.showInputDialog(
    frame,
    "Choose a screen name:",
    "Screen name selection",
    JOptionPane.PLAIN_MESSAGE);
    private String getPassword() {
    return JOptionPane.showInputDialog(
    frame,
    "Type in your password:",
    "Password Input",
    JOptionPane.PLAIN_MESSAGE);
    * Connects to the server then enters the processing loop.
    private void run() throws IOException {
    // Make connection and initialize streams
    String serverAddress = getServerAddress();
    if (serverAddress != null && !(serverAddress.equals(""))) {
    Socket socket = new Socket(serverAddress, 9001);
    in = new BufferedReader(new InputStreamReader(
    socket.getInputStream()));
    out = new PrintWriter(socket.getOutputStream(), true);
    // Process all messages from server, according to the protocol.
    while (true) {
    try {
    String line = in.readLine();
    if (line.startsWith("SUBMITNAME")) {
    out.println(getName());
              } else if (line.startsWith("NAMEACCEPTED")) {
    textField.setEditable(true);
              out.println("LISTUSERS");
    sendButton.setEnabled(true);
    //messageArea.setEnabled(true);
    } else if (line.startsWith("SUBMITPASSWORD")) {
    out.println(getPassword());
    } else if (line.startsWith("GRANTEDADMIN")) {
    isAdmin = true;
    //disconnectUserPopupMenuItem.setEnabled(true);
    disconnectUserPopupMenuItem.setVisible(true);
    disconnectAllUsersPopupMenuItem.setVisible(true);
    } else if (line.startsWith("DISCONNECT")) {
    sendButton.setEnabled(false);
    return;
    } else if (line.startsWith("USERLIST")) {
              StringTokenizer st = new StringTokenizer(line.substring(8), " ");
              while (st.hasMoreTokens()) {
              usersHashSet.add(st.nextToken());
    listModel.removeAllElements();
    for (Iterator i = usersHashSet.iterator(); i.hasNext(); ) {
              listModel.addElement(i.next());
    } else if (line.startsWith("USERJOIN")) {
              String userJoinName = line.substring(8).trim();
              usersHashSet.add(userJoinName);
              listModel.addElement(userJoinName);
    } else if (line.startsWith("USERQUIT")) {
              String userQuitName = line.substring(8).trim();
              usersHashSet.remove(userQuitName);
    listModel.removeElement(userQuitName);
    } else if (line.startsWith("MESSAGE")) {
    messageArea.setFont(new Font("Lucida Sans", Font.PLAIN, 12));
    messageArea.append(line.substring(8) + "\n");
    catch (Exception e) {
    //e.printStackTrace();
    return;
    * Runs the client as an application with a closeable frame.
    public static void main(String[] args) throws Exception {
    ChatClient client = new ChatClient();
    client.frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    client.frame.setLocation(200, 100);
    client.frame.show();
    client.run();
    class messageAreaPopupListener extends MouseAdapter {
    public void mousePressed(MouseEvent e) {
    maybeShowPopup(e);
    public void mouseReleased(MouseEvent e) {
    maybeShowPopup(e);
    private void maybeShowPopup(MouseEvent e) {
    if (e.isPopupTrigger()) {
    messageAreaPopupMenu.show(e.getComponent(),
    e.getX(), e.getY());
    class userAreaPopupListener extends MouseAdapter {
    public void mousePressed(MouseEvent e) {
    maybeShowPopup(e);
    public void mouseReleased(MouseEvent e) {
    maybeShowPopup(e);
    private void maybeShowPopup(MouseEvent e) {
    if (e.isPopupTrigger()) {
    userAreaPopupMenu.show(e.getComponent(),
    e.getX(), e.getY());

    Yes, the code is large, isn't it. It is a good idea, when you have a problem you can't solve, to remove unnecessary code. When the problem disappears, then you know the code you just removed was probably the source of the problem.
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  • Insert Unicode Characters Into Oracle 8.1.5

    Hello,
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    JDK 1.2.1
    Oracle8i 8.1.6.2.0 JDBC Drivers for use with JDK 1.2.x for Solaris
    I'm running into a problem with insert Unicode characters into Oracle via the JDBC driver. As you can see above, I am using the Oracle 8.1.6.2.0 JDBC driver because it is the first driver with supports the JDK 1.2.x. So I think I should be okay.
    I can retrieve data with special characters from Oracle by calling the getBytes() method from the ResultSet with all special characters being intact. I am using getBytes because calling getString() would throw the following exception: "java.sql.SQLException(): Fail to convert between UTF8 and UCS2: failUTF8Conv". However, with that value that I just retrieved, or any other data with special characters (unicode) in which I try to insert into Oracle does not get converted properly.
    What appears to be happening is that data with special characters (unicode), are not being treated as a single double byte character, but rather two single byte characters. Thus, R|ckschlagventil becomes RC<ckschlagventil once it is inserted. (Hopefully, my example will be rendered properly).
    According to all documentation that I have found, the JDBC driver should not have any problem with converting UCS2 Java Strings to Oracle's UTF8 character set.
    I have set Oracle's NLS_NCHAR_CHARACTERSET to UTF8. I am also setting the environment variable NLS_LANG to AMERICAN_AMERICA.UTF8. Perhaps there is some other environment setting in which I am missing?
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    null

    Import has a lot of options, so it depends on what you want to do.
    C:\> imp help=y
    will show you all possible options. An example of full import :
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    Message was edited by:
    Paul M.
    ...and there is always [url http://download-uk.oracle.com/docs/cd/F49540_01/DOC/index.htm]The documentation

  • Direct Execution of query having Unicode Characters

    Direct Execution of query having Unicode Characters
    Hi All,
    In my application I am firing a Select Query having Unicode characters in Where Clause under condition like '%%'
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    Application funcationality is working fine for ANSI characters and getting the result of Select properly.
    But in case of Unicode Characters in VC it says 'No Data Found'.
    I know where the exact problem is in my code. But not getting the exact solution for resolving my issue...
    Here with I am adding my code snippet with the comments of what i understand and what i want to understand...
    DBPROCESS Structure used in the functions,_
    typedef struct
    HENV hEnv;
    HDBC hDbc;
    HSTMT hStmt;
    char CmdBuff[[8192]];
    char RpcParamName[[255]];
    SQLINTEGER SpRetVal;
    SQLINTEGER ColIndPtr[[255]];
    SQLINTEGER ParamIndPtr[[255]];
    SQLPOINTER pOutputParam;
    SQLUSMALLINT CurrentParamNo;
    SQLUSMALLINT OutputParamNo;
    SQLUSMALLINT InputParamCtr;
    SQLINTEGER BatchStmtNo;
    SQLINTEGER CmdBuffLen;
    short CurrentStmtType;
    SQLRETURN LastStmtRetcode;
    SQLCHAR SqlState[[10]];
    int ShowDebug;
    SQLCHAR* ParameterValuePtr;
    int ColumnSize;
    DBTYPE DatabaseType;
    DRVTYPE OdbcDriverType;
    BLOCKBIND *ptrBlockBind;
    } DBPROCESS;
    BOOL CDynamicPickList::GetResultSet(DBPROCESS *pDBProc, bstrt& pQuery, short pNumOdbcBindParams, COdbcBindParameter pOdbcBindParams[], CQueryResultSet& pQueryResultSet)
         int               lRetVal,
                        lNumRows;
         bstrt               lResultSet;
         wchar_t               lColName[[256]];     
         SQLUINTEGER          lColSize;
         SQLSMALLINT          lColNameLen,
                        lColDataType,
                        lColNullable,
                        lColDecDigits,                         
                        lNumResultCols;
         wchar_t               lResultRow[[32]][[256]];
    OdbcCmdW(pDBProc, (wchar_t *)pQuery); *//Query is perfectly fine till this point all the Unicode Characters are preserved...*
         if ( OdbcSqlExec(pDBProc) != SUCCEED )
              LogAppError(L"Error In Executing Query %s", (wchar_t *)pQuery);          
              return FALSE;
    Function OdbcCmdW_
    //From this point have no idea what is exactly happening to the Unicode Characters...
    //Actually i have try printing the query that gets stored in CmdBuff... it show junk for Unicode Characters...
    //CmdBuff is the Char type Variable and hence must be showing junk for Unicode data
    //I have also try printing the HexaDecimal of the query... I m not getting the proper output... But till i Understand, I think the HexaDecimal Value is perfect & preserved
    //After the execution of this function the call goes to OdbcSqlExec where actual execution of qurey takes place on DB
    SQLRETURN OdbcCmdW( DBPROCESS p_ptr_dbproc, WCHAR      p_sql_command )
         char *p_sql_commandMBCS;
         int l_ret_val;
         int l_size = wcslen(p_sql_command);
         int l_org_length,
    l_newcmd_length;
    p_sql_commandMBCS = (char *)calloc(sizeof(char) * MAX_CMD_BUFF,1);
    l_ret_val = WideCharToMultiByte(
                        CP_UTF8,
                        NULL,                         // performance and mapping flags
                        p_sql_command,          // wide-character string
                        -1,                         // number of chars in string
                        (LPSTR)p_sql_commandMBCS,// buffer for new string
                        MAX_CMD_BUFF,                    // size of buffer
                        NULL, // default for unmappable chars
                        NULL // set when default char used
    l_org_length = p_ptr_dbproc->CmdBuffLen;
    l_newcmd_length = strlen(p_sql_commandMBCS);
    p_ptr_dbproc->CmdBuff[[l_org_length]] = '\0';
    if( l_org_length )
    l_org_length++;
    if( (l_org_length + l_newcmd_length) >= MAX_CMD_BUFF )
    if( l_org_length == 0 )
    OdbcReuseStmtHandle( p_ptr_dbproc );
    else
    strcat(p_ptr_dbproc->CmdBuff, " ");
         l_org_length +=2;
    strcat(p_ptr_dbproc->CmdBuff, p_sql_commandMBCS);
    p_ptr_dbproc->CmdBuffLen = l_org_length + l_newcmd_length;
    if (p_sql_commandMBCS != NULL)
         free(p_sql_commandMBCS);
    return( SUCCEED );
    Function OdbcSqlExec_
    //SQLExecDirect Requires data of Unsigned Char type. Thus the above process is valid...
    //But i am not getting what is the exact problem...
    SQLRETURN OdbcSqlExec( DBPROCESS *p_ptr_dbproc )
    SQLRETURN l_ret_val;
    SQLINTEGER l_db_error_code=0;
         int     i,l_occur = 1;
         char     *token_list[[50]][[2]] =
    {     /*"to_date(","convert(datetime,",
                                       "'yyyy-mm-dd hh24:mi:ss'","1",*/
                                       "nvl","isnull" ,
                                       "to_number(","convert(int,",
                                       /*"to_char(","convert(char,",*/
                                       /*"'yyyymmdd'","112",
                                       "'hh24miss'","108",*/
                                       "sysdate",     "getdate()",
                                       "format_date", "dbo.format_date",
                                       "format_amount", "dbo.format_amount",
                                       "to_char","dbo.to_char",
                                       "to_date", "dbo.to_date",
                                       "unique","distinct",
                                       "\0","\0"};
    char          *l_qry_lwr;  
    l_qry_lwr = (char *)calloc(sizeof(char) * (MAX_CMD_BUFF), 1);
    l_ret_val = SQLExecDirect( p_ptr_dbproc->hStmt,
    (SQLCHAR *)p_ptr_dbproc->CmdBuff,
    SQL_NTS );
    switch( l_ret_val )
    case SQL_SUCCESS :
    case SQL_NO_DATA :
    ClearCmdBuff( p_ptr_dbproc );
    p_ptr_dbproc->LastStmtRetcode = l_ret_val;
    if (l_qry_lwr != NULL)
         free(l_qry_lwr);
    return( SUCCEED );
    case SQL_NEED_DATA :
    case SQL_ERROR :
    case SQL_SUCCESS_WITH_INFO :
    case SQL_STILL_EXECUTING :
    case SQL_INVALID_HANDLE :
    I do not see much issue in the code... The process flow is quite valid...
    But now i am not getting whether,
    1) storing the string in CmdBuff is creating issue
    2) SQLExecDirect si creating an issue(and some other function can be used here)...
    3) Odbc Driver creating an issue and want some Client Setting to be done(though i have tried doing some permutation combination)...
    Any kind of help would be appreciated,
    Thanks & Regards,
    Pratik
    Edited by: prats on Feb 27, 2009 12:57 PM

    Hey Sergiusz,
    You were bang on target...
    Though it took some time for me to resolve the issue...
    to use SQLExecDirectW I need my query in SQLWCHAR *, which is stored in char * in my case...
    So i converted the incoming query using MultibyteToWideChar Conversion with CodePage as CP_UTF8 and
    then passed it on to SQLExecDirectW...
    It solved my problem
    Thanks,
    Pratik...
    Edited by: prats on Mar 3, 2009 2:41 PM

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