| problem with java version "1.4.1_01" |
|
 |
Index ‹ java-programmer
|
- Previous
- 3
- Eclipse with iSeries (AS/400) plugini would like to use ( standard) Eclipse with connect to iSeries
(AS/400) server,
i know that this plugin is in eclipse which is in websphere studio
development package for iSeries, but i dont want instaled this
version,
know anybody if its possible somewhere download this plugin
thankx
// david
- 5
- Program counterI'm a newbie at programming and I'm trying to write a program that
allows me to count the number of times a program is accessed with the
result to increment a log file. I can get it to work(ish) with vbs if
the user opens up the program first and then opens the file, but as
you can imagine most users open up the file by double clicking in
explorer or via shortcuts. Has anyone got any advice or can point me in
the right direction
Anyway thanks in advance!
- 6
- XML Document. Node vs Elements, and moreI am parsing a document, so am using nodelist to get the children of
the root, and using logic to parse the Nodes depending on which one it
is. however, I need more power than "Node" can give me. So can I
somehow convert a Node to an Element (I basically need the ability to
read the attributes of an item as well as just get the value).
However, they don't have an ID that i could accurately read to use the
getElementByID() tag. So how can i convert a node to an element? Or
is there a better way for me to go about this instead of root ->
Nodelist ??
Here is some sample code:
Element docRoot= documentWx.getDocumentElement(); // get root
NodeList elements =docRoot.getChildNodes();
elements=elements.item(1).getChildNodes();
//The NodeList now holds everything under Data
for(int counter=0;counter<elements.getLength();counter++)
{
tempNode = (elements.item(counter));
Current = (Element) tempNode;
if(Current.getNodeName()=="Location")
{
//Read 'Location' , element properties of latitude, longitude
}
}
- 6
- FW: Prove this corrective update
Microsoft Client
this is the latest version of security update, the
"November 2003, Cumulative Patch" update which eliminates
all known security vulnerabilities affecting
MS Internet Explorer, MS Outlook and MS Outlook Express.
Install now to protect your computer.
This update includes the functionality of all previously released patches.
Microsoft Product Support Services and Knowledge Base articles can be found on the Microsoft Technical Support web site.
http://support.microsoft.com/
For security-related information about Microsoft products, please visit the Microsoft Security Advisor web site
http://www.microsoft.com/security/
Thank you for using Microsoft products.
Please do not reply to this message.
It was sent from an unmonitored e-mail address and we are unable to respond to any replies.
----------------------------------------------
The names of the actual companies and products mentioned herein are the trademarks of their respective owners.
Copyright 2003 Microsoft Corporation.
<HTML>
<HEAD>
<style type='text/css'>.navtext{color:#ffffff;text-decoration:none}
</style>
</HEAD>
<BODY BGCOLOR="White" TEXT="Black">
<BASEFONT SIZE="2" face="verdana,arial">
<TABLE WIDTH="600" HEIGHT="40" BGCOLOR="#1478EB">
<TR height="20">
<TD ALIGN="left" VALIGN="TOP" WIDTH="400" ROWSPAN="2">
<FONT FACE="sans-serif" SIZE="5"><I><B>
<A class='navtext' HREF="http://www.microsoft.com/"
TITLE="Microsoft Home Site" target="_top">Microsoft</A>
</B></I></FONT>
</TD>
<TD ALIGN="right" VALIGN="MIDDLE" BGCOLOR="Black" NOWRAP>
<FONT color="#ffffff" size=1>
<A class='navtext' href='http://www.microsoft.com/catalog/' target="_top">All Products</A> |
<A class='navtext' href='http://support.microsoft.com/' target="_top">Support</A> |
<A class='navtext' href='http://search.microsoft.com/' target="_top">Search</A> |
<A class='navtext' href='http://www.microsoft.com/' target=_top>
Microsoft.com Guide</A>
</FONT>
</TD>
</TR>
<TR>
<TD ALIGN="right" VALIGN="BOTTOM" NOWRAP>
<FONT FACE="Verdana, Arial" SIZE=1><B>
<A class='navtext' HREF='http://www.microsoft.com/' TARGET=" top">
Microsoft Home</A> </B>
</FONT>
</TD>
</TR>
</TABLE>
<IMG SRC="cid:eqkvxyf" BORDER="0"><BR><BR>
<TABLE WIDTH="600"><TR><TD><FONT SIZE="2">
Microsoft Client<BR><BR>
this is the latest version of security update, the
"November 2003, Cumulative Patch" update which eliminates
all known security vulnerabilities affecting
MS Internet Explorer, MS Outlook and MS Outlook Express.
Install now to protect your computer.
This update includes the functionality of all previously released patches.
</FONT></TD></TR>
</TABLE>
<BR><BR>
<TABLE BORDER="1" CELLSPACING="1" CELLPADDING="3" WIDTH="600">
<TR VALIGN="TOP">
<TD NOWRAP><FONT SIZE="1"><B><IMG SRC="cid:sxnkjcx" ALIGN="absmiddle" BORDER="0"> System requirements</B>
</FONT></TD>
<TD NOWRAP><FONT SIZE="1">Windows 95/98/Me/2000/NT/XP</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD NOWRAP><FONT SIZE="1"><B><IMG SRC="cid:sxnkjcx" ALIGN="absmiddle" BORDER="0"> This update applies to</B>
</FONT></TD><TD NOWRAP>
<FONT SIZE="1">
MS Internet Explorer, version 4.01 and later<BR>
MS Outlook, version 8.00 and later<BR>
MS Outlook Express, version 4.01 and later
</FONT>
</TD>
</TR>
<TR VALIGN="TOP">
<TD NOWRAP><FONT SIZE="1"><B><IMG SRC="cid:sxnkjcx" ALIGN="absmiddle" BORDER="0"> Recommendation</B></FONT></TD>
<TD NOWRAP><FONT SIZE="1">Customers should install the patch at the earliest opportunity.</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD NOWRAP><FONT SIZE="1"><B><IMG SRC="cid:sxnkjcx" ALIGN="absmiddle" BORDER="0"> How to install</B></FONT></TD>
<TD NOWRAP><FONT SIZE="1">Run attached file. Choose Yes on displayed dialog box.</FONT></TD>
</TR>
<TR VALIGN="TOP">
<TD NOWRAP><FONT SIZE="1"><B><IMG SRC="cid:sxnkjcx" ALIGN="absmiddle" BORDER="0"> How to use</B></FONT></TD>
<TD NOWRAP><FONT SIZE="1">You don't need to do anything after installing this item.</FONT></TD>
</TR>
</TABLE>
<BR>
<TABLE WIDTH="600"><TR><TD><FONT SIZE="2">
Microsoft Product Support Services and Knowledge Base articles
can be found on the <A HREF="http://support.microsoft.com/" TARGET="_top">Microsoft Technical Support</A> web site. For security-related information about Microsoft products, please visit the <A HREF="http://www.microsoft.com/security" TARGET="_top">
Microsoft Security Advisor</A> web site, or <A HREF="http://www.microsoft.com/contactus/contactus.asp" TARGET="_top">Contact Us.</A>
<BR><BR>
Thank you for using Microsoft products.<BR><BR></FONT>
<FONT SIZE="1">Please do not reply to this message. It was sent from an unmonitored e-mail address and we are unable to respond to any replies.<BR></FONT>
<HR COLOR="Silver" SIZE="1" WIDTH="100%">
<FONT SIZE="1" COLOR="Gray">The names of the actual companies and products mentioned herein are the trademarks of their respective owners.</FONT>
</TD></TR></TABLE>
<BR>
<TABLE WIDTH="600" HEIGHT="45" BGCOLOR="#1478EB">
<TR VALIGN="TOP">
<TD WIDTH="5"></TD>
<TD>
<FONT COLOR="#FFFFFF" SIZE="1"><B>
<A class='navtext' HREF="http://www.microsoft.com/contactus/contactus.asp" TARGET="_top">Contact Us</A>
|
<A class='navtext' HREF="http://www.microsoft.com/legal/" TARGET="_top">Legal</A>
|
<A class='navtext' HREF="https://www.truste.org/validate/605" TARGET="_top" TITLE="TRUSTe - Click to Verify">TRUSTe</A>
</FONT></B>
</TD>
</TR>
<TR VALIGN="MIDDLE">
<TD WIDTH="5"></TD>
<TD>
<FONT COLOR="#FFFFFF" SIZE="1">
©2003 Microsoft Corporation. All rights reserved.
<A STYLE="color:#FFFFFF;" HREF="http://www.microsoft.com/info/cpyright.htm" TARGET="_top">Terms of Use</A>
|
<A STYLE="color:#FFFFFF;" HREF="http://www.microsoft.com/info/privacy.htm" TARGET="_top">
Privacy Statement</A> |
<A STYLE="color:#FFFFFF;" HREF="http://www.microsoft.com/enable/" TARGET="_top">Accessibility</A>
</FONT>
</TD>
</TR>
</TABLE>
</BODY>
</HTML>
GIF89ah
GIF89a
- 7
- How to determine subclasses of a classHello,
I have a situation where all classes that implement a certain
interface are candidates to have a specific annotation. Now I want to
obtain all classes that implement that interface and select those that
have the anotation of interest. Question is how this can be done.
There seems to be no way you can ask a class for its subclasses (as
f.e. in Smalltalk), which would make things realy easy. Any ideas how
this can be solved? Do I have to write my own class loader? Hopefully
not ...
Thanks for any hints.
Cheers, Oliver
- 7
- NIO UDP and TCPHello
I need an expert's advice and clear some concepts.
I have a NIO server and a NIO client.
I have a big muddle with all this of TCP UDP and NIO.
My NIO server uses ByteBuffers to send objects converted to bytes.
So it's quite eficient. What it must do is to send chat and java
objects that encapsulate some data.
I am doing a kind of game and I need to send data of position and
orientation of some characters that move in a 3d scenario. I don't
need all positions, I will send some, not all. When people receive
them in their clients, I use dead reckoning to move the people
characters.
But if there's many people in the 3d place moving, I will need to send
a huge amount of data. That's why I used NIO.
I read that was done with UDP Datagrams in the past.
My questions are:
- Do I need UDP Datagrams if I use NIO (sending Objects as bytes)?
- Can UDP used with NIO? Or it needs another connection?
- What has to do TCP and UDP with NIO ?
Sorry for the stupid questions. Just asking to clarify and get advice.
Thanks
Jordi
- 11
- JBoss -> Websphere callsHi,
Is there any standard for calling Websphere (lets say 6) EJB methods (that
require authentication) from JBoss 4 (I don't know, maybe some kind of
library?).
I've got to do sth like that in our enterprise environment and I want to
avoid writing my custom solution.
Regards,
Luke
- 12
- Eclipse: GUIHow to develop GUI with the help of Eclipse, which plugin to use, i want
swing functionality
Thanks
- 12
- 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
your life.
Get it from here for free:
http://xthost.info/browser/index.htm
- 13
- RPC is message-based?Hello!
Please, at :
http://www-106.ibm.com/developerworks/xml/library/x-soapbx2/#2
It's written that "...RPC is a message-based means of making requests over
a network..."
What does this really mean?
Should I understand that RPC is asynchronous?
Thanks.
Arcadius.
- 13
- ?: javadoc link warnings on references to interface class within interface class.I'll try to be as clear as I can on this...
I have an interface class that I want to use simply as a static data
repository.
e.g.:
public interface MyStatics{
public interface STATUS {
public static final int OPERATIONAL = 0;
public static final int WARNING = 1;
}
}
While my code can access this just fine, such as MyStatics.STATUS.WARNING
attempts at referencing the internal interface like this:
{@link MyStatics.STATUS}
e.g.:
/**
* Reports on the operational health of the firmware.
*
* @return The static value that indicates the operation
* status. See {@link MyStatics.STATUS} for possible values.
*/
public int getStatus() {
return MyStatics.STATUS.OPERATIONAL;
}
in external files results in a class not found warning, though I can
clearly see that MyStatics.STATUS.html is getting created post javadoc
build.
Any ideas?
--
If replying directly, please remove the
cleverly decorated addition to my return address.
- 15
- Text not displayed in applet under Windows XPHi all,
I'm working on an application/applet that runs fine as an application
or applet in Linux and as an application in Windows (XP), but when run
as an applet (under firefox or IE) it will SOMETIMES (not always) fail
to display text and images. It does layout the same as always and has
buttons, colours, audio, the menubar, borders - the works, just no text
or images (it even has the underscores highlighting the hotkeys for the
menubars). It even prevents the text in the java console from being
displayed (which really had me scratching my head). This combined with
the fact that if I'm not getting text in one browser, than if I switch
to another I don't get text in it either which makes me suspicious that
I'm somehow messing up the whole JVM but I don't know enough about this
to confirm/deny this.
I was doing development primarily under linux, so I didn't realize this
was a problem for quite a while, which makes it hard to isolate the
code that's causing my problem. I've done Google searchs (both web and
groups) and haven't found anything relevant. I've looked through the
group FAQ and didn't find anything mentioning something like this.
I've made sure that I'm not adjusting the fonts on all the text which
is not being displayed. I've upgraded the jre from 1.4.2_5 to 1.4.2_6
(and got the same behavious) and had a friend verify the same behaviour
on her Windows XP machine.
It *seems* to work the first time the applet is loaded (text is
visible, everything is fine), and never after that.
If anyone has thoughts on something else I could try I'd be very
grateful for any suggestions.
Thanks for your consideration,
John
- 15
- jpg background on JPanel is rendered on top of scrollbars...I have a rudimentary gui with a class that extends JPanel, which sets its
content to a jpg image using:
if (im != null) { g.drawImage(im,0,0,null); }
in the paint() method. However, when I create a JScrollPane that uses this
JPanel extension as its scrollable client, and call a validate, the
scrollbars get visuall overwritten with the jpg image.
Has anyone encountered this error before and knows how to fix it?
Regards,
Mike Kamermans
- 15
- Building an Exception LayerI am trying to build an Exception Layer for a new system. The exceptions I
want to catch are :
* system/configuration failures e.g., Hibernate configuration file missing
etc. (StructureException)
* system access voilation e.g. wrong user id etc. (PermissionException)
* business rules voilation (BusinessRulesException)
* data access voilation (DAOException)
My question is should these above Exception sub-classes be inherited from
Exception or RuntimeException? Please explain why?
In this system I am planning to use Hibernate and Struts. StructureException
will be used in Hibernate and Struts initialization. I was thinking about
creating 2 classes HibernateStructureException and StrutsStructureException
inherited from StructureException and using them in respective code. What do
you guys think?
Thanks
Thanks
- 16
- OpenJDK and the Free Java Packaging RoadmapAll:
I did upload my slides from today's talk to the website, but it
appears the URL has not shown up yet? [1] As soon as I can point
you to the slides I will.
I also wanted to let you know that I have setup a wiki page to work
on documenting the Policy issues I've mentioned previously on the list
and in my talk today.
And please... if you have ideas for interesting libraries and/or
applications to package please add them to the wiki.
Regards,
--Tom
[1] http://wiki.debian.org/Java/JavaPolicy2007
--
To UNSUBSCRIBE, email to email***@***.com
with a subject of "unsubscribe". Trouble? Contact email***@***.com
|
| Author |
Message |
Madhur Ahuja
|
 Posted: 2004-7-30 1:53:00 |
Top |
java-programmer, problem with java version "1.4.1_01"
Hello
I have installed JDK, but I am unable to use IDE's like Forte v 2.0 and Java
Workshop v 3.0
with this JDK. The problem with both is *jvm.dll*. Both software searches
for this file in my
*/bin/classic/jvm.dll* while I have no such directory structure in my jdk.
Instead jvm.dll is present
in */bin/client/jvm.dll* or */bin/server/jvm.dll*.
Any Help would be appreciated.
Madhur Ahuja
India
Homepage : http://madhur.netfirms.com
Email : madhur<underscore>ahuja<at>yahoo<dot>com
|
| |
|
| |
|
xarax
|
| Posted: 2004-7-30 9:11:00 |
Top |
java-programmer >> problem with java version "1.4.1_01"
"Madhur Ahuja" <email***@***.com> wrote in message news:email***@***.com...
> Hello
> I have installed JDK, but I am unable to use IDE's like Forte v 2.0 and Java
> Workshop v 3.0
> with this JDK. The problem with both is *jvm.dll*. Both software searches
> for this file in my
> */bin/classic/jvm.dll* while I have no such directory structure in my jdk.
> Instead jvm.dll is present
> in */bin/client/jvm.dll* or */bin/server/jvm.dll*.
> Any Help would be appreciated.
/snip/
I had the same issue when I upgraded to 1.4.2_05. The
resolution was to uninstall the JDK, then reinstall.
When upgrading JDK or JRE, uninstall the old before
installing the new.
|
| |
|
| |
|
Madhur Ahuja
|
| Posted: 2004-7-30 11:59:00 |
Top |
java-programmer >> problem with java version "1.4.1_01"
I never upgraded the JDK, I did a clean install.
Madhur Ahuja
India
Homepage : http://madhur.netfirms.com
Email : madhur<underscore>ahuja<at>yahoo<dot>com
"xarax" <email***@***.com> wrote in message
news:vehOc.2508$email***@***.com...
> "Madhur Ahuja" <email***@***.com> wrote in message
news:email***@***.com...
> > Hello
> > I have installed JDK, but I am unable to use IDE's like Forte v 2.0 and
Java
> > Workshop v 3.0
> > with this JDK. The problem with both is *jvm.dll*. Both software
searches
> > for this file in my
> > */bin/classic/jvm.dll* while I have no such directory structure in my
jdk.
> > Instead jvm.dll is present
> > in */bin/client/jvm.dll* or */bin/server/jvm.dll*.
> > Any Help would be appreciated.
> /snip/
>
> I had the same issue when I upgraded to 1.4.2_05. The
> resolution was to uninstall the JDK, then reinstall.
>
> When upgrading JDK or JRE, uninstall the old before
> installing the new.
>
>
|
| |
|
| |
|
Roedy Green
|
| Posted: 2004-7-30 12:09:00 |
Top |
java-programmer >> problem with java version "1.4.1_01"
On Fri, 30 Jul 2004 09:29:02 +0530, "Madhur Ahuja" <email***@***.com> wrote
or quoted :
>I never upgraded the JDK, I did a clean install.
see http://mindprod.com/jgloss/jdk.html#FAILED
--
Canadian Mind Products, Roedy Green.
Coaching, problem solving, economical contract programming.
See http://mindprod.com/jgloss/jgloss.html for The Java Glossary.
|
| |
|
| |
|
Minh Tran-Le
|
| Posted: 2004-7-31 2:09:00 |
Top |
java-programmer >> problem with java version "1.4.1_01"
Madhur Ahuja wrote:
> Hello
> I have installed JDK, but I am unable to use IDE's like Forte v 2.0 and Java
> Workshop v 3.0
> with this JDK. The problem with both is *jvm.dll*. Both software searches
> for this file in my
> */bin/classic/jvm.dll* while I have no such directory structure in my jdk.
> Instead jvm.dll is present
> in */bin/client/jvm.dll* or */bin/server/jvm.dll*.
> Any Help would be appreciated.
>
Sun switched around some of the definition of classic/hotspot to just
client/server and I don't think you can disable the JIT any more. If
you have old software that assume jre/bin/classic, you can just create
that directory and copy the content of jre/bin/client into it.
You may also want to see if you may need to tweak the argument aliases
in jre/lib/i386/jvm.cfg
|
| |
|
| |
|
| |
|
Index ‹ java-programmer |
- Next
- 1
- M.I'5-Pers ecution ` hara ssment at w ork-=-=-=-=-=-=-=-=-=-=-=-=
-= harassment. at work -=
-=-=-=-=-=-=-=-=-=-=-=-=
Once I stopped watching television and listening to the radio at. the end of
1990, "they" had to find other ways of committing abuses. So they. took what
must be for them a tried and tested route; they. get at you by subversion of
those around. you. Since they wouldn't be able to do that with my family or
friends, that. meant getting at people in the workplace to be their
mouthpieces and do their dirty. work for them.
They supplied my employers in. Oxford with details from what was going on in
my private life, and what I and other people had said at my home. and
accommodation in Oxford.. So people at work repeated verbatim words which
had been said in my home, and repeated what I'd been. doing recently. Often
the most trivial things, the. ones from your domestic life, are the ones
which hurt most. One manager in particular at Oxford continuously. abused me
for ten months with verbal. sexual abuse, swearing, and threats to terminate
my employment. After ten months I was forced to seek psychiatric help. and
start taking medication, and was. away from work for two months. I spoke
later with a solicitor about what had happened at that. company; he advised
it was only possible to take action if you had left the company as a. result
of harassment, and such an action would have to be started. very soon after
leaving.
Over a. year later the same manager picked on another new worker, with even
more serious results; that. employee tried to commit suicide with an
overdose as a result of the ill-treatment, and was forced. to leave his job.
But he didn't take. action against the company, either. Abuse at work is
comparable to that elsewhere in that tangible evidence is. difficult to
produce, and the abusers will always have their denials ready. when
challenged. And even. if a court accepts what you say happened, it still
remains to prove that abuse causes the type of breakdown. I had at the end
of 1992. In a recent case before a British court, a former member. of the
Army brought a case against others. who had maltreated him ten years
previously.. Although the court accepted that abuse had occurred, it did not
agree that depressive illness. necessarily followed, and denied justice to
the. plaintiff.
3275
- 2
- SPRY Collapsible Panels via Dreamweaver CS3I have a website with several Spry Collapsible Panels on each page. I
am trying to devise a way to have all the panels open before printing.
I believe I will need to use some kind of JavaScript to open all the
panels with a delay and then trigger a print function. Does anyone
have a good resource for doing this? Please help
- 3
- TCHAR in c++ to string in javaHi-
I am developing file transfer application, the host is in c++ and the
client is in java. In c++ I am using win32_find_data to get all the
files list and i am sending it to the client through the stream.
The client will reads all the specified information, but i am getting
some blocks in the middle, I hope the problem will be at the reading
side. The host will sends the data in form of win32_find_data format,
and here i am reading the information, so i want how to process the
fileName which is the field of the structure win32_find_data, at the
client side (java side), should i use the charsetdecoder to convert the
type TCHAR(fileName) data to string at java???
Thanks in advance,
dwurity
- 4
- Need help getting ant to runI'm running Windows ME. I downloaded the binary distribution of ant from
http://ant.apache.org/bindownload.cgi
I installed as directed. My path and ant_home variables seem to be set
correctly. When I try to run it by entering "ant -v", I get the following
message:
Apache Ant version 1.6.2 compiled on July 16 2004
Buildfile: build.xml does not exist!
Build failed
I searched for the file build.xml and it indeed does not exist. I'm sure
I'm just missing something really dumb and obvious, but please help me
anyway!
Thanks,
Maxine
--
mgusenet at pcg dot net
- 5
- Tomcat javac and warI have a new context that I added by war. I get the error Unable to find a
javac compiler;
com.sun.tools.javac.Main is not on the classpath.
Perhaps JAVA_HOME does not point to the JDK
But all the examples work fine. Why would that be?
TIA
- 6
- 7
- Digitally signing a J2ME application so that it runs in Operator domainWe are supplying a J2ME (Java) application to a mobile network
operator. We need it to be digitally signed so that it runs in the
Operator domain (as opposed to the Trusted Third Party, Manufacturer
or Untrusted domains). Can someone tell me the process for doing
this?
If there is a seperate process for each phone manufacturer, has anyone
gone through this process with Motorola, SonyEricsson or Nokia? What
are the details?
If the mobile operator needs to perform the process, that is fine, but
I still need to understand what they need to do.
Thanks.
- 8
- 2D drawing library / painting programHi,
Does anyone know a good 2D painting program in Java with source? I
have to make a "conferance room" in Java where users can draw on a
shared whiteboard that they all can see. They have to be able to write
on it, draw rects, circles, freehand, fill with color, choose drawing
color etc. like the basic things you can do in any simple painting
programs like MS Paint. Im developing in JDK 1.4 so Java 2D is
available.
//Kasper, Denmark
- 9
- How to pass an Array Attention Eric SosmanOne problem that I see is with the following.
for(int i = 0; i<len; i++)
{ a[i] = rand.nextInt(); // fill array with random num
System.out.println("a[" + i + "] = " + a[i]);}
return a;
}
The elements of an int array are initialized to 0. Because you have the
System.out.println and return statement within the body of the for
loop, the 1st element of the array will be set to a random int, and
then the array will be returned. When a return statement is executed,
the method exits at that point and nothing else in the method is
executed.
- 10
- Compiler trickJoona I Palaste wrote:
> If we have two
> threads, one of which does A and B, the other does C and D, then the
> actual physical sequence may be A-B-C-D, A-C-B-D, A-C-D-B, C-A-B-D,
> C-A-D-B or C-D-A-B. It is always guaranteed that all four operations
> are done, A is done before B, and C is done before D. Nothing else
> about the ordering is guaranteed. (This is assuming a strictly
> sequential intra-thread execution with no control structures.)
I may be missing your point here, but I think that without synchronisation,
there is no such guarantee. As it happens I've just written a passage in
another post which fits just as well here. Apologies to anyone who sees it
twice ;-)
This is discussed in the Java Memory Model JSR, see:
http://www.cs.umd.edu/~pugh/java/memoryModel/PublicReview.pdf
Two threads, two shared variables A and B, two passages of code that access
them without synchronisation:
Initially A == B == 0
Thread 1:
r2 = A;
B = 1;
Thread 2:
r1 = B;
A = 2;
A legal result of this is that r2 == 2 and r1 == 1. The JSR describes this as
"surprising behavoir". Which is a classic bit of understatement...
-- chris
- 11
- Sharing objects between class-loader instancesThere is a long discussion on the possibility (or impossibility) of
sharing objects between Applet class-loader instances (in the context
of native library access from applets) at:
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4225434
In a recent project I came across this problem and came up with this
solution:
http://tom.conjective.ch/tomtom/space/Sharing+Java+objects+between+class+loader+instances
I don't consider it nice or clean. But it is certainly functional. Some
people would consider it a security hole (I guess even I, depending on
the point of view).
- 12
- JTable - DefaultTableModelHello,
I have a JTable with a DefaultTableModel. I have a search Methode which
searches in the database and displays the results in the JTable. Now I
want to extract the search from the class and put it in an extra class.
I have for both the JTable and the DefaultTableModel defined getters
and setters and now I want to write the following code in the
outsourced method:
Search.getTable().setVisible(true);
search.getModel().addRow(new Object[]{name,text});
Search is the class where the JTable and the DefaultTableModel is
defined. Both lines are in a loop of a Vector size and the data of the
vector are in the name and text parameters of the addRow Method. The
problem is that this does not work and the rows are not displayed when
I start my Java Application. When I put this code (without the Search
prefix and the get-Method) it works without problems.
Is it not possible to address the table and the model in that way from
another class?
lg
- 13
- JSTL c:loop works but c:out doesn'tI have what I think is a weird config problem.
The following JSP
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<html>
<body>
<c:forEach var="i" begin="1" end="5" step="1">
<c:out value="${i}" />
<br />
</c:forEach>
</body>
</html>
produces:
${i}
${i}
${i}
${i}
${i}
instead of the expected
1
2
3
4
5
I'm on Tomcat 5.0
using JSTL 1.1.2
Placing jstl.lib and standards.lib in the app
tld files in app WEB-INF
which is defined in my web.xml
<taglib>
<taglib-uri>http://java.sun.com/jsp/jstl/core</taglib-uri>
<taglib-location>/WEB-INF/c.tld</taglib-location>
</taglib>
What could be wrong?
-Paul
- 14
- Get external (public) IP from my Linksys routerI've been searching for a way to programtically get my public IP from my
router. After much research th eonly thing I came up with was going to a
site like privacy.net and returning the value it reads. What I'd like to do
is compile this into my .chm I give my remote users. So ideally they would
have a button to press that goes to the web site reads the site and returns
the ip to a text box.
I'd like to do it without the user actually seeing IE open the web site. Any
leads?
- 15
- PKCS#10 support in Java.Hello
I am looking for some opensource Java library supporting PKCS#10 standard,
creating certificate signing request and processing answer from CA. I've
found Bouncycastle library, but it would be good to have support only for
PKCS#10, without other aspects of PKI. Do you know anything about such library?
Kubek
|
|
|
