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Index ‹ java-programmer
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- 2
- Skyway Builder Rocks! I'm building J2EE apps without writing code....I've been using this development platform for the past month and I
can't believe how easy it is to build JAVA applications and web
services. This thing is powerful and a huge time saver. I havn't had
to write a single line of code yet. If you havn't tried it, do
yourself a favor and download it..it's FREE.
- 2
- hasNext?What is hasNext? I know you use it when you are reading from a file
and it will stop when it has nothing more to read, but how would you
use it? I have seen a couple of different examples of it, but all
they do is make me more confused. I just can't seem to understand
it...can anyone help?
- 5
- Websphere session persistence gets "protocol violation" using oracle jdbc driverHi,
We use oracle (8.1.7) as the session persistence database for our
websphere 3.5.4 application server. After 15 min of running a stress
test, we get the foll. exception. Any idea whats going wrong?
thanks,
Chinmay
java.sql.SQLException: Protocol
violation
at java.lang.Throwable.fillInStackTrace(Native Method)
at java.lang.Throwable.<init>(Throwable.java:94)
at java.lang.Exception.<init>(Exception.java:42)
at java.sql.SQLException.<init>(SQLException.java:43)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:114)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:156)
at oracle.jdbc.dbaccess.DBError.check_error(DBError.java:803)
at oracle.jdbc.ttc7.Oall7.receive(Oall7.java:549)
at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1311)
at oracle.jdbc.ttc7.TTC7Protocol.executeFetch(TTC7Protocol.java:661)
at oracle.jdbc.driver.OracleStatement.executeNonQuery(OracleStatement.java:1320)
at oracle.jdbc.driver.OracleStatement.doExecuteOther(OracleStatement.java:1232)
at oracle.jdbc.driver.OracleStatement.doExecuteWithBatch(OracleStatement.java:1353)
at oracle.jdbc.driver.OracleStatement.doExecute(OracleStatement.java:1760)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1805)
at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:320)
at com.ibm.ejs.cm.cache.CachedStatement.executeUpdate(CachedStatement.java:314)
at com.ibm.ejs.cm.proxy.PreparedStatementProxy.executeUpdate(PreparedStatementProxy.java:235)
at com.ibm.servlet.personalization.sessiontracking.BackedHashtable.ejbStore(BackedHashtable.java:2564)
at com.ibm.servlet.personalization.sessiontracking.BackedHashtable.storeSession(BackedHashtable.java:2272)
at com.ibm.servlet.personalization.sessiontracking.BackedHashtable.put(BackedHashtable.java:2958)
at com.ibm.servlet.personalization.sessiontracking.DatabaseSessionContext.sync(DatabaseSessionContext.java:112)
at com.ibm.servlet.personalization.sessiontracking.SessionData.releaseSession(SessionData.java:260)
at com.ibm.servlet.engine.srt.SRTSessionAPISupport.finish(SRTSessionAPISupport.java:190)
at com.ibm.servlet.engine.srt.SRTConnectionContext.finishConnection(SRTConnectionContext.java:103)
at com.ibm.servlet.engine.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:102)
at com.ibm.servlet.engine.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:67)
at com.ibm.servlet.engine.invocation.CacheableInvocationContext.invoke(CacheableInvocationContext.java:106)
at com.ibm.servlet.engine.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:160)
at com.ibm.servlet.engine.oselistener.OSEListenerDispatcher.service(OSEListener.java:300)
We also get another exception below the above one in the trace log:
StatementProx E Exception closing statement
com.ibm.ejs.cm.exception.IllegalConnectionUseException: Error:
Connection is being used in a way that violates the architecture
at java.lang.Throwable.fillInStackTrace(Native Method)
at java.lang.Throwable.<init>(Throwable.java:94)
at java.lang.Exception.<init>(Exception.java:42)
at java.sql.SQLException.<init>(SQLException.java:82)
at com.ibm.ejs.cm.portability.PortableSQLException.<init>(PortableSQLException.java:35)
at com.ibm.ejs.cm.exception.IllegalConnectionUseException.<init>(IllegalConnectionUseException.java:26)
at com.ibm.ejs.cm.proxy.Proxy.close(Proxy.java:154)
at com.ibm.ejs.cm.proxy.StatementProxy.__close(StatementProxy.java:61)
at com.ibm.ejs.cm.proxy.StatementProxy.close(StatementProxy.java:216)
at com.ibm.ejs.cm.proxy.Proxy.close(Proxy.java:76)
at com.ibm.ejs.cm.proxy.ConnectionProxy.close(ConnectionProxy.java:645)
at com.ibm.ejs.cm.proxy.ConnectionProxy.connectionDestroyed(ConnectionProxy.java:97)
at com.ibm.ejs.cm.pool.ConnectO.fireConnectionDestroyed(ConnectO.java:1500)
at com.ibm.ejs.cm.pool.ConnectO.destroy(ConnectO.java:741)
at com.ibm.ejs.cm.pool.ConnectO.translateException(ConnectO.java:1134)
at com.ibm.ejs.cm.proxy.ConnectionProxy.translateException(ConnectionProxy.java:177)
at com.ibm.ejs.cm.proxy.PreparedStatementProxy.translateException(PreparedStatementProxy.java:484)
at com.ibm.ejs.cm.proxy.PreparedStatementProxy.executeUpdate(PreparedStatementProxy.java:238)
at com.ibm.servlet.personalization.sessiontracking.BackedHashtable.ejbStore(BackedHashtable.java:2564)
at com.ibm.servlet.personalization.sessiontracking.BackedHashtable.storeSession(BackedHashtable.java:2272)
at com.ibm.servlet.personalization.sessiontracking.BackedHashtable.put(BackedHashtable.java:2958)
at com.ibm.servlet.personalization.sessiontracking.DatabaseSessionContext.sync(DatabaseSessionContext.java:112)
at com.ibm.servlet.personalization.sessiontracking.SessionData.releaseSession(SessionData.java:260)
at com.ibm.servlet.engine.srt.SRTSessionAPISupport.finish(SRTSessionAPISupport.java:190)
at com.ibm.servlet.engine.srt.SRTConnectionContext.finishConnection(SRTConnectionContext.java:103)
at com.ibm.servlet.engine.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:102)
at com.ibm.servlet.engine.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:67)
at com.ibm.servlet.engine.invocation.CacheableInvocationContext.invoke(CacheableInvocationContext.java:106)
at com.ibm.servlet.engine.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:160)
at com.ibm.servlet.engine.oselistener.OSEListenerDispatcher.service(OSEListener.java:300)
- 5
- AGLOCO- this worries GoogleHi,
AGLOCO- this worries Google
Bill Gates thinks Google should be worried!
-------------------------------------------
You must have heard by now about Agloco and how many people think it
is going to be bigger than Google... Now Bill Gates is on record
saying they have a great business model and that Google should be
worried.
Google search result produce - 1,400,000 web pages for Agloco.
Google makes billions of $$$ and keeps it all for itself... Agloco
one
day is going to also make billions of $$$ except it will be completely
shared out to its members!
You make money with Agloco by using your computer as you would
normally!
Plus Agloco has a great referral pakage!
So start building your network!
Join AGLOCO - Own the Internet! click on this...
www.agloco.com/r/BBCD7223
It's all over the blogosphere and Bill Gates has been quoted as
saying he believes it "will be the next big thing to hit the
internet", so
what is Agloco and will they really pay you for surfing the net?
I too was sceptical when I heard about it but after spending a few
hours googling and reading about it, I have not only come round to the
idea but am now thinking it could really work and could really make
us (that's me and all of you who are reading this) some money.
regards,
Ketan Arora
www.agloco.com/r/BBCD7223
- 5
- file-include question.."maya" <email***@***.com> wrote...
> if I'm in a webapp called "photoblog", for example, if I do
>
> <%@ page errorPage="/errHandler.jsp"%>
>
> it works fine; if I do
>
> <%@ page errorPage="/photoblog/errHandler.jsp"%>
>
> I get an error..
> (this happens both on my personal stuff in Tomcat and my stuff @ work
> on weblogic..)
This is handled by the JSP container, i.e. on the server side.
The path is hence relative to the JSP application.
> within same webapp I have:
>
> <link rel="stylesheet" type="text/css"
> href="/photoblog/css_default.css">
>
> for this one I do need webapp-name in path, otherwise it does not read css
> stylesheet..
css is not JSP includes, but is part of the plain webbrowsing, i.e. handled
from the *client* side.
css is "requested for" by the the browser, i.e. the path is relative to the
visible url.
> can someone enlighten me here?
I hope I have.
/// Bjorn A
- 5
- What is a "dirty read" ?Hi group,
I am new to JDBC but have idea about Oracle transaction management. I
am confused about JDBC documentation saying "dirty read"s allow
changes made by a trasaction visible to another before it is
committed. What does this mean ? Does it mean that the concurrent
transaction can be from different connections ? If so how is it
possible ? I believe read dirty reads are reads from dirty blocks
which is accessible only by this session.
TIA
Pramod R
- 6
- Can't locate JavaxHi,
I am using DrJava, and I am writing a program that has the following
statement:
import javax.swing;
It gives me this error when compiled:
File: C:\Program Files\DrJava\CustomJFrame.java [line: 1]
Error: package javax does not exist
I did set my classpath variable to:
c:\j2sdk1.4.2\lib\tools.jar;C:\j2sdk1.4.2_01\src\javax
where C:\j2sdk1.4.2_01\src\javax is where javax is located.
What am I doing wrong?
- 8
- Equivalent items in JavaI know a bit in Windows (.net) development. I would like to find out
the equivalent component of the below components. Anyone has
suggestions?
ASP -->
VB.NET, C# -->
MS SQL -->
IIS -->
NT server -->
THX a lot!
- 9
- j2ee request resource is not available hello1Hi all,
I have found a solution to a problem that I would like to share.
I am running WindowsXP and J2EE sdk 1.3.1.
I was trying to run the Hello1 servlet example from the J2EE examples
from sun. I found this error message: j2ee request resource is not
available
Then I solved this problem by opening the application in deploytool:
Filling in the following fields:
Hello1App: WebContext-> WAR File = Hello1WAR; ContextRoot = hello1
GreetingServlet -> aliases = /greeting
ResponseServlet -> aliases = /response
This solved the problem and it was running fine.
Hope it helps,
Satyajit
- 10
- Why do JARs made with JBuilder 2006 Enterprise not work outside IDE???Hi all,
I have written a program in JBuilder 2006 Enterprise (Win NT, JRE 1.5)
which works perfectly within the IDE.
However, when I use JBuilder to create a JAR of my project and then try
to run in from the command line it throws the run-time exception
below...
Exception in thread "main" java.lang.SecurityException: class
"Com.package.MyPackage.MyExcpetion"'s signer information does not match
signer information of other classes in the same package
I have used JARs before but never come across this sort of error, maybe
worth adding that the program uses JavaMail to send emails.
More confusing, why does it work in JBuilder, but not outside?!?
Any help would be greatly appreciated, i am stumped!
A
- 10
- Can't avoid "References to generic type List<E> should be parameterized" warning here can I ?Hi,
I'm writing some kind of gateway between 2 packages, whose a
few classes have the same name (I need to bind these classes).
So I'm retrieving the attributes of my source class1 and set my
equivalent class2 in the other pkg with these attributes when
methods names -and attributes- match.
Excerpt from my method:
1 public my.persistent.Pst mapFromProtocol(my.protocol.Pst src)
2 {
3 my.persistent.Pst target = new my.persistent.Pst();
4 for (Iterator<my.protocol.Remark> it =
src.getRemark().iterator(); it.hasNext(); )
5 target.getRemark().add(it.next());
6
7 ... //many other attributes/objects to set too
8
9 return target;
10 }
In RAD the line 5 is underlined in yellow and it says "Type safety:
The method add(Object) belongs to the raw type List. References
to generic type List<E> should be parameterized".
Is there a way to avoid this warning in my case, as I can't
instantiate
a List<Remark> lr = new ArrayList() of course... (because I have no
method setRemark() in target)
Thanks.
Regards,
Seb
- 15
- Tool to draw class relatinoship diagrams from a package ?> Do you know a free package that I could use to draw the
> inheritance/implementation relationships from a package ? Something
> like this: I give it the top dir for a package and it produces a
> diagram.
there is one plugin for Intellij IDEA that do such things.
____________
http://reader.imagero.com the best java image reader.
- 15
- Simple java question...Hi guys,
please help me with this simple java question.
I'm developing a jsf application but i have a java question.
Suppose i have an authentication bean with 3 attributes,login,password
and team that load the values inserted in a login page.
In another bean i have a method that performs inserting an experiment
into a db.
My prepared statement is like...
pst2.setString(1, name);
pst2.setString(2, team);
pst2.setString(3, platform);
etc...
but i want name is the login attribute and team the team attribute of
authenticationBean.
How can i pass these values to my pst.2setString?
Please help me
- 15
- Policy ideas (Was: Re: java2-runtime)Charles Fry <debian <at> frogcircus.org> writes:
>
> Does this mean that bugs should be filed with packages which provide or
> depend on java-runtime (I noticed a few)?
>
> Should bugs be filed with kaffe, which as Peter pointed out does not
> provide any java runtime?
>
> Is there any reason why java1-runtime and java2-runtime are the official
> runtimes, whereas java-compiler and java2-compiler are the official
> compilers? This inconsistency does not seem helpful in establishing
> consistency within the runtimes.
Yeah, I think the policy should be consolidated, since java 1.1 is (for all I
know) not packaged or availiable in Debian. Java-package supports nonfree
runtimes starting from 1.3 and above. I assume that most of the software
packaged in Debian these days will require a pretty modern runtime anyway.
So, I'd suggest that the java(X)-runtime virtuals are removed in favour of a
general "j-word-runtime" virtual to be provided by all runtimes capable of
running programms written in the Java programming language.
I propose using "j-word" instead of "java", because that is a time-honoured way
of abbreviating four letter words that can not be said freely in English.[1]
cheers,
dalibor topic
[1] As Sun Microsystems holds and and actively defends their Java(TM) trade
mark, I would not recommend calling Kaffe a Java(TM) runtime, because, frankly,
according to Sun Microsystem's rules for the usage of the trade mark, it is not
a Java(TM) runtime.
And that's fine by me, I don't feel that trying to rub off Sun's trade mark
investment is a fair thing to do.[2] You can see on the kaffe.org web site how
the Kaffe project tries to draw a clear line between Kaffe and Sun Microsystem's
implementation. In order to avoid confusing people who dearly want the "Java(TM)
Desktop System" GNU/Linux distribution, for example, rather than a free software
runtime environment for programms written in the Java programming language (that
is a safe use of the term "Java", btw. ;).
[2] Just like I don't feel that Sun Microsystems attempts to market some of
their clearly proprietary software as Open Source are a fine thing to do, like
they tried to do with Java3D or JAI. See my comment at
http://weblogs.java.net/blog/editors/archives/2005/02/working_with_th.html for a
reference.
--
To UNSUBSCRIBE, email to email***@***.com
with a subject of "unsubscribe". Trouble? Contact email***@***.com
- 16
- Action selected state in JDK 1.5Hello all!
Does anyone know of or have a solution of how to have automatic
updates for buttons and menu items created from Action's FOR JDK 1.5?
I know that automatic support for it was added in JDK (1.)6.0, however
the requirements for the software I'm developing is Java 5...
When calling new JMenuItem(Action) or JButton(Action), basically any
radio button or checkbox AbstractButton component, calling setEnabled
an the action turns the button AND menu items to gray. I would simply
like to achieve that for the selected state as well: Whenever the user
clicks on a toolbar button OR menu item, the selected state shall be
reflected in the other GUI component, too. As stated above, a solution
is inside the "too new" JDK6.
So, has anybody implemented a solution for this? Maybe some
AbstractAction subclass?
Any help on this appreciated! (directions etc.)
TIA
Karsten
|
| Author |
Message |
Sean M. Tucker
|
 Posted: 2004-6-20 3:47:00 |
Top |
java-programmer, rs-232
Anyone know how to echo characters over an rs-232 serial interface? Thanks.
-Sean M. Tucker
|
| |
|
| |
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| |
|
Index ‹ java-programmer |
- Next
- 1
- window basis..Jep!
I think i need a good tutorial here,
would please receive few links, in need to get familiar with window opening,
sizening and drawing images on it..
Yours : JariTapio
Homepage : www.EuroJari.net
EMail : email***@***.com
- 2
- .Net: 3 Years of the 'Vision' Thingasj wrote:
> Ben wrote:
>>
>> Here here!
>
>
> i believe that's "hear! hear!"
>
> and i ask again:
>
> "really? so where are most of the c#/.net people coming from? what
> with all the questions from vb and other microsoft developers around
> here, sure sounds like a mass migration of the herd from vb and other
> older microsoft tech to c# and other .net.....and that sounds like
> pure cannibalism of old by the new to me."
I think you're clutching at straws here, so what if people using dotnet were
using VB6 or C++ in the past to do development?
- 3
- Write PNG from MemoryImageSourceI have an application which dynamically generates images using
MemoryImageSource to produce a java.awt.Image object. I'd like to be
able to write these images out as pngs.
I've found the javax.imageio class which will write out pngs, but only
from a BufferedImage and not from a basic Image. I've not been able to
find a way to create a BufferedImage from an Image.
Can anyone suggest how I can write out these images?
Cheers
Simon.
- 4
- extends DefaultTableModel ???Hi
I have an exception of the line "return content.size();" in
getRowCount(), it said the vector content is null. But if i extends
the AbstractTableModel rather than DefaultTableModel, no exception,
please tell me why?
thanks
from Peter
public class MyTableModel extends DefaultTableModel {
String columnNames[] = {"1", "2", "3", "4", "5"};
Vector content=new Vector();
public MyTableModel() {
}
public int getColumnCount() {
return columnNames.length;
}
public String getColumnName(int col) {
return columnNames[col];
}
public Object getValueAt(int row, int column) {
"Peter"
}
public int getRowCount() {
return content.size();
}
}
- 5
- "no cmp field defined in cmp ejb"I'm so boring I know... this is my problem...
I wrote the following entity bean, it rappresents something like this:
primary key id (managed by the container)
foreign key formulation_product (cmp relationship field)
foreign key ingredient (cmp relationship field)
public abstract class FormulationComponentBean implements EntityBean {
/* Relationship field getters */
public abstract FormulationProduct getFormulationProduct();
public abstract Ingredient getIngredient();
/* Relationship field setters */
public abstract void setFormulationProduct(FormulationProduct product);
public abstract void setIngredient(Ingredient ingredient);
[...create methods and others ejb* methods...]
}
When I try to autogenerate database table with Sun Deploytool I get this
error message: "no cmp field defined in cmp ejb".
I really do not need any persistent field, but only relationship field...
should I insert a fake persisten field just to satisfy that silly utility?
Or I am wrong on something?
Thanks a lot for any help...
- 6
- 7
- Preventing URLConnection from buffering entire output streamIn my client application, I upload huge files via HTTP.
The URLConnection class seems to automatically buffer
the entire contents, then when the OutputStream associated with
the URLConnection is closed, it computes the length
and prepends a Content-Length header before actually sending
any bytes to the web server.
This results in an OutOfMemoryException when the file is huge.
My application uses Transfer-Encoding: chunked, but
that doesn't help when the entire stream gets buffered anyway.
Is there a way around this without writing my own URLConnection
clone based on Sockets? Calling flush() on the OutputStream
seems to have no effect.
I understand that a workaround would be to use the new features
of Java 1.5, but that's too new to expect end users to have.
Any help would be appreciated.
Thanks!
Mark Riordan
Note: email address in header, email***@***.com, must have
"NoSpam" removed.
- 8
- Reverse Engineer UML Diagrams From Source CodeI'm looking for a good tool that can automatically generatre UML
diagrams from source code.
I know Together can do this, but it's rather expensive....
I was hoping for something open source. What are my options? What
should I be considering? I plan to use it mainly for personal use for
building medium sized applciations.
I also found this one:
http://jrefactory.sourceforge.net/
Has anyone used it?
TIA,
cpp
- 9
- Drawing on TabsHi all - I have an application where my main frame has a tabbed interface,
and each tab has a JPanel.
I would like to draw a line graph on the second tab (the first tab is where
data is entered) and a bar graph on the second tab.
The problem I have is how to draw on the second or 3rd tabs.
I googled and one solution was to subclass the JPanel and then override the
paintComponent() method. I tried but it doesn't seem to work. I am probably
just doing it wrong.
How would I go about defining/extending the JPanel class? or is there some
other container that would serve this purpose better?
Any help is appreciated.
(remove the +NOSPAM from my email address...)
- 10
- Secure FTP API for Java ReleasedMyJavaWorld.com is pleased to announce the release of Secure FTP API
for Java, an API that allows you to add secure file transfer
capabilities to your Java applications. Some of the features of Secure
FTP API for Java are:
Complete implementation of the File Transfer Protocol as defined RFC
959
Support for secure file transfer using SSL/TLS as defined in RFC 2228.
Both Explicit and Implicit SSL connections are supported.
Extendable architecture to support legacy/non-standard FTP servers
Event notification to notify the connection and transfer evens to
interested objects.
Support for active and passive data transfers
Support for ASCII and Binary data types
Set the time outs and buffer size to use for the control and data
connections
And many more...
Check it out at http://www.myjavaworld.com
Regards
Sai Pullabhotla
- 11
- my JEditorPane.read() method is never referenced, why?[code]
public class SimpleHTMLRenderableEditorPane extends JEditorPane {
// borrowed from http://www.java2s.com/Code/Java/Swing-JFC/JEditorPaneandtheSwingHTMLPackage9.htm
protected String getNewCharSet(ChangedCharSetException e) {
String spec = e.getCharSetSpec();
if (e.keyEqualsCharSet()) {
// The event contains the new CharSet
return spec;
}
// The event contains the content type
// plus ";" plus qualifiers which may
// contain a "charset" directive. First
// remove the content type.
int index = spec.indexOf(";");
if (index != -1) {
spec = spec.substring(index + 1);
}
// Force the string to lower case
spec = spec.toLowerCase();
StringTokenizer st = new StringTokenizer(spec, " \t=", true);
boolean foundCharSet = false;
boolean foundEquals = false;
while (st.hasMoreTokens()) {
String token = st.nextToken();
if (token.equals(" ") || token.equals("\t")) {
continue;
}
if (foundCharSet == false && foundEquals == false
&& token.equals("charset")) {
foundCharSet = true;
continue;
} else if (foundEquals == false && token.equals("=")) {
foundEquals = true;
continue;
} else if (foundEquals == true && foundCharSet == true) {
return token;
}
// Not recognized
foundCharSet = false;
foundEquals = false;
}
// No charset found - return a guess
return "8859_1";
}
public void read(InputStream in, Object desc) {
System.out.println("do you see this?");
try {
super.read(in, desc);
} catch (ChangedCharSetException e) {
String charSet = getNewCharSet(e);
System.out.println("charSet = " + charSet);
try {
in.reset();
InputStreamReader reader = new InputStreamReader(in,
charSet);
super.read(reader, desc);
} catch (ChangedCharSetException ee) {
System.out.println("huh?");
} catch (IOException ee) {}
} catch (IOException e2) {}
}
}
[/code]
Per reference in http://kickjava.com/348.htm I am having to overwrite
JEditorPane.read() with my own method, I still get
ChangedCharSetException thrown when it should have been captured and
you should have at least seen something in output, yet you see noting
whatsoever except the ChangedCharSetException when you do this line:
[code]
// browser IS OF TYPE
SimpleHTMLRenderableEditorPane
browser.read(
new BufferedReader(new
StringReader(browser.cleanHTML(getURL()))),
browser.getDocument()
); // SimpleHTMLRenderableEditorPane HAS
METHOD cleanHTML(URL url) WHICH NEVER THROWS ChangedCharSetException
[/code]
Why is it that my method appears to never be referenced and the
default read() method in JEditorPane is referenced instead? Ideas?
Thanks
Phil
- 12
- casinos/lasvegas<HTML>
<HEAD>
<META NAME="GENERATOR" Content="Microsoft DHTML Editing Control">
<TITLE></TITLE>
</HEAD>
<BODY>
<P>Las Vegas / Casino domains for sale in <A
href="http://www.supernet.biz">www.supernet.biz</A> !!!</P>
<P>****************************************************</P>
<P>casinos.com.lv (Casinos Com "Las Vegas")</P>
<P>slots.lv (Slots "Las Vegas")</P>
<P>bet.com.lv (Bet Com "Las Vegas")</P>
<P>nevada.com.lv (Nevada Com "Las Vegas") </P>
<P>poker.com.lv (Poker Com "Las Vegas")</P>
<P>roulette.com.lv (Roulette Com "Las Vegas")</P>
<P>gambling.com.lv (Gambling Com "Las Vegas")</P>
<P>blackjack.com.lv (BlackJack Com "Las Vegas")</P>
<P>jackpot.com.lv (Jackpot Com "Las Vegas")</P>
<P>videopoker.lv (VideoPoker "Las Vegas")</P>
<P>videopoker.com.lv (VideoPoker Com "Las Vegas")</P>
<P>resort.lv (Resort "Las Vegas")</P>
<P>cash.lv (Cash "Las Vegas")</P>
<P> </P>
<P>for details or for MORE domains go to: <A
href="http://www.supernet.biz">www.supernet.biz</A> </P>
<P> </P>
<P> </P>
</BODY>
</HTML>
- 13
- RMI newbieI am tring to learn rmi and having some problems
Why when I call getStockPrice on the client side does it print the starting
value (1.34) and no the current value that prints out on the server side
from the System.out.println statements?
public class Stock
{
private String Name;
private double value;
Stock(String name, double val)
{
this.Name=name;
this.value=val;
}
public double getvalue()
{
return value;
}
public void setvalue(double val)
{
this.value=val;
}
public String getname()
{
return Name;
}
}
import java.util.*;
import java.rmi.*;
import java.rmi.registry.*;
import java.net.MalformedURLException;
public class StockClient
{
public static void main(String args[])
{
String name="A";
try {
StockInterface a = (StockInterface)
Naming.lookup("rmi://localhost:41111/StockImpl");
System.out.println("price of "+ name + " is " +
a.getStockPrice(name));
}
catch (Exception re)
{
System.out.println(re);
}
}
}
import java.rmi.*;
import java.util.*;
import java.rmi.server.*;
import java.net.MalformedURLException;
public class StockImpl extends UnicastRemoteObject
implements StockInterface
{
private ArrayList<Stock> list;
public StockImpl() throws RemoteException
{
list=new ArrayList<Stock>();
list.add(new Stock("A",1.34));
list.add(new Stock("B",0.84));
list.add(new Stock("C",5.04));
list.add(new Stock("D",2.03));
list.add(new Stock("E",5.00));
list.add(new Stock("F",7.00));
list.add(new Stock("G",11.34));
list.add(new Stock("H",2.40));
list.add(new Stock("I",8.21));
list.add(new Stock("J",1.45));
}
public void sim()
{
Random rand =new Random();
Stock temp;
int abc=rand.nextInt(list.size());
temp=list.get(abc);
System.out.println(temp.getvalue() + " rand = "+abc);
temp.setvalue(temp.getvalue()+rand.nextDouble());
System.out.println(temp.getvalue());
}
public double getStockPrice(String Name) throws RemoteException
{
Stock temp;
//System.out.println("List size "+list.size());
//System.out.println("Name "+Name);
for(int i=0;i<list.size();i++)
{
temp = list.get(i);
if(Name.compareTo(temp.getname())==0)
{
return temp.getvalue();
}
}
return -1.0;
}
public ArrayList<Stock> getlist()
{
return list;
}
public static void main(String args[])
{
//System.setSecurityManager(new RMISecurityManager());
try {
StockImpl server = new StockImpl();
Naming.rebind("rmi://localhost:41111/StockImpl",server);
System.out.println("Created and registered StockImpl object");
StockImpl a= new StockImpl();
while(true)
{
a.sim();
try{ Thread.sleep(100); }
catch(Exception e) { }
System.out.println("Out "+a.getStockPrice("A"));
}
}
catch (RemoteException re) { }
catch (MalformedURLException me) { }
}
}
import java.rmi.*;
public interface StockInterface extends java.rmi.Remote
{
double getStockPrice(String Name) throws RemoteException;
}
- 14
- Unexpected Signal : 11 occurred at PC=0x2845BB2FHi ,
Just reporting this core dump from my web application
Regards
Samuel Jackson
----------------------------------------------
root@ds226# more hs_err_pid77432.log
Unexpected Signal : 11 occurred at PC=3D0x2845BB2F
Function=3Dfollow_stack__9MarkSweep+0x3F
Library=3D/jdk1.4.2/jre/lib/i386/client/libjvm.so
Dynamic libraries:
0x8048000 /usr/local/jdk1.4.2/bin/java
0x2806c000 /usr/local/lib/libc_r.so.4
0x28123000 /jdk1.4.2/jre/lib/i386/client/libjvm.so
0x2866a000 /usr/local/lib/libstdc++.so.3
0x286af000 /usr/local/lib/libm.so.2
0x286ca000 /jdk1.4.2/jre/lib/i386/native_threads/libhpi.so
0x286d8000 /jdk1.4.2/jre/lib/i386/libverify.so
0x286f3000 /jdk1.4.2/jre/lib/i386/libjava.so
0x28714000 /jdk1.4.2/jre/lib/i386/libzip.so
0x34fb2000 /jdk1.4.2/jre/lib/i386/libnet.so
0x2804e000 /usr/libexec/ld-elf.so.1
Heap at VM Abort:
Heap
def new generation total 2304K, used 256K [0x2c5b0000, 0x2c830000, =
0x2ca90000)
eden space 2048K, 0% used [0x2c5b0000, 0x2c5b0000, 0x2c7b0000)
from space 256K, 100% used [0x2c7f0000, 0x2c830000, 0x2c830000)
to space 256K, 0% used [0x2c7b0000, 0x2c7b0000, 0x2c7f0000)
tenured generation total 31080K, used 30993K [0x2ca90000, 0x2e8ea000, =
0x305b0000)
the space 31080K, 99% used [0x2ca90000, 0x2e8d4488, 0x2e8d4600, =
0x2e8ea000)
compacting perm gen total 14336K, used 14218K [0x305b0000, 0x313b0000, =
0x345b0000)
the space 14336K, 99% used [0x305b0000, 0x31392af8, 0x31392c00, =
0x313b0000)
Local Time =3D Sat Nov 27 13:30:41 2004
Elapsed Time =3D 63665
#
# HotSpot Virtual Machine Error : 11
# Error ID : 4F530E43505002F1
# Please report this error to
# email***@***.com mailing list
#
# Java VM: Java HotSpot(TM) Client VM (1.4.2-p6-root_19_aug_2004_10_42 =
mixed mode)
#
_______________________________________________
email***@***.com mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-java
To unsubscribe, send any mail to "email***@***.com"
- 15
- Jedit: Error about MouseWheelListenerI installed the same Jedit archive on Windows and on HP-UX (with
JavaVM-1.3). On
Windows, it runs fine. On Unix, I get the following error message on
startup:
java.lang.NoClassDefFoundError: java/awt/event/MouseWheelListener
Could it be that something is missing in my CLASSPATH? Where is the
MouseWheelListener
supposed to be? I thought this class was added in 1.4, but note that
the
installation notes for JEdit say that it can run under Unix with Java
1.3.
Ronald
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