java-programmer >>does not opening websites: double loading pictures, help

does not opening websites: double loading pictures, help

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- 1
  - java.sun.com UP againAfter some 24 hours at least they are up again
- 1
  - Actionlisstenerhi
    
    i need to create an applet a GUI IfBut.java which contains three
    buttons, Red, Green and Blue
    which when clicked will fill the circle with the respective color.
    im stuck at the actionPerformed(ActionEvent e) & paint(Graphics g) {
    part...dun know wat to put...
    any ideas?
    
    import java.awt.*;
    import java.applet.*;
    import java.awt.event.*;
    public class Lab14 extends Applet implements ActionListener {
    Button b2, b1,b3;
    public void init() {
    Panel p = new Panel( );
    
    b1 = new Button( "Red" );
    b2 =new Button( "Green" );
    b3 = new Button( "Blue" );
    p.setLayout( new FlowLayout( ) );
    p.add( b1 );
    p.add( b2 );
    p.add( b3 );
    add( p );
    b1.addActionListener(this);
    b2.addActionListener(this);
    b3.addActionListener(this);
    }
    
    }
    
    public void actionPerformed(ActionEvent e)
    {
    
    }
    public void paint(Graphics g) {
    
    g.setColor (Color.red);
    g.fillOval(20,140,100,100);
    }
    }
- 6
  - JDBC javax.sql.RowSetListener API QuestionI'm implementing a TableModel for my Java Swing application that
    listens for the changes in a javax.sql.RowSet object so they can be
    displayed in a JTable. It seems there is a limitation in the
    RowSetListener API preventing my program from obtaining the information
    it needs to keep the JTable in sync with the RowSet.
    
    I can register a RowSetListener with the RowSet object. Whenever a row
    is updated, inserted or deleted, it's rowChanged(RowSetEvent event)
    method is called.
    
    The problem is that I am unable to distinguish between the three events
    (insertRow, updateRow or deleteRow) or obtain the relevant row number
    in my implementation of rowChanged(RowSetEvent event).
    
    The only thing the RowSetEvent object that gets passed into rowChanged
    seems to tell me is the source RowSet object of the event. I need to
    be able to tell which of the three events occured and the relevant row
    number so I can so I can notify the JTable by calling the appropriate
    fireTableRowsInserted(), fireTableRowsUpdated(), or
    fireTablesRowsDeleted() method.
    
    How do I obtain this information from the API? If there is a better
    group I should post this question to, please let me know.
    
    Thanks,
    
    Bruce
- 6
  - How to open Choice menu for an eventI want to know how to open the Choice menu when an event occured. an event
    could be actionevent, mouseevent, etc. Is there a function to call to cause
    the Choice menu to open up?
- 6
  - JAVAMAIL SMTP error 421Hi all,
    
    I've been looking at this problem for a while, browsing all possible
    resources for a possible explanation but no way.
    My problem is the following :
    
    I've got a JAVA application listening to messages falling on a
    MQSeries queue. The message falling on the queue contains all required
    information to compose a mail intended for some recipients. The
    application is connected to a mail server and is supposed to send the
    mail.
    In our development environment everything is fine and works properly.
    We are using Exchange server. I made several tests with some 3000
    messages falling on the queue and we got 3000 mails in our mail boxes.
    The program has been installed at a client site and there we run into
    trouble.
    After the fifth message has been sent, the program ends with an
    exception. It looks like the SMTP server had closed the connection
    with no apparent reason.
    
    The log looks like this :
    
    Wed Jun 23 14:59:49 CEST 2004 - spy3 - 5 tasks done.
    Wed Jun 23 14:59:50 CEST 2004 - alerter - MailError - Mail server
    error in execu
    ting a process.
    Error when sending a mail through Java Mail API.Can't send command to
    SMTP host;
    nested exception is:
    java.net.SocketException: Software caused connection abort:
    socket write error
    null
    com.misys.alerter.Spy$MailError: Error when sending a mail through
    Java Mail API
    .Can't send command to SMTP host;
    nested exception is:
    java.net.SocketException: Software caused connection abort:
    socket write
    error
    at com.misys.alerter.SpyMasterQ.doAction(SpyMasterQ.java:497)
    at com.misys.alerter.Spy.run(Spy.java:112)
    
    The line 497 is : try {mailer.sendMail(tmptitle, tmpbody,
    recipientTo,recipientDummy, recipientDummy);
    
    The class mailer fills in a mimeMessage and calls
    
    transport.sendMessage(message, message.getAllRecipients() ) ;
    
    which is where I loose control.
    
    The connection to the mail server is made through this method :
    
    public boolean connectSrv( String host, String user, String password)
    throws NoSuchProviderException, MessagingException {
    
    Properties props = new Properties();
    props.put("mail.smtp.connectiontimeout", "0" );
    props.put("mail.smtp.timeout", "0" );
    props.put("mail.debug", "true");
    session = Session.getDefaultInstance(props, null);
    transport = session.getTransport("smtp");
    transport.connect(host, user, password);
    /* store date time when connection occurs */
    dtconnected = new GregorianCalendar();
    
    return transport.isConnected();
    }
    
    I added the debug property to get more information. It shows an SMTP
    error 421.
    
    Here are some bits of output :
    
    DEBUG SMTP SENT: NOOP
    DEBUG SMTP RCVD: 250 2.0.0 OK
    
    DEBUG SMTP SENT: NOOP
    DEBUG SMTP RCVD: 250 2.0.0 OK
    
    DEBUG SMTP SENT: NOOP
    DEBUG SMTP RCVD: 421 Too many errors on this connection---closing
    
    DEBUG SMTP SENT: NOOP
    
    I have the feeling that something goes wrong on the server side but
    have no idea what.
    Has any of you already experienced such problem ?
    
    Thanks for your time reading this. Any help or suggestion will be
    highly appreciated.
    
    JC
- 6
  - java regular expression problemHi,
    
    I want to replace mulitple occurances of a string one after the another
    with a single string
    
    for eg .
    
    input : a hello b world c java abcabcabc
    output: a hello b world c java def
    
    I mean multiple occurances of pattern 'abc' with a single string 'def'.
    
    how can do this with JAVA regular expressions ?
    
    I tried replaceAll method in string class, but I dont know how to
    format regular expression.
    
    thanks
    Ranu
- 6
  - OT: mindless: Do you have a good name for a class that...?
    
    Tim Smith wrote:
    > Do you have a good name for a class that is both routes and transforms
    > a message?
    
    Yes, non-cohesive ;-). But this is OT for comp.lang.c anyway...
    
    Ed.
- 6
  - JVM error while compiling OOoHi folks,
    
    I just tried to upgrade my OpenOffice to the latest version (ports cvsupped
    yesterday) and got the following error:
    
    [...]
    
    regmerge ../unxfbsd.pro/bin/regcomp.rdb /
    /usr/tmp/usr/ports/german/openoffice-1
    .1/work/oo_1.1_src/solver/645/unxfbsd.pro/bin/udkapi.rdb
    merging registry
    "/usr/tmp/usr/ports/german/openoffice-1.1/work/oo_1.1_src/solve
    r/645/unxfbsd.pro/bin/udkapi.rdb" under key "/" in registry
    "../unxfbsd.pro/bin/
    regcomp.rdb".
    setenv CLASSPATH
    /usr/tmp/usr/ports/german/openoffice-1.1/work/oo_1.1_src/solver
    /645/unxfbsd.pro/bin/unoil.jar:/usr/tmp/usr/ports/german/openoffice-1.1/work/oo_
    1.1_src/solver/645/unxfbsd.pro/bin/java_uno.jar:/usr/tmp/usr/ports/german/openof
    fice-1.1/work/oo_1.1_src/solver/645/unxfbsd.pro/bin/ridl.jar:/usr/tmp/usr/ports/
    german/openoffice-1.1/work/oo_1.1_src/solver/645/unxfbsd.pro/bin/sandbox.jar:/us
    r/tmp/usr/ports/german/openoffice-1.1/work/oo_1.1_src/solver/645/unxfbsd.pro/bin
    /jurt.jar:/usr/tmp/usr/ports/german/openoffice-1.1/work/oo_1.1_src/solver/645/un
    xfbsd.pro/lib:/usr/local/jdk1.4.2/jre/lib/rt.jar:. && setenv
    LD_LIBRARY_PATH .
    :/usr/tmp/usr/ports/german/openoffice-1.1/work/oo_1.1_src/solenv/unxfbsd.pro/lib
    :/usr/local/jdk1.4.2/jre/lib/i386:/usr/local/jdk1.4.2/jre/lib/i386/client:/usr/l
    ocal/jdk1.4.2/jre/lib/i386/native_threads:../lib:/usr/tmp/usr/ports/german/openo
    ffice-1.1/work/oo_1.1_src/solver/645/unxfbsd.pro/lib:: && \
    regcomp -br ../unxfbsd.pro/bin/regcomp.rdb
    \
    -register \
    -r ../unxfbsd.pro/bin/setup_services.tmp
    \
    -l com.sun.star.loader.Java2 \
    
    -env:UNO_JAVA_COMPPATH=file:///usr/tmp/usr/ports/german/
    openoffice-1.1/work/oo_1.1_src/solver/645/unxfbsd.pro/bin \
    -c
    vnd.sun.star.expand:\$UNO_JAVA_COMPPATH/java_uno_acce
    ssbridge.jar
    #
    # HotSpot Virtual Machine Error, Internal Error
    # Please report this error to
    # email***@***.com mailing list
    #
    # Java VM: Java HotSpot(TM) Client VM (1.4.2-p6-root_17_jan_2004_19_33 mixed
    mod
    e)
    #
    # Error ID: 4F533F4253440E4350500063
    #
    
    Heap at VM Abort:
    Heap
    
    Here the portupgrade process hangs. I've got a regcomp process running
    that takes 100% cpu load. Are there any hints how to fix this?
    
    Installed jdk: jdk-1.4.2p6_1
    
    I see that p6_3 is already out. Would updating to this one help me in any
    way?
    
    cu
    Gerrit
    --
    _______________________________________________
    email***@***.com mailing list
    http://lists.freebsd.org/mailman/listinfo/freebsd-java
    To unsubscribe, send any mail to "email***@***.com"
- 8
  - 3rd Virtual Machine Research & Technology Symposium (VM '04)--------------------------------------------------------------
    3rd Virtual Machine Research & Technology Symposium (VM '04)
    May 6-7, 2004, San Jose, CA, USA
    http://www.usenix.org/vm04/progc/
    Sponsored by USENIX, in cooperation with ACM SIGPLAN
    --------------------------------------------------------------
    Dear Colleague,
    
    I'm writing to remind you that the VM '04 Early Bird Registration
    deadline is quickly approaching. Register by April 16 and save $150:
    http://www.usenix.org/vm04/progc/
    
    The 3rd Virtual Machine Research & Technology Symposium (VM '04) will be
    held May 6-7, 2004, in San Jose, CA.
    
    VM '04 is the place to network with other VM implementers and share
    research and advanced engineering techniques applicable to the
    development of Java and other Virtual Machines.
    
    This year's innovative program includes:
    
    --Keynotes by Mendel Rosenblum, Associate Professor of Computer Science,
    Stanford University, and Miguel de Icaza, co-founder and CTO of Ximian.
    
    --Fourteen papers on topics ranging from Virtual Machine Architecture
    and Performance, to Virtualization, Dynamic Techniques, and Virtual Grids.
    
    We offer group discounts for organizations sending 5 or more employees
    to VM '04.
    Please contact email***@***.com for more details.
    
    VM '04 promises to be an exciting meeting, presenting the best of
    current research on virtual machines. I hope you will join us in San
    Jose. Please visit the symposium Web site at
    http://www.usenix.org/vm04/progc/ to see the full program and register
    today!
    
    Sincerely,
    Tarek S. Abdelrahman, University of Toronto
    VM '04 Program Chair
    
    NOTICE: The VM '04 Hotel Room Rate has just been reduced to $109
    single/double, $129 triple, and $139 quad. Visit
    http://hyattsanjose.hyatt.com/groupbooking/usnx to easily reserve your
    hotel room within the USENIX room block.
    -------------------------------------------------------------
    SAVE THE DATE!
    3rd Virtual Machine Research & Technology Symposium (VM '04)
    May 6-7, 2004, San Jose, CA, USA
    http://www.usenix.org/vm04/progc/
    Sponsored by USENIX, in cooperation with ACM SIGPLAN
    --------------------------------------------------------------
- 8
  - JMS ConnectionCan anybody tell me how to keep JMS connection alive.
- 8
  - A cool new 3d chat program!http://www.imvu.com/catalog/web_registration.php?userId=168695
- 8
  - Design tool for "multi-thread"I am looking for a tool to design/describe the relation/sequence/interaction
    amount threads.
    
    What kind of diagram do poeple normally use to do the analysis/design/model
    on multi-thread application?
    
    Any suggestion for a design tool?
    
    thanks
- 12
  - StreamCorruptedI have a server which writes various objects to an ObjectOutputStream
    over a TCP connection to the client in response to requests. In the
    case of certain objects, the client throws StreamCorruptedException.
    
    Various objects present no problem, but certain objects do. Problem
    started with an instance of this class...
    
    class MMState implements java.io.Serializable {
    Vector clientRq = new Vector();
    HashMap userMap = new HashMap();
    HashMap muSessMap = new HashMap();
    public String toString () {
    return "MMState:"
    +"\nuserMap:\n"+userMap
    +"\nmuSessMap:\n"+muSessMap
    +"\nclientRq:\n"+clientRq;
    }
    }
    
    ----------------
    
    I can send it successfully if I do toString() first. But sending object
    causes client to throw the exception. Variations are described in
    comments embedded in server code fragment below.
    
    Interestingly, If I run the client on a separate system (JVM build
    1.3.1_04-b02), it works OK. It only fails on a system with JVM build
    1.4.2-b28. It matters not which system the server runs on, or whether
    it is on the same box as the client.
    
    The client code fragment from the superclass which does the readObject
    is pasted below, FWIW.
    
    I speculated that perhaps a timing issue is causing the object to be
    modified in another thread during the writeObject. But I've used
    synchronized to eliminate this possibility, to no avail.
    
    ---------------------------------------------------------------------------
    SERVER SIDE
    
    public boolean processSpecificRequest (Object o, boolean endBatch) {
    synchronized (mother.userMap) {
    M.moanln(M.XACTION+M.IPC+M.TRACE+4,"Msg from
    ("+clientID+"): "+o);
    Object stat = null;
    if (o instanceof MMWatchGroup) {
    MMWatchGroup wg = (MMWatchGroup)o;
    if (userService == null) stat = "Not logged in.";
    else {
    MMUserService us = (MMUserService)userService; //
    better be!
    us.muWatchList.addElement(wg);
    stat = "Watch for "+wg+" added";
    }
    } else if (o instanceof RTUAIntervalTrack) stat = qU(o,false);
    else if (o instanceof RouteDescription) stat = qU(o,false);
    else if (o instanceof MUTell) stat = qU(o,true);
    else if (o instanceof String) {
    String s = (String)o;
    if (s.equals("sdump")) {
    M.moanln(M.XACTION+M.IPC+M.INFO,"sdump request");
    // !! various forms of Exception occur in receiver (client) w/ commented
    cases,
    // including EOF and StreamCorrupted (don't know why).
    // Works ok with toString() as work-around.
    //stat = mms;
    //stat = mms.clientRq; // chokes it!!
    //stat = mms.userMap; // coughs (EOF) 1st time, then OK
    //stat = mms.muSessMap; // OK
    stat = mms.toString(); // this is OK
    } else if (s.equals("splat")) {
    M.moanln(M.XACTION+M.IPC+M.INFO,"splat request");
    stat = "Splat, Joe\n";
    } else
    stat = "Unrecognized MobileMon request: "+s;
    } else
    stat = "Unrecognized MobileMon request: "+o;
    if (stat == null) {
    stat = "RQ processor return null stat!";
    M.moanln(M.XACTION+M.IPC+M.ERROR,stat.toString());
    }
    M.moanln(M.XACTION+M.IPC+M.TRACE,"MM
    response:\n"+stat.toString());
    try {
    oos.writeObject(stat); oos.flush();
    }
    catch (IOException ioe) {
    M.moanln(M.XACTION+M.ERROR,"Cough. write: "+ioe);
    }
    // !! handle endbatch intelligently, move response to
    processing above
    // !! provide response method in this class
    // !! enqueue object which includes xaction object +
    MCSession obj
    }
    return true;
    }
    ---------------------------------------------------------------------
    CLIENT SIDE FRAGMENT
    
    public Object receive (int timeoutms) {
    if (!connected) return null;
    try {
    cSock.setSoTimeout(timeoutms);
    } catch (SocketException se) {
    M.moanln("Failed to set client socket timeout: "+se);
    return null;
    }
    Object reply = null;
    try {
    try {
    reply = ois.readObject();
    } catch (InterruptedIOException iioe) {
    M.moanln(M.IPC+M.TRACE+5,"Socket timeout");
    reply = null; // !!maybe should send special object for this
    }
    } catch (Exception e) {
    M.moanln(M.IPC+M.ERROR,"Exception in read object: "+e);
    return e;
    }
    //M.moanln(M.IPC+M.TRACE,"Reply: "+reply);
    return reply;
    }
- 14
  - source code for ojdbc14.jarIs the source code for oracle driver available
- 16
  - pls suggest a J2ME tutorialHello friends.
    
    Can anyone please suggest a good J2ME tutorial?
    
    Thanks
    Denis

Author

Message

Mactele

Posted: 2004-2-6 21:29:00

Top

java-programmer, does not opening websites: double loading pictures, help Hello

My internet explorer does not explore some websites. It looks like it
download pictures 2 times. In majority it works - j can see website after
double downloading but sometimes it shows me the web for a moment and then
everything dissapeares and j see white surface. J think it is sure it has
opened it.
HELP ME
How to eliminate this double loading and not showing websites?
And how to install java? it is imposible for it too. ?

Maciej

Index ‹ java-programmer

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- 1
  - Distinct ID Number Per Object?I have a case where I'll need distinct and printable names to use in a
    reference table. I'd like to make it so each object, whether it's of the
    same class as any other object or not, can produce a distinct number. It
    looks like if I get the hashcode for any object, the JVM attempts to give
    each object a unique hashcode, but it doesn't seem to guarantee it.
    
    Is there any way to get a unique string or number for each object that is
    created by a particular JVM?
    
    Thanks!
    
    Hal
- 2
  - Message IDsRoedy Green wrote:
    > Java mail generates message ids like this:
    > <25116828.1067897095828.JavaMail.Administrator@roedy>
    >
    > Eudora like this:
    > <email***@***.com>
    >
    > Just what are these?
    >
    > 1. are they a hash?
    >
    > 2. are they supposed to be globally unique.
    >
    > 3. are they supposed to be the same if you send the same mail twice?
    >
    > 4. are they a timestamp?
    >
    
    From the RFC822 (http://www.faqs.org/rfcs/rfc822.html) is says that:
    1) Message-ID is part of the optional-field.
    2) chapter 4.6.1:
    >>>
    4.6.1. MESSAGE-ID / RESENT-MESSAGE-ID
    
    This field contains a unique identifier (the local-part
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    The uniqueness of the message identifier is guaranteed by the
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    machine readable and not necessarily meaningful to humans. A
    message identifier pertains to exactly one instantiation of a
    particular message; subsequent revisions to the message should
    each receive new message identifiers.
    <<<
    
    And each mail client I have used generate a some what unique version
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    You can look into the JavaMail source (part of J2E source) for the
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- 3
  - JTable selectHello,
    
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- 4
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    fine, but when I try to run it, I get:
    
    Exception in thread "main" java.lang.NoClassDefFoundError: org/
    objectweb/asm/Type
    at net.sf.cglib.core.TypeUtils.parseType(TypeUtils.java:180)
    at net.sf.cglib.core.KeyFactory.<clinit>(KeyFactory.java:66)
    at Test.main(Test.java:8)
    
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    $CGLIB_LIB/junit.jar KeySample
    
    The call in net.sf.cglib.core.KeyFactory which is triggering this is:
    
    private static final Type KEY_FACTORY =
    TypeUtils.parseType("net.sf.cglib.core.KeyFactory");
    
    The call at net.sf.cglib.core.TypeUtils.parseType is:
    
    public static Type parseType(String s) {
    return Type.getType(map(s));
    }
    
    map is a private method which effectively transforms the input into
    "L"+s.replace('.', '/'))+";" (i.e. "Lnet/sf/cglib/core/KeyFactory;").
    I've traced through this with Eclipse, so I'm absolutely certain that
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    and my trace, I don't think it's getting as far as calling
    Type.getType, though.
    
    If I add the lines:
    
    org.objectweb.asm.Type t = Type.getType("Lnet/sf/cglib/core/
    KeyFactory;");
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    The fun part is that I get the same result if I re-compile the
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    java -classpath .:$JAVA_HOME/lib:$CGLIB_LIB/cglib-nodep-2.1_3.jar
    KeySample
    
    I suspect that there's something truly screwed up with my environment,
    but I haven't seen any other overt misbehavior like this. Any ideas?
- 5
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- 10
  - What is a type error?Marshall <email***@***.com> wrote:
    +---------------
    | Joachim Durchholz wrote:
    | > Actually SQL has references - they are called "primary keys", but they
    | > are references nevertheless.
    |
    | I strongly object; this is quite incorrect. I grant you that from the
    | 50,000 foot level they appear identical, but they are not.
    +---------------
    
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    record. Other than that constraint, many databases treat them exactly
    the same as non-primary keys [e.g., can form indexes on them, etc.].
    
    +---------------
    | To qualify as a reference, there need to be reference and dereference
    | operations on the reference datatype; there is no such operation is SQL.
    +---------------
    
    Not in "ANSI SQL92", say, but there might be in most SQL databases!
    [See below re OIDs. Also, SQL:1999 had a "REF" type that was essentially
    and OID.]
    
    +---------------
    | Would you say the relational algebra has references?
    +---------------
    
    Don't confuse "SQL" & "relational algebra"!! You'll get real
    relational algebraists *way* bent out of shape if you do that!
    
    +---------------
    | > (Some SQL dialects also offer synthetic "ID" fields that are
    | > guaranteed to remain stable over the lifetime of a record.
    |
    | Primary keys are updatable; there is nothing special about them.
    +---------------
    
    I think he's probably talking about "OIDs" (object IDs). Most
    current SQL-based databases provide them, usually as a normally-
    invisible "system column" that doesn't show up when you say
    "SELECT * FROM", but that *does* appear if you say "SELECT oid, *",
    and may be used as a "primary" key even on tables with no actual
    primary key:
    
    rpw3=# select * from toy limit 4;
    c1 | c2 | c3 | upd
    --------+-------+--------------------------------+-----
    fall | tape | My Favorite Thanksgiving | 16
    xmas | book | My Favorite Christmas | 2
    xmas | video | The Grinch who Stole Christmas | 4
    summer | book | Unusual 4ths of July | 17
    (4 rows)
    
    rpw3=# select oid, * from toy limit 4;
    oid | c1 | c2 | c3 | upd
    -------+--------+-------+--------------------------------+-----
    19997 | fall | tape | My Favorite Thanksgiving | 16
    19998 | xmas | book | My Favorite Christmas | 2
    19999 | xmas | video | The Grinch who Stole Christmas | 4
    20000 | summer | book | Unusual 4ths of July | 17
    (4 rows)
    
    rpw3=# select * from toy where oid = 19998;
    c1 | c2 | c3 | upd
    ------+------+-----------------------+-----
    xmas | book | My Favorite Christmas | 2
    (1 row)
    
    rpw3=# insert into toy values ('fall','book','Glory Road');
    INSERT 32785 1
    
    rpw3=# select oid, * from toy where oid = 32785;
    oid | c1 | c2 | c3 | upd
    -------+------+------+------------+-----
    32785 | fall | book | Glory Road | 21
    (1 row)
    
    rpw3=#
    
    See <http://www.postgresql.org/docs/8.1/static/datatype-oid.html>
    for how PostgreSQL treats OIDs [including some critical limitations].
    
    -Rob
    
    -----
    Rob Warnock <email***@***.com>
    627 26th Avenue <URL:http://rpw3.org/>
    San Mateo, CA 94403 (650)572-2607
- 11
  - XML tags in JSPHi,
    
    I need to parse and transform xml in a jps. I have un variable that is
    an InputStream that contains the XML.
    
    I tried standard library and xtags library with no luck.
    
    <c:out value="${eo.repositoryItem.dataSource.inputStream}" /> show me
    that it is an inputStream
    
    anf I tried
    
    <xtags:parse reader="${eo.repositoryItem.dataSource.inputStream}" />
    xtags version
    
    <x:parse xml="${eo.repositoryItem.dataSource.inputStream}" /> jstl version
    
    What's wrong ?
    
    thanks
    
    Frederic
- 12
  - Conditional CompileTor Iver Wilhelmsen <email***@***.com> wrote:
    > Graham Matthews <email***@***.com> writes:
    >
    > > Try compiling the above code on a non OS-X platform. It will complain
    > > that it can't find classes referenced in the "use_an_apple_extension"
    > > bit.
    >
    > Unless it's a lot of code, use reflection (though you lose the
    > compile-time checks). Or invoke a class you compile once on the Mac
    > and ship as a .class for inclusion when building later.
    
    I have been waiting for someone to suggest reflection. The cost of
    using reflection is that I lose static typing. Moreover its a heavy
    weight way of getting conditional compilation don't you think. To
    my mind a simple conditional compilation scheme would be far
    more desirable.
    
    graham
- 13
  - New Mobile Phone forumHello Guys,
    
    This is an awsome place, its nice to be here
    
    Thanks,
    Rajen
    
    http://www.mobileuserforum.info
    
    Ps. i run this generic mobile site called
    http://www.mobileuserforum.info, we are looking for moderators, please
    get in touch with me if any one of you is interested.
- 14
  - Print via Command LineHello NG.
    
    I'm trying to write a tool which is able to print a PostScript documents via
    the command line. The call I'm making is the following:
    
    String s = "copy /b " + filename + " lpt1:";
    rt.exec(s);
    
    This is commented by the interpreter as follows:
    
    java.io.IOException: CreateProcess: copy /b
    J:\Tmp\KyoceraMita\PostScript\Philipp.prn.tmp lpt1: error=2
    at java.lang.Win32Process.create(Native Method)
    at java.lang.Win32Process.<init>(Win32Process.java:66)
    at java.lang.Runtime.execInternal(Native Method)
    at java.lang.Runtime.exec(Runtime.java:566)
    at java.lang.Runtime.exec(Runtime.java:428)
    at java.lang.Runtime.exec(Runtime.java:364)
    at java.lang.Runtime.exec(Runtime.java:326)
    at PrintPostScript.print(PrintPostScript.java:82)
    at PrintPostScript.main(PrintPostScript.java:38)
    
    Error = 2 means, that the file or something else is missing. The problem is:
    The same command typed into my command line (I'm using W2k3) produces the
    desired result. What am I doing wrong? Thanks in advance,
    
    Philipp Ciechanowicz
- 15
  - "Compiler" variablesHi,
    
    Is there in java a possibility to define "compiler"-variables, for
    example to except some code parts from the compilation?
    
    If so, how does it work?
    
    --
    Oliver Hirschi
    http://www.FamilyHirschi.ch