| How can I split "id|name|age|" in java 1.3 |
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Index ‹ java-programmer
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- 3
- The new Net Beans IDE Java developer software. Good in theoryNowadays when you obtain the SDK form java.com
you get a new interactive programming environemt
much like the Borland C++ IDE.
Up to now I've been developing applications "the old way"
using the operating system command line method.
that is, javac MyApp.java
Then my computer at home crashed and I decided to install the
JDK on my office computer. This was when I got the new
Net Beans IDE. It all seemed good in theory, having eveything
conveniently in one package, the editing, compiling and
executing of your program. It even promised a way to assemble
Jar files.
The problem is that application programs which compiled just fine
using the Command line compiler (javac MyApp.java) seemed to generate
numerous "Cannot Resolve Symbol" errors on this new IDE thing.
This is despite I had all necessary classes in the same directory.
Another thing, I cannot make Jar files for my applets.
I also han do problems with the command line method.
I just don't understand. What's worse is that there are no readily
available online resources to address such issues.
Thank goodness I didn't have to pay for this thingy.
What did these super-qualified programmers employed by Sun Microsystems
lear in college?
I finally got my home computer up and running again and
I so happend to have an SDK (command line java compiler) from a CD I got
with a Java textbook.
I loaded it onto my computer and I am back in business again.
Francis
- 4
- Need help regarding java application development....sir i am a student of enggineering and i have assigned a project named
"Download Accelerator".
In this application i need to provide fuctionality such that if a user
clicks on any downloading link in its default web browser our
application must be invoked to start respective downloading with
enhanced spped.
Secondly, i have to provided some features that are used in some
downloading applications for example Aries, DAP etc.
Plz reply soon....
Nitesh
- 4
- How do you do THAT with genericsI am working on an event mechanism. Part of my need is to be able to
have a pool of events that can be reused, rather than incurring the cost
of instantiating one via reflection every time I need one. The pool
interface has this method for checking out an event:
<E extends Object & Event> E checkout(Class<E> cl);
Creating an event from this is easy; "return cl.newInstance();" works
fine. The problem is in storing them for later use.
Since there are many event classes in the event hierarchy, and since I
want this method to be able to return an event of the exact type (so I
don't have to cast it after getting it), I thought to use an inner class
(PoolList<E extends Event>) that holds a list of just one type of Event
and tracks which of its objects are in use and which are available. Then
I could use a Map to key these PoolList objects by Class.
That map is the problem. I need to have it store Class<E> as keys and
PoolList<E> as values...the same parameter (E) in both. Except that the
parameter isn't fixed...it could be any implementation of Event. So the
closest thing that I have is...
private Map<Class<? extends Event>, PoolList<? extends Event>> pool;
...which is wrong because it can't guarantee that the type parameters to
Class and to PoolList are the same (only that they are both
implementations of Event, but they could very well be different ones).
Something like...
private <T extends Event> Map<Class<T>, PoolList<T>> pool;
...would work, except that it isn't legal (the <T extends Event> part
can't be used for fields, only for generic methods). It makes sense that
there should be SOME way to do it...all of the necessary type
information is there at compile time and nothing that's needed at
runtime gets erased. But I can't come up with it.
All I need is a Map that knows that if one type parameter is being used
in the key, the same one should be used in the value. Is there a way in
generics to do this?
- 5
- Problems with NetBeans and Subersion.Hi all,
I've got a problem with the subversion module.
I started to checkout from a svn repository with Subversion-
>Checkout...
Next I was asked to create a new project. I took a C++ project (C++
module).
My project window showed a new project BUT with ZERO files! But the
svn repository is fine...
Any hints for me?
Thanks
Goran
- 9
- JVM parametersWhen using the parameters:
-Xms32m -Xmx200m
What exactly does this do in terms of how much memory is allocated to
the JVM from the system?
Does it initially allocate 32m to the JVM and allow it to grow to 200m
over time? Or does it allocate 200m initially?
Thanks.
- 9
- Java Swing Certified?I'm a Java Certified programmer (310-035) and currently I'm working
with Swing GUI components in my job.
I would like to ask if anybody knows if there's any certification exam
for Swing-AWT. I know this topic was removed from the programmers exam,
but I think this is still included in another exam.
Are there any good book to recommend for Swing?
Thank you.
Pablo
- 9
- A simple way to play a file in an ApplicationHi all,
I am looking for a simple way to play a sound clip (.au file) in a java
application (not applet). AudioClip in java.applet seems to require URLs for
clips, and the Java Sound API looks a little too elaborate for what I am
trying to do. All I need is for this .au file to be played once inside
another method. Can anyone give me some pointers here?
TIA
- 9
- Her tight ass shows a massive gape as a cock drills her arse Just few link on some movies...
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- 9
- question about console InputHello group,
I wonder if there's any equivalent to C's getch() in java, i.e to
fetch a character from the console immediately after the user typed it,
without pressing the "Enter" key.
Any solution or suggestion is welcome, thank you!
layman
- 9
- Barcode reading in JavaHi Everybody I am an MCA student.
I want to know how does the bar code reaer works and How we can use it
in a poject where we can take input by reading the bar code and
display the information about the item.
like in malls they just read the barcode and all the info comes there?
Which tool to use?
I am a fresher and want to implement this in project.
Thank U
Pankaj
- 9
- (Review ID: 186942) # HotSpot Virtual Machine Error, Internal
--IJpNTDwzlM2Ie8A6
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
On Mon, Jun 02, 2003 at 14:30:27 -0700, Tom Samplonius wrote:
> > FULL OS VERSION :
> > FreeBSD sherman.cs.miami.edu 4.5-RELEASE-p26 FreeBSD 4.5-RELEASE-p26 #1: Sun Mar 30 17:45:29 EST 2003 email***@***.com:/usr/obj/usr/src/sys/SHERMAN i386
> Probably should use 4.8-RELEASE instead, and upgrade the Linux emulator.
I encounter the same error, with my 5.1-BETA
Terry [/home/ijliao] -ijliao- /usr/local/linux-sun-jdk1.4.1/bin/java -version
#
# HotSpot Virtual Machine Error, Internal Error
# Please report this error at
# http://java.sun.com/cgi-bin/bugreport.cgi
#
# Java VM: Java HotSpot(TM) Client VM (1.4.1_03-b02 mixed mode)
#
# Error ID: 4F533F4C494E55580E43505002DD
#
Abort (core dumped)
--
The sooner you start to code, the longer the program will take.
--- Roy Carlson
--IJpNTDwzlM2Ie8A6
Content-Type: application/pgp-signature
Content-Disposition: inline
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.2 (FreeBSD)
iD8DBQE++ZZyrMYBZRHAI4IRAtlWAKC0FYiYG7KRDPC5H5W8VA3MGhDDWQCaAnsl
CFbtsDjRYc6BIM/KFEl6RVM=
=TXcN
-----END PGP SIGNATURE-----
--IJpNTDwzlM2Ie8A6--
- 10
- Specify security access in JNLPIs it possible to specify what access the web start application needs to
run?
Using the JNLP code
<security>
<all-permissions/>
</security>
All access can be gained, but I would like to restrict it to contacting
certain servers and clipbaord access. More like 'java.awt.AWTPermission
"accessClipboard"'. Is it possible to use this policy code in the JNLP file?
G
- 11
- Openings in javaHi All
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- 16
- How to delete lines from input file?I'm writing this program to implement a two phase multi-way merge sort.
It works by splitting the data to be sorted into temporary sorted
lists (output files) equal in size to a memory constraint that is
passed in when the program is run. What I've got to do now is actually
merge the lists into one final output. The trick is that this is
supposed to save disk I/Os. What happens is I read the smallest
element from each temporary file into an array. From that array, the
smallest goes into the final output, and that element is then replaced
by the next element from the same list.
I feel like what I need to do is delete a number from one of the
temporary when it's read into the array. Then all I have to do is read
the first line from the same list to get the next number into the
merging array. Any suggestions on how to do this?
I'm using SDK 1.4.2 and the input/output files are binary, so I'm using
DataInput/OutputStream to do this.
Thanks,
Andrew Weber
|
| Author |
Message |
hani_alaita
|
 Posted: 2003-10-17 23:03:00 |
Top |
java-programmer, How can I split "id|name|age|" in java 1.3
How can I split "id|name|age|" in java 1.3
I had it working in java 1.4 with a split function, but I have to make
it run on Java 1.3 as well. any ideas?
Thanks
|
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Michael Borgwardt
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| Posted: 2003-10-17 23:13:00 |
Top |
java-programmer >> How can I split "id|name|age|" in java 1.3
Hani wrote:
> How can I split "id|name|age|" in java 1.3
>
> I had it working in java 1.4 with a split function, but I have to make
> it run on Java 1.3 as well. any ideas?
java.util.StringTokenizer should do.
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VisionSet
|
| Posted: 2003-10-17 23:16:00 |
Top |
java-programmer >> How can I split "id|name|age|" in java 1.3
"Hani" <email***@***.com> wrote in message
news:email***@***.com...
> How can I split "id|name|age|" in java 1.3
>
> I had it working in java 1.4 with a split function, but I have to make
> it run on Java 1.3 as well. any ideas?
>
Use the java.util.StringTokenizer class.
new StringTokenizer("id|name|age|","|");
There is an example in the API as to how to use it.
--
Mike W
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Chris Smith
|
| Posted: 2003-10-18 6:13:00 |
Top |
java-programmer >> How can I split "id|name|age|" in java 1.3
Michael Borgwardt wrote:
> Hani wrote:
> > How can I split "id|name|age|" in java 1.3
> >
> > I had it working in java 1.4 with a split function, but I have to make
> > it run on Java 1.3 as well. any ideas?
>
> java.util.StringTokenizer should do.
To head off another common question that's come up more times than days
recently, this only works if there are no empty fields. If there are
empty fields, you'll need to find a replacement (or greatly complicate
your client code). Jon Skeet's written one, and I posted a link within
the past day or so either here or in .help.
--
www.designacourse.com
The Easiest Way to Train Anyone... Anywhere.
Chris Smith - Lead Software Developer/Technical Trainer
MindIQ Corporation
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Index ‹ java-programmer |
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email address.
Can anyone tell me what's causing this problem from the expression
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Many thanks,
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- quartic polynomial solverHi,
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java.io.IOException: Server returned HTTP response code: 400 for URL:
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java.lang.NoClassDefFoundError: org/apache/log4j/Logger
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but my webserver (IIS on w2K) structure is thus :
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Hashtable env = new Hashtable(11);
env.put( Context.INITIAL_CONTEXT_FACTORY,
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<Resource name="jdbc/devel4_minePooledDS" scope="Shareable"
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InitialContext initCtx = new InitialContext();
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Connection conn = ds.getConnection();
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so helpful, to be honest:
2004-05-04 09:46:06 StandardWrapperValve[action]: Allocate exception
for servlet action
javax.servlet.ServletException: Servlet.init() for servlet action
threw exception
at org.apache.catalina.core.StandardWrapper.loadServlet(Unknown
Source)
at org.apache.catalina.core.StandardWrapper.allocate(Unknown Source)
at org.apache.catalina.core.StandardWrapperValve.invoke(Unknown
Source)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(Unknown
Source)
at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source)
at org.apache.catalina.core.ContainerBase.invoke(Unknown Source)
at org.apache.catalina.core.StandardContextValve.invoke(Unknown
Source)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(Unknown
Source)
at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source)
at org.apache.catalina.core.ContainerBase.invoke(Unknown Source)
at org.apache.catalina.core.StandardContext.invoke(Unknown Source)
at org.apache.catalina.core.StandardHostValve.invoke(Unknown Source)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(Unknown
Source)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(Unknown
Source)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(Unknown
Source)
at org.apache.catalina.valves.ErrorReportValve.invoke(Unknown Source)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(Unknown
Source)
at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source)
at org.apache.catalina.core.ContainerBase.invoke(Unknown Source)
at org.apache.catalina.core.StandardEngineValve.invoke(Unknown
Source)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(Unknown
Source)
at org.apache.catalina.core.StandardPipeline.invoke(Unknown Source)
at org.apache.catalina.core.ContainerBase.invoke(Unknown Source)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:594)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619)
at java.lang.Thread.run(Thread.java:536)
----- Root Cause -----
java.lang.StackOverflowError
at gnu.xml.pipeline.ValidationConsumer$ChildrenRecognizer.acceptElement(ValidationConsumer.java:1795)
at gnu.xml.pipeline.ValidationConsumer$ChildrenRecognizer.acceptElement(ValidationConsumer.java:1795)
at gnu.xml.pipeline.ValidationConsumer$ChildrenRecognizer.acceptElement(ValidationConsumer.java:1795)
at gnu.xml.pipeline.ValidationConsumer$ChildrenRecognizer.acceptElement(ValidationConsumer.java:1795)
at gnu.xml.pipeline.ValidationConsumer$ChildrenRecognizer.acceptElement(ValidationConsumer.java:1795)
at gnu.xml.pipeline.ValidationConsumer$ChildrenRecognizer.acceptElement(ValidationConsumer.java:1795)
..
.
.
I didn't find anything similar
any helop will be appreciated
thanks in advance
jc
- 10
- Trying to store fixed dates in calendar....hi,
sorry to bother you with a question somebody should have already ask,
but i was unable to find it in groups.google.com.. so ;)=
well, my problem is that i'm trying to store dates values in Calendar
(more exactly GregorianCalendar) class instances.
BUT... the stored dates keep on running upon the system date :
ie : i store 2h 34m 5s 324ms
4s later, when i print the date, it will give me something like
2h 34m 9s 450ms
it is very bothering for me...
how can i make Calendar class to store "fixed" dates... ?
or which class should i use to store "fixed" dates ?
Thanx for your help.
Pierre-Yves
- 11
- Problem With Eclipse IDE and perforce plugin.Hi I am running Eclipse SDK Version: 3.1.0 Build id: I20050627-1435
It has perforce plugin P4WSAD Client API Team provider core and
Provider UI all version 2005.2.3573
Each time I compile the project I got follows exception. I does not
prevent from working successfully but kind annoing.
Error 2006-10-19 10:46:56.703 Problems occurred when invoking code from
plug-in: "org.eclipse.core.resources".
java.lang.NullPointerException
at
com.perforce.team.ui.actions.TeamAction.getShell(TeamAction.java:154)
at
com.perforce.team.ui.actions.AddEditDeleteAction.doAddEditDelete(AddEditDeleteAction.java:70)
at
com.perforce.team.ui.PerforceMarkerManager.resourceChanged(PerforceMarkerManager.java:111)
at
org.eclipse.core.internal.events.NotificationManager$2.run(NotificationManager.java:276)
at
org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:1044)
at org.eclipse.core.runtime.Platform.run(Platform.java:783)
at
org.eclipse.core.internal.events.NotificationManager.notify(NotificationManager.java:270)
at
org.eclipse.core.internal.events.NotificationManager.broadcastChanges(NotificationManager.java:144)
at
org.eclipse.core.internal.resources.Workspace.broadcastBuildEvent(Workspace.java:185)
at
org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:140)
at
org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:200)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:76)
Thank u Vlad.
- 12
- What is meant by 'canonical representation'Hi,
I was reading the sun java api 1.4.2 and found the following for
String.intern().
public String intern()
Returns a canonical representation for the string object.
What is a canonical representation? Any example?
//Mikael
- 13
- [OT] Re: Yet Another Web Application Mess...Hi,
Roedy Green wrote:
>... in the early 80...
> It will be that class's concern alone that
> Germans have a two part zip code.
Note that this was true in the early 80es but is no longer true since...
ah... the late 80es.
SCNR,
Ingo,
33615 Bielefeld
- 14
- Bug#365408: Millions of men use thisGive your woman extraordinary pleasure and extraordinary orgasms.
http://www.Plixiets.com/
Too hot to handle
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- 15
- Register Now - BOF 36 JBoss SEAM and JavaServerFacesHello world,
This is a quick reminder that the BOF 36 is still on track as
scheduled for the 16th of April. If you are in or around London area
and think you would like to attend but missed the initial
announcement, well here's the link again
ttp://www.jroller.com/javawug/entry/javawug_bof_36_jboss_seam.
Secondly, I would also like to formally announce that there is a Code
Camp holding on the 19th of April at the same venue. More about the
Code Camp later.
Please note that these are TOTALLY FREE events organised by the London
based JavaWUG. So, just put your name down and come along.
http://www.jroller.com/javawug/entry/javawug_bof_36_jboss_seam#register
If you have any queries or need something clarified, please leave a
comment on this page.
Evans Anyokwu
http://www.javawug.org
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