java-programmer >>Javascript problem - I don't know what to do about it?!?!

Javascript problem - I don't know what to do about it?!?!

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- 1
  - writing email attachment file to diskI'm trying to capture an email attachment and write it to disk.
    I've coded the following lines in my attempt. The program seems
    to run and creates the local file alex99.pdf. However, when I
    tried to open it, it says it's corrupted and/or wasn't properly
    decoded. Any ideas?
    
    Properties props = new Properties();
    Session session = Session.getDefaultInstance(props, null);
    Store store = session.getStore("pop3");
    store.connect(host, username, password);
    Folder folder = store.getFolder("inbox");
    folder.open(Folder.READ_ONLY);
    Message message[] = folder.getMessages();
    for (int i = 0, n = message.length; i < n; i++) {
    System.out.println(i + ": " + message[i].getFrom() + "\t"
    + message[i].getSubject());
    Object obj = message[i].getContent();
    if (obj instanceof String) {
    System.out.println(">>>plain text");
    } else if (obj instanceof Multipart) {
    System.out.println("Multipart");
    Multipart mp = (Multipart) obj;
    System.out.println("mp count = " + mp.getCount());
    for (int j = 0, nn = mp.getCount(); j < nn; j++) {
    Part part = mp.getBodyPart(j);
    String disposition = part.getDisposition();
    if ((disposition != null)&& ((disposition.equals(Part.ATTACHMENT) ||
    (disposition.equals(Part.INLINE))))) {
    System.out.println("attachment");
    FileOutputStream fos = new FileOutputStream("alex99.pdf");
    part.writeTo(fos);
    } else if (disposition==null) {
    MimeBodyPart mbp = (MimeBodyPart)part;
    if (mbp.isMimeType("text/plain")) {
    System.out.println("text/plain");
    } else {
    System.out.println("other mime type");
    }................................
- 2
  - J2ME & EclipseI have just started playing with J2ME, using a software example I downloaded
    from http://www.garret.ru/~knizhnik/En_Home.htm#Shopper. I can successfully
    build the application and run it both in the emulator outside of eclipse
    using emulatorw, and also on my Nokia phone.
    
    I just can not run it within Eclipse, with or without debug. I get the
    following error message:
    
    Exception in thread "main" java.lang.UnsatisfiedLinkError:
    com.sun.midp.main.Configuration.getProperty0(Ljava/lang/String;)Ljava/lang/String;
    at com.sun.midp.main.Configuration.getProperty0(Native Method)
    at com.sun.midp.main.Configuration.getProperty(Configuration.java:32)
    at com.sun.midp.lcdui.Resource.<clinit>(Resource.java:30)
    at com.sun.midp.main.Main.initSystemLabels(Main.java:686)
    at com.sun.midp.main.Main.main(Main.java:103)
- 7
  - getDocumentBase and getCodeBase not recognized...Hi, Im having a slight problem.
    
    I am trying to load an image object with the code below, and I am NOT
    extending Applet in my class because I am working on an application.
    
    The problem is that getCodeBase AND getDocumentBase are not being
    recognized by my application, however I am sure that the required jars
    are in the build path... and that I've referenced them... most likely
    inapproprirately.
    
    My code is set up like this
    Base\
    Base\graphics\img.gifs.
    
    Code follows, I trimmed the imports mostly off, but the rest appear
    below the code...
    
    Thanks for your advice.
    
    import java.net.URL;
    import java.applet.Applet;
    
    ............
    String strImageUp = "graphics/up.gif";
    URL urlUp = getClass().getResource(strImageUp);
    Image imgUp = null;
    try {
    MediaTracker m = new MediaTracker(this);
    imgUp = getImage(getDocumentBase(), strImageUp);
    m.addImage(imgUp, 0);
    m.waitForAll();
    }
    catch (Exception e) {
    e.printStackTrace();
    }
    ................
    
    import javax.crypto.interfaces.PBEKey;
    import javax.imageio.*;
    import java.awt.image.*;
    import java.io.File;
    import java.io.IOException;
    import java.util.Vector;
    import java.awt.*;
    
    import javax.swing.*;
    import javax.swing.border.Border;
    
    import java.util.LinkedList;
    import java.util.ListIterator;
    import java.awt.event.ActionListener; //for buttons
    import java.awt.event.ActionEvent; //for button events
    import java.awt.event.KeyEvent; //for key shortcuts
    
    import java.math.*; //percentage rounding
- 7
  - reinventing the wheelhttp://www.ted.com/index.php/talks/view/id/162
    
    This is off topic, but Java folk will like find it amusing. It shows
    a Dutch invention to replace the wheel, various mechanical walking
    machines. It has a mechanical step counter, a sort of primitive finite
    state automaton..
    --
    Roedy Green Canadian Mind Products
    The Java Glossary
    http://mindprod.com
- 7
  - hide NullPointerExceptionI have a GUI which throws a nullpointerexception when things go wrong.
    Then it closes. That nullpointerexception is expected and I want it
    ignored since before that it has already informed the user that
    something has gone wrong and its closing. How can I do this? If I just
    put the part of the function throwing the exception within try/catch,
    it tends to hang. If I leave it as is, it throws the exception but
    closes fine. I just don't want the user to see that exception.
- 7
  - Implementing an interface in eclipseUsing IntelliJ, I would be able to implement an interface whilst having
    it open in the editor. You could open the context window using the
    keyboard and choose to implement interface and magically the
    implementation appears complete with the statement "... implements
    SomeInterface"
    
    Does anyone know how to do the same in eclipse so I don't have to open
    that New Class window and manually choose the interface?
- 7
  - please explain this simple constructmy instructor likes to use this construct in class but never really
    explained why/how it works:
    
    while (true)
    {
    if (something) return; // break from while
    }
    
    can someone shed some light how this works?
- 7
  - Override prepareRenderer()I've gathered that in order to change the background color of a row,
    one can either use the tablecellrenderer or can override the
    prepareRenderer() method. I have chosen to override the
    prepareRenderer() method. My question (and a reather silly one) is
    exactly how to call this method to then color your rows.
    
    I already have a jtable with is autogenerated by netbeans and all of
    the code I've seen, the jtable is created programmatically.
    
    Here is what I TRIED to do (any help is greatly appreciated):
    
    public void updateGUI(String newValue){
    DefaultTableModel errorTableModel = (DefaultTableModel)
    parentScreen.jTableErrors.getModel();
    int numRows = errorTableModel.getRowCount();
    numRows++;
    errorTableModel.setRowCount(numRows);
    parentScreen.jTableErrors.setModel(errorTableModel);
    Object newObjectError = (Object) newValue;
    parentScreen.jTableErrors.setValueAt(newObjectError, numRows - 1, 0);
    
    JTable coloredTable = new JTable( errorTableModel )
    {
    public Component prepareRenderer(
    TableCellRenderer renderer, int row, int column)
    {
    Component c = super.prepareRenderer(renderer, row, column);
    
    String message = (String) getValueAt(row, column);
    String[] dividedMsg = message.split(":");
    if(dividedMsg[0].equals("Error: ")){
    this.setBackground(Color.RED);
    }
    else{
    this.setBackground(Color.YELLOW);
    }
    
    return c;
    }
    };
    
    parentScreen.jTableErrors = coloredTable;
    
    }
- 7
  - poster or wallpaperHi all
    I need posters or wallpapers which is about programming and computer
    science, for hanging
    
    thanks
- 7
  - Does anyone know where I can get the source code to the utility JAR itself ?Or, failing that, JAVA source code to *A* JAR utility ?
    (I can deal with it being written in java)
- 7
  - synchronize vs gateI have a singleton in a web service that provides a collection and
    self-updates it on a periodic basis:
    
    doSelfUpdate()
    
    create temporary collection (time consuming)
    syncronize
    update temporary collection from current collection (fast)
    create temporary reference 'old' to current collection
    point current collection reference to temporary collection
    end syncronize
    do stuff with 'old' collection (time consuming)
    done
    
    getCollection()
    synchronize
    just waiting on monitor
    end synchronize
    return collection
    done
    
    It seems to me each thread accessing the getCollection method must
    wait on the monitor every time it is accessed -- which is not what I
    want. I just want to open and close the gate for a few milliseconds
    while the self-update is being done. What do y'all think about
    something like this:
    
    boolean isBusy=false;
    
    doSelfUpdate()
    create temporary collection
    isBusy=true;
    update temporary collection from current collection
    create temporary reference 'old' to current collection
    point current collection reference to temporary collection
    isBusy=false;
    do stuff with 'old' collection
    done
    
    getCollection()
    maxWait=10000
    waited=0
    while(isBusy && waited <maxWait) {
    waited+=500
    if(waited>=MaxWait) log error;
    wait 500
    }
    return collection
    done
    
    IMHO this means each thread consuming getCollection is a tiny bit
    slower because it has a condition that must be tested, but as a group
    they are not waiting in line for the monitor. Is this right?
- 7
  - Hot-deployment of EAR/JAR files using classloaders (on JBoss app server)Hi,
    I am trying the following scenario:
    
    - I deploy an app.ear into the jboss server.
    - app.ear invokes a session bean deployed separately (sessionbean.jar)
    - everything works fine
    - I modify sessionbean.jar
    - I redeploy it without restarting the server (hot deployment)
    
    When app.ear invokes the sessionbean, it refers to the previous instance of
    the sessionbean. And because I have replaced it, it does not find the
    class...
    
    Then I read on, and I find that if you write custom class loaders, you can
    load new versions of classes on the fly (dynamic loading).
    So I wrote a custom class loader, which works fine when I call a basic java
    library, but there does not seem to be a way of 'redeploying' this
    sessionbean.jar as a bean (you can't invoke it anymore with the home/remote
    interface)....
    
    Can someone help me here ? I am basically trying to redeploy beans without
    redeploying the app server and having them immediately rebind to whichever
    application needs to use them.
    
    Thanks
    
    Steph
- 10
  - Problem starting out with Java . . .Hey. Im new to Java, and am having a prroblem with the netbeans IDE.
    every time i try to import java.awt.* , I can't use any of the
    methods(like they don't exist). I can compile it fine, but when I try to
    run it, I get "exception in class main".
    
    Can anyone help me, please?
- 11
  - Q: Possible to auto-fallback back to MS JVM from Sun JVM ?Hi all.
    
    Ok, so it's no secret, MS can no longer distribute its Java VM with
    its OS'.
    
    Naturally, that didn't stop me from installing an old one so
    WindowsUpdate would see it and upgrade it to the last (MS) build:
    5.00.3810
    
    I also installed the latest SUN Java VM (1.4.2_03)
    
    *** Flash ***
    
    Woaaaah!! Just saw their "Law & Order" game
    (http://java.com/en/index.jsp)
    Gotta try that!
    
    *** End Flash ***
    
    So what I want in fact, is to use SUN's VM as default, but to
    automatically switch back to MS' VM for those sites that still use it
    (for example, my bank still uses it, so I can't issue payments if Sun
    is default -- annoying).
    
    Of course, this can be done manually in "Set Program Access and
    Defaults" in hte Window scontrol panel, but you have to select one or
    the other.
    
    Same with Sun's Java Plug-in control panel (Advanced tab).
    
    So... is there a way to perform an auto-fall-back to MS JVM when an
    applet cannot load/initialise with the Sun JVM ?
    
    Or create a list of site which must use MS instead of Sun?
    
    Any help appreciated.
    
    M.T.
- 12
  - How to simulate a busy taskHi everybody,
    
    I was trying to perform some tests in a multithreading application and
    I would like to simulate overloading. That is, I want to simulate
    threads performing a task that takes a certain time T. I have thought
    of the following possibilities:
    
    -Implement a method that sleeps during T milliseconds. Problem: this
    does not overload the computer, during those T milliseconds other
    agents can execute.
    
    -Implement a method that performs a busy wait (while(true){...}) and
    exits when T milliseconds have passed. Problem: there could be context
    switches in between, and so it could happen that another thread
    executes in the meantime (and that execution time should not count to
    decide when to terminate the busy wait).
    
    -Similar to the previous approach, but we try to count the milliseconds
    elapsed "by hand". That is, in every iteration we obtain the
    System.currentTimeMillis() and count as much as 1 millisecond (if it is
    really at least 1 millisecond greater than the value measured in the
    previous iteration). In this way, if the thread is interrupted while
    executing the method, nothing happens because we count at most 1
    millisecond per iteration. This does not work either too well, because
    more than 1 millisecond could have been elapsed between measures.
    
    So I'm not really sure if I can do this with some precision. If you
    have any suggestions, please let me know. Thanks in advance,
    
    S.

Author

Message

johnsonholding

Posted: 2006-3-27 10:27:00

Top

java-programmer, Javascript problem - I don't know what to do about it?!?! Here is the script I have in my page :


</script>

It opens a new window when the user clicks on a certain link.

Well, somewhere else in the page, I embeded a flash media object and
found out now that everytime the page opens, the pop up window opens
too which is NOT what I want. I want the Popup window to only open
when the user clicks on a text link (which it did work perfectly until
I put in the flash object).

So why is the flash object calling the popup window instead of just
playing like it is supposed to?

raisenero

Posted: 2006-3-27 13:20:00

Top

java-programmer >> Javascript problem - I don't know what to do about it?!?! I see this was cross-posted to comp.lang.javascript, which is the
proper place for your question. JavaScript is a different language
unrelated to the Java programming language.

johnsonholding@yahoo.com

Posted: 2006-3-27 21:59:00

Top

java-programmer >> Javascript problem - I don't know what to do about it?!?! Thanks, sorry about that.

Index ‹ java-programmer

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- 1
  - Get the best browser in the world.Get the best browser in the world.
    If you are still using "explorer" download Firefox - it will change
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  - Java rich client design patterns: where to find?Hi all,
    
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    I have been developing Swing applications for about 3 years and never
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    I think _effective_ is a very important word here. In fact, there are
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    - JGoodies: www.jgoodies.com
    - Martin Fowler home-page: www.martinfowler.com
    - Martin Fowler work-in-progress (Patterns of Enterprise Application
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    "It is our belief the only problem with Swing is that there are a
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    Thanks in advance,
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    > =====================
    > PARSING IN CURSOR #6 len=34 dep=0 uid=65 oct=42 lid=65
    tim=105493947922 hv=3913151867 ad='67f33cac'
    > ALTER SESSION SET SQL_TRACE = TRUE
    > END OF STMT
    > EXEC #6:c=0,e=519,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,tim=105493947908
    > =====================
    > PARSING IN CURSOR #4 len=48 dep=0 uid=65 oct=7 lid=65
    tim=105493978311 hv=3637529011 ad='67da3a90'
    > delete from PROPERTIES p where p.VERSION_ID = 28
    > END OF STMT
    > PARSE
    #4:c=15625,e=9852,p=0,cr=12,cu=0,mis=1,r=0,dep=0,og=1,tim=105493978298
    > EXEC #4:c=0,e=335,p=0,cr=1,cu=1,mis=0,r=1,dep=0,og=1,tim=105493978772
    > STAT #4 id=1 cnt=0 pid=0 pos=1 obj=0 op='DELETE (cr=1 pr=0 pw=0
    time=163 us)'
    > STAT #4 id=2 cnt=1 pid=1 pos=1 obj=51685 op='INDEX RANGE SCAN
    SYS_C007946 (cr=1 pr=0 pw=0 time=86 us)'
    > =====================
    > PARSING IN CURSOR #6 len=48 dep=0 uid=65 oct=7 lid=65
    tim=105493980587 hv=3637529011 ad='67da3a90'
    > delete from PROPERTIES p where p.VERSION_ID = 28
    > END OF STMT
    > PARSE #6:c=0,e=231,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,tim=105493980577
    > EXEC #6:c=0,e=259,p=0,cr=1,cu=1,mis=0,r=1,dep=0,og=1,tim=105493980952
    > STAT #6 id=1 cnt=0 pid=0 pos=1 obj=0 op='DELETE (cr=1 pr=0 pw=0
    time=160 us)'
    > STAT #6 id=2 cnt=1 pid=1 pos=1 obj=51685 op='INDEX RANGE SCAN
    SYS_C007946 (cr=1 pr=0 pw=0 time=85 us)'
    > =====================
    > PARSING IN CURSOR #5 len=94 dep=0 uid=65 oct=3 lid=65
    tim=105493993679 hv=2310065897 ad='6a3e5ca4'
    > select PROPERTY_NAME, VERSION_ID, PROPERTY_NAMESPACE from PROPERTIES
    p WHERE p.VERSION_ID = 28
    > END OF STMT
    > PARSE
    #5:c=15625,e=11137,p=0,cr=10,cu=0,mis=1,r=0,dep=0,og=1,tim=105493993668
    > EXEC #5:c=0,e=98,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,tim=105493993898
    > FETCH #5:c=0,e=146,p=0,cr=1,cu=0,mis=0,r=1,dep=0,og=1,tim=105493995306
    > STAT #5 id=1 cnt=1 pid=0 pos=1 obj=51685 op='INDEX RANGE SCAN
    SYS_C007946 (cr=1 pr=0 pw=0 time=94 us)'
    > =====================
    > PARSING IN CURSOR #6 len=35 dep=0 uid=65 oct=42 lid=65
    tim=105493997130 hv=4067503723 ad='68daac44'
    > ALTER SESSION SET SQL_TRACE = FALSE
    > END OF STMT
    > PARSE #6:c=0,e=155,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,tim=105493997120
    > EXEC #6:c=0,e=512,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,tim=105493997740
    
    Only thing that would make sense to me was if the two deletes and the
    select somehow were executed in different transactions. Would that make
    sense? If so how could this be possible?
    
    Thanks for *any* help in advance!
    
    Oliver
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    Jason
- 14
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