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Index ‹ java-programmer
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- 1
- Change so that I can print .txt or .rtfHi All,
I have tested this program below using a .gif and it works
successfully.
I want to change it so that I can print a notepad.txt or wordpad.rtf.
TIA,
bH
import java.io.*;
import javax.print.*;
import javax.print.attribute.*;
import javax.print.attribute.standard.*;
import javax.print.event.*;
public class BasicPrint {
public static void main(String[] args) {
try {
// Open the image file
InputStream is = new BufferedInputStream(
new FileInputStream("BIGbggrn01.gif"));
// Find the default service
DocFlavor flavor = DocFlavor.INPUT_STREAM.GIF;
PrintService service =
PrintServiceLookup.lookupDefaultPrintService();
// Create the print job
DocPrintJob job = service.createPrintJob();
Doc doc = new SimpleDoc(is, flavor, null);
// Monitor print job events; for the implementation of
PrintJobWatcher,
PrintJobWatcher pjDone = new PrintJobWatcher(job);
// Print it
job.print(doc, null);
// Wait for the print job to be done
pjDone.waitForDone();
// It is now safe to close the input stream
is.close();
} catch (PrintException e) {
} catch (IOException e) {
}
}
}
class PrintJobWatcher {
// true iff it is safe to close the print job's input stream
boolean done = false;
PrintJobWatcher(DocPrintJob job) {
// Add a listener to the print job
job.addPrintJobListener(new PrintJobAdapter() {
public void printJobCanceled(PrintJobEvent pje) {
allDone();
}
public void printJobCompleted(PrintJobEvent pje) {
allDone();
}
public void printJobFailed(PrintJobEvent pje) {
allDone();
}
public void printJobNoMoreEvents(PrintJobEvent pje) {
allDone();
}
void allDone() {
synchronized (PrintJobWatcher.this) {
done = true;
PrintJobWatcher.this.notify();
}
}
});
}
public synchronized void waitForDone() {
try {
while (!done) {
wait();
}
} catch (InterruptedException e) {
}
}
}
- 2
- <<Whats this? >>Help ButtonDear All
In most windows based applications, we can find a button with icon like
[Arrow and Question mark]
It is always on the help menu
When selected the Cursor is changed to that icon, and any thing clicked
will pop-up a small yellow help tip
How can this be done with java?
Thanks ;
Essam
- 3
- Create own data structure from DOM?Hi again!
I successfully parsed my XML file into a DOM and traversed it in level-
order. I did that to gather information about component number and
level of each component node in the tree, because I need to work with
that information a little later.
The original XML file looks a little like this (the attribute index
letters represent the level-order "numbering"):
<Component ind="A">
<Component ind="B">
<Component ind="D"/>
<Component ind="E"/>
</Component>
<Component ind="C">
<Component ind="F"/>
</Component>
</Component>
What I'm trying to do now is to create instances of each component. I
have a Component class carrying all information I need - except one:
Who's my father component?
What should I do to tell every component instance of it's father node
without creating more than one instance of each component?
I thought of two and a half possibilities yet, but I really hope you
can help me here or give me some new ideas:
a) put every component node (from DOM) onto a stack and pop one by one
by creating component instances and create another component instance
of node.getParent(). but then I have a lot of component instances
doubled or tripled or even more... that ain't really efficient.
Stack:
F
E
D
C
B
A
b) create instances while traversing the DOM and add each instance to
a array list. But then I have the problem of not knowing the array
index of the father component.
Array:
A B C D E F
c) create multiple lists with array[0] carrying the father node
followed by it's child nodes (array[i])
Array 1:
A B C
Array 2:
B D E
Array 3:
C F
Thank you in advance!
/Chris
- 4
- Design pattern for 1 Producer/multiple Consumers?I'm doing a simple Producer/Consumer thing based on the example in the Sun
docs, where the Consumer does a wait until there is something to consume,
then it consumes it and does a notify, and the Producer does a wait until
there is nothing to consume and then adds it and does a notify. But now I
need a bunch of Consumers. Is there a standard design pattern for this,
or am I going to have to figure it out myself?
--
Paul Tomblin <email***@***.com> http://blog.xcski.com/
Do you have a point, or are you saving it for a special occasion?
-- David P. Murphy
- 7
- Mobile phones, J2ME and Java Enabled Phone
Regarding Mobile Phone and j2me or Java enabled phone I have two
query.
1)I need help on finding a mobile phone that support j2me.
2)How can I download a J2ME application to a mobile phone that support
J2ME or Is a Java Enabled?
Any help is appreciated.
-Reda Mokrane
- 7
- Spidering and strippingIs it a difficult task to develop a Java agent that spiders a web site,
copies the text, and strips the HTML tags?
Thanks.
- 9
- Launching a browser -- help!I've found several good examples out there on how to launch a web
browser
from a Java application, using the Runtime exec() command. However,
what
I'd like to do is configure the browser that's launched, as one would
in
an html link with the javascript onclick="window.open(
'http://www.mysite.com', 'mywindow',
'width=500,height=500,scrollbars=no,resizable=no')"
Is there any way to set, for example, the width and height on the
browser
I launch? There doesn't seem to be any command line parameters for
the
browser I'm launching, and besides, those would be platform-specific.
I
suspect it will require some javascript trickery -- but I only know
how
to specify those parameters on links, not on the page I'm am newly
invoking...
Please help!
--Mark
- 9
- [ANT] apply-task and relative attribute (gettext-like internationalisation/localisation)Hello,
We are currently trying to internationalise Jmol with gettext. Therefor I
wrote an ant-build-script to generate everything necessary to allow the
typical use of gettext. You will find it here:
http://cvs.sourceforge.net/viewcvs.py/jmol/Jmol/build-i18n.xml?rev=1.7&view=auto
or http://pastebin.com/291187
But I have a minor problem. At the moment xgettext gets all files relative
to the src-directory (${basedir}/src), which leads to such .po(t)-file
location-entries:
#: org/jmol/applet/Jmol.java:118
but I would like to have entries relative to the directory, where the .pot
and .po files reside (${basedir}/src/org/jmol/translation/Jmol):
#: ../../../jmol/applet/Jmol.java:118
Is there anyone with an idea, how this can be realized (I wasn't
successful in my last tries)? You can also reach me via IRC
(irc.freenode.net, #cdk) or ICQ (#148295333) for a direct discussion
and/or work on the file at pastebin.com. Of course, I will also send all
discussion results to the group.
BTW: Ant is version 1.6.2.
Regards, Daniel
--
GnuPG-ID 4F981411 ~~ http://www.wgdd.de/
Usenet-FAQ http://www.afaik.de/usenet/faq/ & http://got.to/quote
de.sci.chemie http://www.dsc-faq.de/ & http://www.chemie-webverzeichnis.de/
de.comp.security.*-FAQs http://www.linkblock.de
- 10
- openoffice.org-2.0 build errorThis is a multipart MIME message.
Is there resolution to overcome this?
hs_err_pid22565.log is attached.
Thanks.
Bob
email***@***.com
- 10
- Applet paint problem (only on IE)I've written an animated, double buffered graphical applet for JDK 1.1.8 (It
has to run without the user having to download a new JRE) that is run in a
table cell on a web page. It uses threads for the animation, with a delay
based on the speed of the animation.
The problem is that on IE, the image does not display until it regains
focus, ie the page is scrolled down, then up, or a second window obscures it
and is then removed. According to the Java console, it has started fine.
It works as it should on FireFox and Opera, and works in IE when it is the
only thing on the page. I have tried everything I can think of (removing the
delay, extra repaints, trying every kind of embedding into the web page,
etc, even trying to get keyboard focus) but to no avail.
Does anyone know what the problem might be?
Thanks,
Greg
- 10
- Text on the screen , java3dhey mates, im really newbie with java3d, im learning this api, and
doing somes test, but i have my first question, i want to put some
text on the screen, i know its exist a Text2D class, but its interact
with the virtualuniverse , i want only put flat text on the screen,
with some data, maybe the fps , coordenates , etc
i was trying to use the getGraphics of Canvas3D and use drawString but
didnt work, i did the same thing with Frame also with Applet, i got
the graphics and used drawString, but nothing
how can i do to be able to do this? could you give me somes examples?
i hope you can help me:D
PD: sorry my bad english , i from venezuela :$
- 10
- java/53790: Let tomcat41ctl start java -server
>Number: 53790
>Category: java
>Synopsis: Let tomcat41ctl start java -server
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-java
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: change-request
>Submitter-Id: current-users
>Arrival-Date: Thu Jun 26 09:40:00 PDT 2003
>Closed-Date:
>Last-Modified:
>Originator: Ernst de Haan
>Release: FreeBSD 4.8-STABLE i386
>Organization:
FreeBSD Project
>Environment:
System: FreeBSD zaphod.euronet.nl 4.8-STABLE FreeBSD 4.8-STABLE #16: Mon Jun 16 14:38:13 CEST 2003 email***@***.com:/usr/obj/usr/src/sys/ZAPHOD i386
>Description:
Wojtek Sobczuk is requesting the following:
i believe that tomcat41ctl should start tomcat using: java -server, and
not java -client (which is the default).
>How-To-Repeat:
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
_______________________________________________
email***@***.com mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-java
To unsubscribe, send any mail to "email***@***.com"
- 10
- Maven: Calling ANT scripts before buildHi all,
I have this little problem in maven. I like to call an ANT script which
does some JAXB compiling before my compile goal is executed.
does anyone know how to achieve this? I have looked into the docs, and
I don't quite get it, I fear ... :-) .
Thanks in advance & greetings,
Axel.
- 13
- loop through all controls on a panel without hardcodingHello,
In other environments (Delphi and .NET have things like ComponentCount
and FindControl) I've used prior to Java, I could automatically find
all the controls (or only the controls of a certain type, like
checkboxes for example) on a form by passing that form off to some
built in methods which know how to iterate through all the controls
contained within that form.
I haven't been able to find an equivalent feature in Java. In my Java
app, if I have 5 checkboxes on a panel, I would prefer to pass just
the panel to my method for processing (and have checkbox state
determined there) rather than myMethod (cb1, cb2, cb3, cb4, cb5).
How is this done in Java?
Thanks!
- 15
- Locator2 and SAX parsersHello:
I'm using the org.xml.sax JAVA API to manage a XML file.
I want to know if it exists a SAX parser ( SAX driver ) that supports
Locator2 interface (in org.xml.sax.ext package ).
My objetive is to get the encoding property of a XML file, and that
interface has a getEncoding() method.
Anyone SAX parsers that I've probed don't supports this interface (xerces,
piccolo, oracle , aelfred, ... )
I would like to know if somebody has used this JAVA interface (Locator2).
Thaaaaaanks
|
| Author |
Message |
DerrickHaller
|
 Posted: 2005-8-15 14:04:00 |
Top |
java-programmer, Threading In Java Beans
Hello, I was trying to find some information regarding Concurrency in
J2EE. In my application I simply put a lock on the session and the
accessor/mutator methods inside the bean. Is this the proper way of
ensuring data consistency in a large scale web site. Any opinions or
links would be appreciated.
thanks
|
| |
|
| |
|
Daniel Rohe
|
| Posted: 2005-8-16 16:01:00 |
Top |
java-programmer >> Threading In Java Beans
Look at the EJB Specification 2.1, chapter 25.1.2 Programming Restrictions
on page 562ff. It prohibits usage of threading. Use transactions (JTA) to
ensure data consistency.
Kind regards,
Daniel
<email***@***.com> schrieb im Newsbeitrag
news:email***@***.com...
> Hello, I was trying to find some information regarding Concurrency in
> J2EE. In my application I simply put a lock on the session and the
> accessor/mutator methods inside the bean. Is this the proper way of
> ensuring data consistency in a large scale web site. Any opinions or
> links would be appreciated.
> thanks
>
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Index ‹ java-programmer |
- Next
- 1
- Constructors + Information HidingI have a random question about a constructor having access to a private
instance variable from an object of the same type.
Class:
public class VarTest {
private int x;
private String s;
public VarTest(){
x = 10;
s = "Testing";
}
public VarTest(int i, String str){
x = i;
s = str;
}
//I know why this would be a useful constructor,
// but why is this allowed if the instance variables for
// vt are private?????
public VarTest(VarTest vt){
x = vt.x;
s = vt.s;
}
public int getX(){
return x;
}
public String getS(){
return s;
}
}
Test Class:
public class Tester{
public static void main(String args[]){
VarTest var1, var2;
var1 = new VarTest(34, "Working?");
var2 = new VarTest(var1);
System.out.println("var2 - x:\t" + var2.getX());
//var2.getX() display 34... Why can is get that from var1?
}
}
Thanks In Advance Folks,
Josh
- 2
- Media Framework presenceHello,
Applications produced by my project, sometimes (not always) relys on
the presence of the Media Framework on the machine of the final user.
When an application created with my project uses Media framework, is
launched on a machine where JMF is not installed, it crashes badly
(hard reset necessary).
So my question : is there a way to detect if the JMF is installed on
the machine of the final user?
Thanks for you input,
Francois
- 3
- How to validate XSLT output in java?Howdi,
This should be simple but I am lost in the maze of java xml/xsl
classes. Given a dom Document and an xsl Templates object I want to
run the document through a transformer and validate the output against
a schema and then return the output xml as another Document.
At the moment the only way I can work out how to do this is by
writing the xslt output to a File, then parsing it back in from the
File with validation enabled.. How do I do it directly? Here is where
I have got too. I am working with Java 1.4.2 default implementation.
Regards,
Damon.
====================
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Templates;
import javax.xml.transform.Transformer;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.sax.SAXResult;
import org.w3c.dom.Document;
import org.xml.sax.InputSource;
public class ValidatingTransform {
public static Document transformXMLDocumentWithValidate(Document
in,
Templates template) throws Exception {
if (in == null)
throw (new Exception("Input document is null"));
// What goes here?
SAXResult result = null;
// Get a transformer from the template
Transformer transformer = template.newTransformer();
transformer.transform(new DOMSource(in), result);
// What goes here??
InputSource source = null;
// Parse the output into a dom with validation
// I am assuming the XSLT output will contain a valid
schemaLocation
DocumentBuilderFactory dbFactory =
DocumentBuilderFactory.newInstance();
dbFactory.setNamespaceAware(true);
dbFactory.setValidating(true);
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
Document docResult = dBuilder.parse(source);
return docResult;
}
}
- 4
- HELP!! Iam new in JAVAI am geting this error in JGRASP:
Lab01.java:2: package edu.pace does not exist
How do I fix it......????
- 5
- 6
- Typing number from idle screenHi All,
Can anyone give me a sample code in J2ME how to bring a screen such
that you can type in numbers in the idle screen to make a call?
- 7
- JWS app does not update.Hi,
I'm familiar with the rules for JWS automatics updates, but my machine
doesn't seem to follow those rules and the application is frequently
stale (even when redeployed off the web).
What could be the cause of this?
For example, does one need to restart one's browser?
Restart one's computer?
Clear out temporary files?
Thanks!
Aaron Fude
- 8
- Clever JNI solution neededOn Thu, 25 Mar 2004 20:01:32 -0500, Jim Sculley
<email***@***.com> wrote:
> I'm wrapping some Java around a large C++/COM API for a Windows
> application via JNI. I cannot see a way to implement one particular
> feature of this API, so I'm posting here to see if it is:
>
> a) impossible
> b) possible with a little cleverness
> c) trivial and I have simply missed something obvious.
>
> The API includes a function to add menu items to a Windows application.
> The COM API call in C++ looks like this:
>
> AddMenuItem("SomeMenuItem@SomeMenu","someFunctionToCall");
>
> The 'someFunctionToCall' parameter is the name of the method to be
> called in the native code. I cannot see a way to implement this on the
> Java side since the native code doesn't even know that Java is involved.
>
> The most I can do is point the native code to a single function for all
> added menu items, but then I have no way of knowing which menu item's
> action needs to be performed.
>
> I suspect that this is impossible but if anyone believes otherwise, feel
> free to comment.
How about generating the necessary C++ functions at build time, that all
just delegate to their Java counterparts? Shouldn't be too hard with Ant
and XDoclet, I reckon. Just tag the relevant methods and use a custom
doclet.
Michiel
- 9
- 10
- Problem with Look and FeelI have an applet in which i set the look and feel to that of the system.
This works when the applet is loaded but when the user selects another
page and then returns to the applet the look and feel has changed.
I have no ideas as to why this is happening.
Any help would be much appreciated.
Regards
Clive
--
Posted via Mailgate.ORG Server - http://www.Mailgate.ORG
- 11
- AWT -> Swing, blocked dispatch thread
Ok, so I'm finally modernizing my code and switching everything from AWT
to Swing. I keep getting errors like the one below. What might I be
doing that would be blocking the event dispatch thread? Or maybe I'm
doing something else? Is there some common noob mistake that causes
this?
Thanks.
Event
java.awt.event.MouseEvent[MOUSE_PRESSED,(17,93),mods=16,clickCount=1] on
frame0 not handled after 30 seconds. Are you blocking the event
dispatch thread?
java.lang.Exception: Stack trace
at java.lang.Thread.dumpStack(Thread.java:1004)
at
com.apple.mrj.internal.awt.basepeers.EventHandlingComponentPeer.pumaWorka
roundPostEvent(EventHandlingComponentPeer.java:931)
at
com.apple.mrj.internal.awt.basepeers.EventHandlingComponentPeer.mousePres
sed(EventHandlingComponentPeer.java:680)
at
com.apple.mrj.internal.awt.frames.SimpleFramePeer.handleClick(SimpleFrame
Peer.java:1729)
at
com.apple.mrj.internal.awt.framehosts.CarbonWindowFrameHost.handleClick(C
arbonWindowFrameHost.java:1113)
at
com.apple.mrj.internal.awt.framehosts.CarbonWindowFrameHost.handleClickCo
ntentRgn(CarbonWindowFrameHost.java:1073)
at
com.apple.buckyball.app.WindowEventHandler.handleEvent(WindowEventHandler
.java:101)
at
com.apple.buckyball.app.EventHandler$Adapter.EventHandler(EventHandler.ja
va:248)
--
Please take off your shoes before arriving at my in-box.
I will not, no matter how "good" the deal, patronise any business which sends
unsolicited commercial e-mail or that advertises in discussion newsgroups.
- 12
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- 13
- shrinkwrap JavaRoedy Green <email***@***.com> wrote or quoted:
> Java detractors seem to think Java is unsuited for writing anything
> visually complex.
>
> Take a peak at this stock market app. I think the authors went
> overboard with complexity, but it shows you what is possible and just
> how fast rendering can be. My guess is they use clipregions for
> re-rendering just two tall slivers to get that speed.
>
> http://www.downloadquotes.com/en/applet.phtml?key=Demo&id=3097
It's not exactly doing very much.
Give me http://www.ibiblio.org/lifepatterns/ any day ;-)
--
__________
|im |yler http://timtyler.org/ email***@***.com Remove lock to reply.
- 14
- crazy pooling jdbc driver on msaccessI swear that when using the Jakarta commons pooling code with the Sun
JDBC ODBC driver and Microsoft Access I have instances of it closing a
connection on me randomly.
Actually not so randomly - seems to happen regularly but not at the
same spot.
ugh, so tricky to troubleshoot...
- 15
- any easy way to write out a XML DOM object to file?Hello!
I am using Document and DOM to hold a XML file, and make some changes
to the Document. After that, I just wonder is there any easy way to
write the modified XML file back to disk? (loop all the nodes and
print them out is one way of course, any other better way?)
The piece of node is:
String filename="mytest.xml";
DocumentBuilderFactory factory =
DocumentBuilderFactory.newInstance();
// Create the builder and parse the file
Document doc = factory.newDocumentBuilder().parse(new
File(filename));
// changes the doc, add, edit nodes, etc.
Now, I want to get the updated xml file from "doc", what to do?
Anything like doc.writeAsXMLFile("newFile.xml")?
Thanks and happy holiday. :-)
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