comp.lang.java.programmer http://groups-beta.google.com/group/comp.lang.java.programmer [EMAIL PROTECTED]
Today's topics: * the troubles with Java on old Win CE device. - 2 messages, 2 authors http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/2a25ce1189dd5c24 * Attributes always empty when parsing XML documents - 1 messages, 1 author http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/f93920023b216158 * ide sugestions for j2me dev - 1 messages, 1 author http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/95ffdcc28f2b1a33 * 'A'++ == 'B': Always True? - 5 messages, 2 authors http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/bb79b41e32f311b2 * PreparedStatement can't handle "IN" in "WHERE" clause - 1 messages, 1 author http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/2210b34eda18992b * Calendar.getInstance() wrong?? - 1 messages, 1 author http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/f3454bcad8dd780c * What is package cache in a jar file - 1 messages, 1 author http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/dec0c6e21c7d3f0b * poblem with Java ( XP SP2) - 2 messages, 2 authors http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/9671bb3935502091 * Environment variable - 3 messages, 3 authors http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/e10a85f420f52962 * Open Source library for Data validation and Mapping using XML config file - 1 messages, 1 author http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/dc6337f258814da8 * Character Encoding of a DOM object - 1 messages, 1 author http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/989f73fe61ccf13b * generate the actual month - 1 messages, 1 author http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/496cc429e694ff9e * Why my servlet always be loaded for three times? - 1 messages, 1 author http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/41db7d702e514554 * Java on Linux - 1 messages, 1 author http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/b359a0d20324fdbe * Need as much help as possible - 1 messages, 1 author http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/7c8e64b34d7154d8 * jvm wont start - 2 messages, 2 authors http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/e7908b9ab87f83ff * Hardware spec published? - 1 messages, 1 author http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/de3a1ca8e469825c * Windows services with java - 1 messages, 1 author http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/3970ff12276a4be5 * How secure is Java? - 1 messages, 1 author http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/38d2eda5f6def0e3 * What's wrong with BasicArrowButton? - 1 messages, 1 author http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/e6d7b9492ffcaa1a * Receiving TAG attribute values in JSP - 1 messages, 1 author http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/24f7514e14a312d9 ========================================================================== TOPIC: the troubles with Java on old Win CE device. http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/2a25ce1189dd5c24 ========================================================================== == 1 of 2 == Date: Wed, Nov 17 2004 7:33 am From: "Michael Shestero" <[EMAIL PROTECTED]> I have an old Windows CE 2.1 device with MIPS CPU. The only one VM I have found for this device is pocket-Java 1.0 (Sun). There was probably some VM by Micorsoft, but I cannot find it (MS annihilated every mention about it on the site). I found that classes created by default Java compiler (from JDKs) don't work: the message "class XXX is not found" appeared. But classes created by Jikes compiler works fine. I have no idea why does it happend. Are several specifications of class-files existed? Classes that was created by Jikes are larger in size... Perhabs I should turn some option in compiler? The second problem is that there is no Swing library included into that VM. I hope it is nevertheless possible to use the Swing there if I recompile it all using Jikes. But I cannot find the good sources of Swing in the Net. I would be glad to have several ones. Now I have only one, and it doesn't want to compile even with standart compiler. I have got also SwingGW sources, but I see they depended on several libraries that is given without sources and used the platform-depended binaries, so it will scarcely work under Win CE. Michael == 2 of 2 == Date: Wed, Nov 17 2004 7:33 am From: Michael Borgwardt <[EMAIL PROTECTED]> Michael Shestero wrote: > I have an old Windows CE 2.1 device with MIPS CPU. > The only one VM I have found for this device is pocket-Java 1.0 (Sun). There > was probably some VM by Micorsoft, but I cannot find it (MS annihilated > every mention about it on the site). > I found that classes created by default Java compiler (from JDKs) don't > work: the message "class XXX is not found" appeared. But classes created by > Jikes compiler works fine. > I have no idea why does it happend. Are several specifications of > class-files existed? Yes. > Classes that was created by Jikes are larger in size... > Perhabs I should turn some option in compiler? Yes, specifically the -target 1.1 option Not sure if that will run if the JVM really only supports Java 1.0 > The second problem is that there is no Swing library included into that VM. > I hope it is nevertheless possible to use the Swing there if I recompile it > all using Jikes. No, that won't work. But including the old Swing JARs, from the time when it was distributed separately might. You can find that old release here: http://java.sun.com/products/archive/jfc/1.1.1/index.html Or maybe this older version fits your JVM better: http://java.sun.com/products/archive/jfc/1.0.3/index.html ========================================================================== TOPIC: Attributes always empty when parsing XML documents http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/f93920023b216158 ========================================================================== == 1 of 1 == Date: Wed, Nov 17 2004 7:25 am From: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> A DOM parser is usually easier to use, but be aware that it sucks in the whole document before giving you a look at it (which could cause problems when processing very large documents). ========================================================================== TOPIC: ide sugestions for j2me dev http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/95ffdcc28f2b1a33 ========================================================================== == 1 of 1 == Date: Wed, Nov 17 2004 7:25 am From: "duckling" <[EMAIL PROTECTED]> don't know if i can help 'coz i'm using a 'heavy ass computer with 512Mb'. But for those looking for suggestions, I'm using eclipse with the EclipseME plugin. and sun's WTK2.1 of course... "Mike Crabs" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > can anyone recommend an ide that does not require some kind of super > computer to be able to use it. > > i'de like to dabble in j2me development - which is to make little tiny > thin kvm running applications - and all the ide's ive seen require > some kind of heavy ass computer with 512 mb of ram and shit like that. > Why the fuck do you need a mainframe to develope kvm shit. > > help me out comrads > > tyia ========================================================================== TOPIC: 'A'++ == 'B': Always True? http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/bb79b41e32f311b2 ========================================================================== == 1 of 5 == Date: Wed, Nov 17 2004 7:28 am From: Chris Smith <[EMAIL PROTECTED]> Michael Borgwardt wrote: > Chris Smith wrote: > > The only case where your program would produce different output is in > > the unlikely event that the system default encoding doesn't actually > > represent one or both of the characters 'A' and 'B'. > > But this would only matter during compilation. Once the program is compiled, > it will produce the same results on any standards-conforming JVM. No, that's not true. Use of the platform default encoding is one of several ways of introducing platform-dependency to a Java application. System.out is an instance of PrintStream which is initialized to the platform default encoding. The actual bytes sent to standard output are dependent on that encoding. As I said, it's unlikely to be an issue when there are ASCII characters involved, since very few encodings omit them. -- www.designacourse.com The Easiest Way To Train Anyone... Anywhere. Chris Smith - Lead Software Developer/Technical Trainer MindIQ Corporation == 2 of 5 == Date: Wed, Nov 17 2004 7:38 am From: Michael Borgwardt <[EMAIL PROTECTED]> Chris Smith wrote: >>>The only case where your program would produce different output is in >>>the unlikely event that the system default encoding doesn't actually >>>represent one or both of the characters 'A' and 'B'. >> >>But this would only matter during compilation. Once the program is compiled, >>it will produce the same results on any standards-conforming JVM. > > > No, that's not true. OK, it might influence what actually shows up on STDOUT, but values in the program itself would not be affected (they might be, during compilation). == 3 of 5 == Date: Wed, Nov 17 2004 7:44 am From: Chris Smith <[EMAIL PROTECTED]> Michael Borgwardt wrote: > OK, it might influence what actually shows up on STDOUT, but values in the > program itself would not be affected (they might be, during compilation). Yes, that's true. I don't understand your point about compilation. Are you referring to the possibility that Fritx intends to write the code that he posted, but doesn't because of platform encoding issues? That's even more tenuous, because it's really impossible to write Java code in a language that doesn't have at least the basic ASCII characters (even Unicode escapes require a backslash and the letter u). -- www.designacourse.com The Easiest Way To Train Anyone... Anywhere. Chris Smith - Lead Software Developer/Technical Trainer MindIQ Corporation == 4 of 5 == Date: Wed, Nov 17 2004 7:54 am From: Michael Borgwardt <[EMAIL PROTECTED]> Chris Smith wrote: >>OK, it might influence what actually shows up on STDOUT, but values in the >>program itself would not be affected (they might be, during compilation). > > > Yes, that's true. I don't understand your point about compilation. Are > you referring to the possibility that Fritx intends to write the code > that he posted, but doesn't because of platform encoding issues? I meant that while the unicode code point 'A' is follwed numerically by 'B', the literal 'A' in the source code could theoretically end up not being turned into the unicode character 'A', if the compiler uses some sort of really weird encoding. > That's > even more tenuous, because it's really impossible to write Java code in > a language that doesn't have at least the basic ASCII characters (even > Unicode escapes require a backslash and the letter u). Hey, it was *you* who started talking about encodings that don't know 'A'! *are* there actually such pathological cases? OTOH, considering encodings pathological for not including latin letters is kinda ethnocentric... == 5 of 5 == Date: Wed, Nov 17 2004 9:53 am From: Chris Smith <[EMAIL PROTECTED]> Michael Borgwardt wrote: > Hey, it was *you* who started talking about encodings that don't know 'A'! > *are* there actually such pathological cases? I don't know for certain. I have vague memories of a Japanese encoding that cannot represent all ASCII characters... but I'm not sure if it lacks 'A' and 'B' or not. -- www.designacourse.com The Easiest Way To Train Anyone... Anywhere. Chris Smith - Lead Software Developer/Technical Trainer MindIQ Corporation ========================================================================== TOPIC: PreparedStatement can't handle "IN" in "WHERE" clause http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/2210b34eda18992b ========================================================================== == 1 of 1 == Date: Wed, Nov 17 2004 7:54 am From: "Thomas S." <[EMAIL PROTECTED]> salaryman wrote: > DISTINCT id from TheTable WHERE id IN (?) > statement.setString(1, "'1', '2', '3', '4'"); This is right: "DISTINCT id from TheTable WHERE id IN (?,?,?,?)" statement.setString( 1, '1' ); statement.setString( 2, '2' ); statement.setString( 3, '3' ); statement.setString( 4, '4' ); A PreparedStatement does no plain String actions but generates the fitting Parameters for the specific JDBC interface (every interface could use a different synthax for their parameters). Thomas ========================================================================== TOPIC: Calendar.getInstance() wrong?? http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/f3454bcad8dd780c ========================================================================== == 1 of 1 == Date: Wed, Nov 17 2004 8:06 am From: "Ann" <[EMAIL PROTECTED]> "Eric" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > I am using JBuilder 2005 with Tomcat 5 to develop JSPs. Inside my JSP I > have the following code: > > int monthA = Calendar.getInstance().MONTH; > int monthB = new Date().getMonth(); > > monthA is getting the value of 2 (incorrect, it is not March) > monthB is getting the value of 10 (correct, it is November) > > My system clock is correct (WinXPsp2) > > Any ideas why the Calendar class is reporting the incorrect month? > > Thanks in advance. > > -Eric > ------------- try this --------------- Calendar c = Calendar.getInstance(); Y = c.get(Calendar.YEAR); M = c.get(Calendar.MONTH) + 1; D = c.get(Calendar.DATE); System.out.println("Using Today: Y=" + Y + ", M=" + M + ", D=" + D); ========================================================================== TOPIC: What is package cache in a jar file http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/dec0c6e21c7d3f0b ========================================================================== == 1 of 1 == Date: Wed, Nov 17 2004 8:10 am From: "Ann" <[EMAIL PROTECTED]> "HS1" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > Hello all > I know that a jar file is considered as zip file. I see a Jar file that has > a package cache. Could you please tell me the purpose of this "package" or > locate a tutorial about content of a jar file... > Many thanks > SH1 > What is a "package cache" ? ========================================================================== TOPIC: poblem with Java ( XP SP2) http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/9671bb3935502091 ========================================================================== == 1 of 2 == Date: Wed, Nov 17 2004 8:33 am From: [EMAIL PROTECTED] (Ruvim Pinka) Hello! The one java network application work fine under Windows 2000 and XP SP1, but don't work under XP SP2. In the Java Web Start Console i have a follow dump: ===== Java Web Start Console, started *** Java 2 Runtime Environment: Version 1.4.2_03 by Sun Microsystems Inc. AxisFault faultCode: {http://xml.apache.org/axis/}HTTP faultSubcode: faultString: (405)Method not allowed faultActor: faultNode: faultDetail: {}string: return code: 405 [...] (405)Method not allowed at org.apache.axis.transport.http.HTTPSender.readFromSocket(HTTPSender.java:630) at org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:128) at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:71) [...] ===== Does anybody solve such problem ? -- ruv == 2 of 2 == Date: Wed, Nov 17 2004 9:03 am From: Collin <[EMAIL PROTECTED]> > > [...] > (405)Method not allowed > > at > org.apache.axis.transport.http.HTTPSender.readFromSocket(HTTPSender.java:630) > > at > org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:128) > > at > org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:71) > [...] > > ===== > > Does anybody solve such problem ? > Try temporarily turning off the firewall that is included with XP SP2 and see if that helps. ========================================================================== TOPIC: Environment variable http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/e10a85f420f52962 ========================================================================== == 1 of 3 == Date: Wed, Nov 17 2004 8:53 am From: Thomas Weidenfeller <[EMAIL PROTECTED]> Stefan Poehn wrote: > Thanks. It works. Is there a replacement for this method that is not > deprecated, The method should never have been deprecated, and Sun corrected this at some point in time. At least, it is not deprecated in 1.5. > or is it "forbidden" to use environment vars in java? No, why should it? Some people have the argument that environment variables don't exist on all platforms, so such a method is not a good idea. However, this was not a really good reason to deprecate the method. It is possible to provide an entirely conforming implementation on systems which don't have environment variables. The method is supposed to return null if a variable does not exist (which can happen on platforms with environment variables, too). So a compliant implementation on systems without any environment variable would be to always return null - which then correctly indicates that the variable does not exist. Alternatively, VM implementers could provide means to set "environment variables" for a particular VM, e.g. by making the System.Properties (or some other set of properties) available via the getenv() call, too. This would be compliant, because the API spec does not provide a clear definition of what an "environment variable" is supposed to be. Quote "An environment variable is a system-dependent external variable that has a string value." There are other - Java independent - reasons why using environment variables are often not a good idea. Controlling application behavior or configuration via environment variables is a no-no, because this is usually not what a user expects. Users usually don't want their applications to behave differently just because the environment has changed. Instead, application behavior is expected to be deterministic, only depending on the input explicitly provided to the application. Of course, there are exceptions, e.g. Unix users expect that the default printer name is picked up from the PRINTER environment variable, or the default editor form the EDITOR or VISUAL variable. But in general, application configuration should be done via command line options or some configuration file, not via some "hidden" environment variables. /Thomas == 2 of 3 == Date: Wed, Nov 17 2004 9:28 am From: "Stefan Poehn" <[EMAIL PROTECTED]> "Thomas Weidenfeller" <[EMAIL PROTECTED]> schrieb im Newsbeitrag news:[EMAIL PROTECTED] > [...] > There are other - Java independent - reasons why using environment > variables are often not a good idea. Controlling application behavior or > configuration via environment variables is a no-no, because this is > usually not what a user expects. Users usually don't want their > applications to behave differently just because the environment has > changed. Instead, application behavior is expected to be deterministic, > only depending on the input explicitly provided to the application. > > Of course, there are exceptions, e.g. Unix users expect that the default > printer name is picked up from the PRINTER environment variable, or the > default editor form the EDITOR or VISUAL variable. > I can explain in simple words why we want to have an environment variable: every developer has another folder structure on his harddisk. If you need the absolute path to the project, you have to store this path outside your program. This can be done with environment vars or registry entries, and I really do not want to use the registry. (We are working on Windows only and do not need to support other platforms). > But in general, application configuration should be done via command line > options or some configuration file, not via some "hidden" environment > variables. > > /Thomas == 3 of 3 == Date: Wed, Nov 17 2004 11:19 am From: Andrew Thompson <[EMAIL PROTECTED]> On Wed, 17 Nov 2004 18:28:06 +0100, Stefan Poehn wrote: > I can explain in simple words why we want to have an environment variable: > every developer has another folder structure on his harddisk. If you need > the absolute path to the project, you have to store this path outside your > program. This can be done with environment vars or registry entries, .. ..or <http://www.physci.org/codes/javafaq.jsp#path>. HTH -- Andrew Thompson http://www.PhySci.org/codes/ Web & IT Help http://www.PhySci.org/ Open-source software suite http://www.1point1C.org/ Science & Technology http://www.LensEscapes.com/ Images that escape the mundane ========================================================================== TOPIC: Open Source library for Data validation and Mapping using XML config file http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/dc6337f258814da8 ========================================================================== == 1 of 1 == Date: Wed, Nov 17 2004 9:02 am From: [EMAIL PROTECTED] (CompGrmmR) Hi folks, I am looking for a way to do validation and data mapping by picking up the validation rules and mapping rules from an XML config file. I want to do this so that I dont have to recompile the code if there are any changes in validation/mapping for the values. Hence I am looking for some open source utility(like Apache Commons package) to do the foll : - 1) Validate a set of data (say from a msg over the n/w) based on the rules in an XML config file 2) Map this data to a value as specified in an XML config file (i.e to form a java object with the correct mapped values) For part 1) there is already Apache Commons Validator, but I cannot use it for mapping the data to a particular value from an XML config file.. Could you pls suggest any open source library I could use to accomplish the above? Also, any other ideas are welcome.. Thanks ========================================================================== TOPIC: Character Encoding of a DOM object http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/989f73fe61ccf13b ========================================================================== == 1 of 1 == Date: Wed, Nov 17 2004 9:57 am From: [EMAIL PROTECTED] (Rakesh Pandit) "Rakesh Pandit" <[EMAIL PROTECTED]> wrote in message news:<[EMAIL PROTECTED]>... > All: > > How can one find out the character encoding of > a DOM Document after an XML file has been > converted to the DOM object. > > Thanks > > Rakesh Thanks for the reply. Let me try to clarify my question: 1. We have a input xml stream of the type: <?xml version="1.0" encoding = "shift_JIS"?> <TestMessage> </TestMessage> 2. We then create a DOM object out of thr xml stream Document doc = m_docBuilder.parse(xmlstream); 3. We wanted to find out the encoding property of the doc, which should give us the result "shift_JIS". Is their a method to extract this property ? Thanks Rakesh ========================================================================== TOPIC: generate the actual month http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/496cc429e694ff9e ========================================================================== == 1 of 1 == Date: Wed, Nov 17 2004 9:34 am From: Oscar kind <[EMAIL PROTECTED]> [Miren] <[EMAIL PROTECTED]> wrote: > i want to print one calendar object, > i want to make one method with 2 params (motnh and year), and with this two > params to print the month. > Can you help me? I did: I listed all things you need to know about Calendar objects to generate the output you mean. To actually do this is up to you. Unless you mean I should write some code for you. In that case I'm sorry, but my time is extremely limited until the new year. I can't spend any on tutoring. -- Oscar Kind http://home.hccnet.nl/okind/ Software Developer for contact information, see website PGP Key fingerprint: 91F3 6C72 F465 5E98 C246 61D9 2C32 8E24 097B B4E2 ========================================================================== TOPIC: Why my servlet always be loaded for three times? http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/41db7d702e514554 ========================================================================== == 1 of 1 == Date: Wed, Nov 17 2004 10:09 am From: "John C. Bollinger" <[EMAIL PROTECTED]> Duncan wrote: > my web.xml like below > > <servlet> > <servlet-name>TimerAutoRecharge</servlet-name> > <servlet-class>com.unify.voip.control.TimerAutoRecharge</servlet-class> > <load-on-startup>1</load-on-startup> > </servlet> > <servlet> > <servlet-name>AppHandler_system</servlet-name> > <servlet-class>com.unify.voip.control.AppHandler</servlet-class> > <load-on-startup>2</load-on-startup> > </servlet> > <servlet> > <servlet-name>ApplRequestProcessor</servlet-name> > <servlet-class>com.unify.voip.control.ApplRequestProcessor</servlet-class> > <load-on-startup>3</load-on-startup> > </servlet> > > > > <servlet-mapping> > <servlet-name>TimerAutoRecharge</servlet-name> > <url-pattern>/TimerAutoRecharge</url-pattern> > </servlet-mapping> > <servlet-mapping> > <servlet-name>AppHandler_system</servlet-name> > <url-pattern>/AppHandler_system</url-pattern> > </servlet-mapping> > <servlet-mapping> > <servlet-name>ApplRequestProcessor</servlet-name> > <url-pattern>/ClientProcessor</url-pattern> > </servlet-mapping> > > Why all my three servlets are always being loaded for three times when > tomcat server startup? Define what you mean by all three servlets being loaded three times. What is the evidence you have for this? Are you certain you have not deployed multiple copies of your whole webapp? No servlet container should ever maintain more than one live instance of any servlet in any one webapp at any one time, but servlet containers are free to at any time take one servlet instance out of service and replace it with a different instance of the same servlet. Do note also that there is a difference between the JVM loading and initializing the servlet's class on the one hand, and the servlet container instantiating the class and initializing the instance to prepare it for service. It is the latter that load-on-startup should control (but, of course, that requires on the former to have already happened). Does the same thing happen if you remove the load-on-startup specifications? Load-on-startup is rarely (if ever) necessary, except as a crutch for poor webapp design, and I have yet to see an example where it provided significant benefit (despite being unnecessary) to a well-designed webapp. The typical uses of load-on-startup are served better by suitable ServletContextListeners. Among other things, ServletContextListeners have the property that the servlet spec requires that they remain loaded until shutdown of the servlet container -- unlike servlet instances, for which there is no such gurantee. John Bollinger [EMAIL PROTECTED] ========================================================================== TOPIC: Java on Linux http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/b359a0d20324fdbe ========================================================================== == 1 of 1 == Date: Wed, Nov 17 2004 10:37 am From: [EMAIL PROTECTED] (Lesley) Oscar kind <[EMAIL PROTECTED]> wrote in message news:<[EMAIL PROTECTED]>... > Lesley <[EMAIL PROTECTED]> wrote: > > > > I have no clue how to install Java on a Linux box [...] > > The correct procedure depends on your distribution. > > If it is RedHat or another distribution that uses rpm (or can handle it > using alien), you want to download the rpm file from sun (same URL as for > Windows: http://java.sun.com/). The procedure is as follows: > 1. Make the file executable. > 2. Run the file; it creates an rpm file. > 3. As root, install the rpm file in the usual manner. > > If your distribution is something else, use the generic Linux > distribution. This requires a bit more work though: > 1. Make the file executable. > 2. Run the file; it unpacks into a subdirectory. > 3. As root, move the newly created subdirectory to a convenient place, > such as /usr/local . > 4. As root, change the ownership to root.root . > 5. As root, add JAVA_HOME to /etc/profile (adjust the path correctly): > export JAVA_HOME=/dir/to/java > The next part is subjective, but I'd do it thus: > 6. As root, link the binaries to /usr/local/bin to make them generally > available: ln -s ${JAVA_HOME}/bin/* /usr/local/bin/ > 7. As root, link the manual pages to /usr/local/man/man1 to make them > generally available: ln -s ${JAVA_HOME}/man/man1/* /usr/local/man/man1/ > 8. Reload your environment, and you're set. Sorry for the delay in replying but thank you very much for these details. I have SuSE 8.3 on a laptop and am currently running XP on my Athlon box. The Athlon had a few problems when I tried to install Linux on it last year but that was v2.4.10 of the kernel. When I tried to connect the laptop up to the Celeron box I also have something went wrong with the NIC on the Celeron, which had previously thrown a fault after an online update. (SuSE again). I have tried installing Java from the 8.3 distro disks but do not get the javac compiler at all, just the GNU one. I now need to remove all the existing Java and install what I want outside the normal SuSE remit. Interestingly I installed Debian woodyr2 on the Celron box and the ethernet card came back up but I am suspecting my 5-6 year old faithful workhorse is on it's last legs. Anyhow I've downloaded both the Windows and Linux versions of Java 2 SDK 1.4.2-04 with NetBeans and I'll see how that goes. Selecting the right package isn't easy and I noted there's a number of different packages, JS2E has a version 5.0 and a 1.4.2 with Sun being remarkably forthright about what these version numbers refer to on this page http://java.sun.com/j2se/ . And of course v 5,0 is really v 1.5.0 which presumably is in beta? Once again many thanks for your help Regards Lesley ========================================================================== TOPIC: Need as much help as possible http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/7c8e64b34d7154d8 ========================================================================== == 1 of 1 == Date: Wed, Nov 17 2004 10:45 am From: "Virgil Green" <[EMAIL PROTECTED]> "Virgil Green" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > "Thomas G. Marshall" <[EMAIL PROTECTED]> > wrote in message news:[EMAIL PROTECTED] > > Virgil Green coughed up: > > > "Thomas G. Marshall" > > > <[EMAIL PROTECTED]> wrote in > > > message news:[EMAIL PROTECTED] > > >> Rob coughed up: > > >>> dar7yl wrote: > > >>> I'll do it for a bottle of vodka. > > >>> That, or $25 CDN. > > >> > > >> Vodka? Real engineers are powered by Diet Coke. > > >> > > >> By the freaking gallon.... > > > > > > "Diet"? > > > > > > Yech.... only full strength (and original) for me. > > > > > > - Virgil > > > > Diet /is/ full strength. > > For some definition of "full strength". > > > Adding sugar only causes your body to react by > > flooding your system with enough insulin to transfer the sugar through the > > cell boundaries alright, but will also hang around long enough in your > > system to risk putting you to sleep. Or at least largely negate the > affect > > of the caffeine. > > Taste, Marshal, taste... > > - Virgil Oops... sorry. I know someone named Marshal. Didn't mean to address you by last name only and didn't mean to misspell it. - Virgil ========================================================================== TOPIC: jvm wont start http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/e7908b9ab87f83ff ========================================================================== == 1 of 2 == Date: Wed, Nov 17 2004 11:10 am From: Andrew Thompson <[EMAIL PROTECTED]> On Wed, 17 Nov 2004 15:35:50 +0200, jmt wrote: > We had a power failure yesterday and that seem to have stuffed up my > vm.Typing "java" from the command prompt , I get the following error > message : > > Error occurred during initialization of VM > java/lang/NoClassDefFoundError: java/lang/Object That's too bad. ..did you have a question? -- Andrew Thompson http://www.PhySci.org/codes/ Web & IT Help http://www.PhySci.org/ Open-source software suite http://www.1point1C.org/ Science & Technology http://www.LensEscapes.com/ Images that escape the mundane == 2 of 2 == Date: Wed, Nov 17 2004 11:55 am From: Steve Horsley <[EMAIL PROTECTED]> jmt wrote: > Hi guys > We had a power failure yesterday and that seem to have stuffed up my > vm.Typing "java" from the command prompt , I get the following error > message : > > Error occurred during initialization of VM > java/lang/NoClassDefFoundError: java/lang/Object > > Jeff > > Registered Linux user number 366042 Urgh! I would delete and re-install the JVM, I guess. Steve ========================================================================== TOPIC: Hardware spec published? http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/de3a1ca8e469825c ========================================================================== == 1 of 1 == Date: Wed, Nov 17 2004 11:15 am From: "VisionSet" <[EMAIL PROTECTED]> Does sun produce a hardware spec for swing? eg graphics card/cpu specs? -- Mike W ========================================================================== TOPIC: Windows services with java http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/3970ff12276a4be5 ========================================================================== == 1 of 1 == Date: Wed, Nov 17 2004 11:33 am From: [EMAIL PROTECTED] (Tim Jowers) IchBin <[EMAIL PROTECTED]> wrote in message news:<[EMAIL PROTECTED]>... > Presidente wrote: > > Somebody can help me to write a program in Java, which is able to find > > if a Windows service has been started or not. > > I mean, i need to know whether a specified service has been started or > > not, if it isn't runnign i start it. > > Thanks. > Sorry, but I do not think you can do this in java directly. You need > access to some windows API's to do this.. Lazy man's way is to issue "net start" command. Windows Lan Manager calls still give you a full list of services running. Try it with DOS Single Command Line Shell (start->run->cmd). You can go: net start "Event Log" or net stop "Event Log" That's really lazy! Or you can look into Service Control Manager and write some C code. It's fairly trivial as well. Best luck, TimJowers ========================================================================== TOPIC: How secure is Java? http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/38d2eda5f6def0e3 ========================================================================== == 1 of 1 == Date: Wed, Nov 17 2004 11:54 am From: Steve Horsley <[EMAIL PROTECTED]> hiwa wrote: > Do you happen know, what would happen if we, with root privilege, run > an rm -fr / or equivalent by using Runtime#exec() or java.io.File > methods? For a local java application, it would (normally) be allowed to trash your computer this way. An applet run within a browser would (normally) not be allowed to even read files on the disk, certainly not launch other proccesses with root privilege. This is all controlled by a SecurityManager, which all the I/O routines consult for permission before doing I/O. The browser loads a very restrictive SecurityManager before launching an applet. Steve ========================================================================== TOPIC: What's wrong with BasicArrowButton? http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/e6d7b9492ffcaa1a ========================================================================== == 1 of 1 == Date: Wed, Nov 17 2004 12:01 pm From: DeMarcus <[EMAIL PROTECTED]> Why doesn't javax.swing.plaf.basic.BasicArrowButton get the same Look-and-Feel as the rest of the components? I've changed the Look-and-Feel to the Windows L&F, and all the components changed except the BasicArrowButton. How come? /Daniel ========================================================================== TOPIC: Receiving TAG attribute values in JSP http://groups-beta.google.com/group/comp.lang.java.programmer/browse_thread/thread/24f7514e14a312d9 ========================================================================== == 1 of 1 == Date: Wed, Nov 17 2004 12:06 pm From: [EMAIL PROTECTED] (Tauqir Ghani) I am creating a JSP page in which data is received through a TAG library. e.g the value of the variable XYZ is given by the following tag line. <template:variable name="XYZ"> I have to do some processing on the variable XYZ before I display it. Can I do an assignment like <%String MyString=%><template:variable name="XYZ"> <%;%> or is there an alternate way of receiving the variable values in java or javascript from the JSP tags. Thanks in advance ======================================================================= You received this message because you are subscribed to the Google Groups "comp.lang.java.programmer". comp.lang.java.programmer [EMAIL PROTECTED] Change your subscription type & other preferences: * click http://groups-beta.google.com/group/comp.lang.java.programmer/subscribe Report abuse: * send email explaining the problem to [EMAIL PROTECTED] Unsubscribe: * click http://groups-beta.google.com/group/comp.lang.java.programmer/subscribe ======================================================================= Google Groups: http://groups-beta.google.com
