java-programmer >>Java applets and client-side ssl certificates?

Java applets and client-side ssl certificates?

Index ‹ java-programmer

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- 1
 - byte arrays fun...I am using data compression java.util.zip package. My problem is I
 need to do it repeatedly, as in the code below, and am working on very
 large strings. What is the proper way to "nullify" or realease the
 memory that can be freed after using the byte arrays? Does setting
 them to null actually cause that memory (heap? stack?) to be freed? I
 am running out of memory and think this is where it is happening.
 Thanks so much for any help...
 
 Inflater i = new Inflater ();
 i.setInput ( bufferWork );
 byte[] decompressedBuffer = new byte[ maxCountersSize +
 increaseSize ];
 long decompressedReturn = i.inflate ( decompressedBuffer );
 if ( i.getTotalOut () > maxCountersSize ) {
 maxCountersSize = i.getTotalOut ();
 }
 String uncompressedString = new String ( decompressedBuffer,
 i.getTotalOut () );
 i.end ();
 
 then to clean up
 
 decompressedBuffer = null;
- 1
 - database search using LuceneI need example for database search using Lucene.
 
 I found many example Lucene with file but not on Database please guide
 me
 
 Thanks...
- 1
 - javascript - netscapeI've make a simple applet and I must call javascript function.
 With nescape and firefox I've to much problem that I don't understand.
 Must I do some browser's settings ?
 
 import netscape.javascript.*;
 import java.applet.*;
 
 public class ProvaReflect extends Applet {
 
 private JSObject window = null;
 
 public void init(){}
 public void start(){
 JSObject win = (JSObject)JSObject.getWindow(this);
 }
 }
 
 Error:
 
 Java Plug-in 1.5.0_04
 
 .....
 
 netscape.javascript.JSException
 at netscape.javascript.JSObject.getWindow(Unknown Source)
 at ProvaReflect.start(ProvaReflect.java:15)
 at sun.applet.AppletPanel.run(Unknown Source)
 at java.lang.Thread.run(Unknown Source)
 
 --
 Questa ?una firma automatica di MesNews.
 Sito: http://www.mesnews.net
- 2
 - Mysteriously appearing Timer thread does not allow JVM to dieHi All,
 In my application, a "Timer-1" thread seems to appear out of nowhere
 and it does not let the application to shut down. This thread belongs
 to a ThreadGroup that I create within the application and it starts
 while another thread of the same ThreadGroup is executing. I am able to
 pinpoint to fixed block of code during the execution of which, this
 thread appears.
 I did like to know if there is a way I can track and find out where
 this thread is starting from ?
 
 thanks in advance,
 Chandresh
 
 Here is what I get on Ctrl+Brk:
 
 Full thread dump Java HotSpot(TM) Client VM (1.5.0_02-b09 mixed mode,
 sharing):
 
 "Timer-1" prio=5 tid=0x02e37df8 nid=0x9a8 in Object.wait()
 [0x033cf000..0x033cf9
 e8]
 at java.lang.Object.wait(Native Method)
 - waiting on <0x23189cf8> (a java.util.TaskQueue)
 at java.lang.Object.wait(Object.java:474)
 at java.util.TimerThread.mainLoop(Timer.java:483)
 - locked <0x23189cf8> (a java.util.TaskQueue)
 at java.util.TimerThread.run(Timer.java:462)
 
 "DestroyJavaVM" prio=5 tid=0x00037948 nid=0xfc waiting on condition
 [0x00000000.
 .0x0007fae8]
 
 "Low Memory Detector" daemon prio=5 tid=0x00a6dda0 nid=0x95c runnable
 [0x0000000
 0..0x00000000]
 
 "CompilerThread0" daemon prio=10 tid=0x00a6c978 nid=0xb8 waiting on
 condition [0
 x00000000..0x02c0f6c0]
 
 "Signal Dispatcher" daemon prio=10 tid=0x00a6bc10 nid=0x188 waiting on
 condition
 [0x00000000..0x00000000]
 
 "Finalizer" daemon prio=9 tid=0x00a68fd0 nid=0xb88 in Object.wait()
 [0x02b8f000.
 .0x02b8fa68]
 at java.lang.Object.wait(Native Method)
 - waiting on <0x23074288> (a java.lang.ref.ReferenceQueue$Lock)
 at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:116)
 - locked <0x23074288> (a java.lang.ref.ReferenceQueue$Lock)
 at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:132)
 at
 java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159)
 
 "Reference Handler" daemon prio=10 tid=0x00a46af8 nid=0xa2c in
 Object.wait() [0x
 02b4f000..0x02b4fae8]
 at java.lang.Object.wait(Native Method)
 - waiting on <0x23074308> (a java.lang.ref.Reference$Lock)
 at java.lang.Object.wait(Object.java:474)
 at
 java.lang.ref.Reference$ReferenceHandler.run(Reference.java:116)
 - locked <0x23074308> (a java.lang.ref.Reference$Lock)
 
 "VM Thread" prio=10 tid=0x00036318 nid=0x3a4 runnable
 
 "VM Periodic Task Thread" prio=10 tid=0x00a6efe8 nid=0xffc waiting on
 condition
- 4
 - chaning fonts *only* w/ SynthHey all,
 
 I want the same interface appearance I have now, which is the Metal
 LaF, but I just want to make the fonts different. Same style, smaller
 fonts. I installed Synth and have the following XML defined ...
 
 <synth>
 <style id="default">
 
 </style>
 <bind style="default" type="region" key=".*"/>
 </synth>
 
 If I understand this correctly, doesn't this make the font size
 Helvetica 10 (globally using .*) as default, and the rest of the LaF
 should stay the same style, right?
 
 The problem is, this makes the default fonts correct all over my
 application, but the rest of the GUI is completely ... styleless. Is
 there anyway for my menus, buttons, etc... to stay as is using the
 Metal LaF, yet change *only* the font size?
 
 Any help much appreciated.
- 7
 - Help - Emulator package for clientsHi,
 
 I need to a put together a simple J2ME all-inclusive emulator package
 that a non-technical client can extract and run.
 
 I was able to do this with the old Sprint WTK (v2.0) by just including
 the appdb, lib and bin subdirectories with the jad & jar files nested
 in the bin folder.
 
 But, I'm no longer able to get this to work now that I've upraded to
 Sprint WTK 3.0
 
 Can someone suggest another emulator that allows you to neatly package
 an archive for a non-technical client?
 
 This is to present a game primarly developed for Sprint handsets.
 
 Thanks,
 
 Jeremy
- 8
 - greedy methodHello all
 I want to know whether there is any greedy approach for job sequencing
 with variable job completion times..
 if there is no greedy approach how to prove it...
- 9
 - threads/84778: libpthread busy loop/hang with Java when handling signals and Runtime.execThis is still happening on FreeBSD 6.0-STABLE as of 12/6/2005.
 
 World and kernel were compiled without any CPUTYPE or CFLAGS options, as
 was Java.
 
 This problem is trivial to reproduce. One merely has to start httpd.sh in
 Resin 3.0 with no arguments, wait for the JVM to start running, and hit
 ^Z or ^C.
 
 The process then goes into an infinite loop in kse_release. truss -p
 shows the following:
 
 kse_release(0x8056f44) = 0 (0x0)
 kse_release(0x8056f44) = 0 (0x0)
 kse_release(0x8056f4c) = 0 (0x0)
 kse_release(0x8056f44) = 0 (0x0)
 kse_release(0x8056f44) = 0 (0x0)
 kse_release(0x8056f4c) = 0 (0x0)
 
 ktrace shows a bit more detail of the infinite loop:
 
 21357 java CALL gettimeofday(0xbf275e70,0)
 21357 java RET gettimeofday 0
 21357 java CALL gettimeofday(0xbf275ec0,0)
 21357 java RET gettimeofday 0
 21357 java CALL kse_release(0x8056f4c)
 21357 java RET kse_release 0
 21357 java CALL gettimeofday(0xbf275e70,0)
 21357 java RET gettimeofday 0
 21357 java CALL gettimeofday(0xbf275ec0,0)
 21357 java RET gettimeofday 0
 21357 java CALL kse_release(0x8056f4c)
 21357 java RET kse_release 0
 
 gcore -s 21357; gdb /usr/local/jdk14/bin/java core.21357 shows:
 
 Cannot get thread info: generic error
 
 #0 0x4809f1af in pthread_testcancel () from /usr/lib/libpthread.so.2
 #1 0x480a01dd in __error () from /usr/lib/libpthread.so.2
 #2 0x4808adeb in pthread_getschedparam () from /usr/lib/libpthread.so.2
 #3 0x4808feef in pthread_create () from /usr/lib/libpthread.so.2
 #4 0x48465f10 in os::create_thread () from /usr/local/jdk1.4.2/jre/lib/i386/client/libjvm.so
 #5 0x484afb28 in JavaThread::JavaThread () from /usr/local/jdk1.4.2/jre/lib/i386/client/libjvm.so
 #6 0x483f927c in JVM_StartThread () from /usr/local/jdk1.4.2/jre/lib/i386/client/libjvm.so
 
 followed by a smashed-looking stack for about 60 frames, and then:
 
 #65 0x485735c0 in __JCR_LIST__ () from /usr/local/jdk1.4.2/jre/lib/i386/client/libjvm.so
 #66 0x4a3c20d7 in ?? ()
 #67 0xbf073d00 in ?? ()
 #68 0xbf073d48 in ?? ()
 #69 0x4839032b in JavaCalls::call_helper () from /usr/local/jdk1.4.2/jre/lib/i386/client/libjvm.so
 Previous frame inner to this frame (corrupt stack?)
 
 Note that the valid-looking portion of the stack trace still isn't valid
 higher than pthread_create(), though this could have still been a result
 of the process still making calls while gcore was running, since the
 process does not respond to the STOP signal.
 
 I'm inclined to suspect that this is a Java bug, considering the smashed
 stack.
 
 Nick
 
 --
 "The aptly-named morons.org is an obscenity-laced screed..."
 -- Robert P. Lockwood, Catholic League director of research
 Nick Johnson, version 2.1 http://web.morons.org/
- 9
 - JDWP JNI AGENT_ERROR_NO_JNI_ENV MustangFolks,
 
 I'm trying to use Mustang (1.6.0-beta2-b86) and Eclipse 3.2
 
 I'm running a little test application, an ordinary "Java Application"
 project.
 
 Intermittently, perhaps once out of 5 or 10 times, after the program
 runs,
 and after a System.println that it executes as the last statement in
 the
 main() routine, I get the following in the Eclipse console window in
 red
 (i.e., it was presumably written to System.err):
 
 ERROR: JDWP Unable to get JNI 1.2 environment, jvm->GetEnv() return
 code = -2
 JDWP exit error AGENT_ERROR_NO_JNI_ENV(183):
 [../../../src/share/back/util.c:820]
 
 Can't find anything about this anywhere. Anybody have any ideas?
 
 jim g
- 9
 - change color of jList elementHi,
 is there a way to change the foregroundcolor of a single line in a jList?
 
 thanks
 
 Bernd
- 13
 - Powerbuilder and javaCan someone tell me whether Java can access poserbuilder pbd files, and if
 so, how???
- 13
 - Question for WebObjects programmers
 I am in the process of trying to create a new newsgroup specifically for
 the discussion of WebObjects, and I since I have seen some WebObjects talk
 in this newsgroup, I would like to get some feedback on this.
 
 Foremost, is there any interest in a WebObjects-specific newsgroup? Since
 it is a Java-only platform now, can it/should it just be left for
 discussion in comp.lang.java.* newsgroups?
 
 Another question is are there any other newsgroups where WebObjects
 discussion happens? It seems to me that most discussion currently happens
 in Apple's and The Omni Group's mailing lists.
 
 If there was a WebObjects newsgroup, what do you envision it being?
 
 If anyone could give me some feedback so I can polish up my submissions
 to news.groups, I would appreciate it.
- 13
 - objection?hi
 this website http://www.idiom.com/~zilla/Computer/javaCbenchmark.html
 say java is same as or sometime faster than C.
 But why swing is so slow?
 
 thanks
 from Peter (email***@***.com)
- 13
 - [Q] HttpServletRequest.getCookies()Hi,
 
 This method getCookies() returns Cookie[] but I can't understand which
 cookie does it contens
 Only those which refers to the server or all clients cookies ?
- 14
 - Eoror on compile jdk16 on FreeBSD 7.0 amd64Hello, I have problem when I want to compile java/jdk16
 
 This is the last lines of my compilation
 
 WARNING: The directory HOTSPOT_DOCS_IMPORT_PATH=/NO_DOCS_DIR \n
 does not exist, check your value of ALT_HOTSPOT_DOCS_IMPORT_PATH. \n
 WARNING: The bsd compiler must be version 3.3 \n Specifically
 the GCC compiler. \n You appear to be using compiler version:
 4.2 \n The compiler was obtained from the following location:
 \n /usr/bin/ \n Please change your compiler. \n
 WARNING: Importing CUPS from a system location \n Sanity check passed.
 mkdir
 -p /usr/ports/java/jdk16/work/control/build/bsd-amd64/hotspot/outputdir
 mkdir
 -p /usr/ports/java/jdk16/work/control/build/bsd-amd64/hotspot/import
 cd ../../hotspot/make ; \ gmake ALT_SLASH_JAVA=/java
 ARCH_DATA_MODEL=64
 ALT_OUTPUTDIR=/usr/ports/java/jdk16/work/control/build/bsd-amd64/hotspot/outputdir
 ALT_EXPORT_PATH=/usr/ports/java/jdk16/work/control/build/bsd-amd64/hotspot/import
 PREVIOUS_JDK_VERSION=1.5.0 ALT_BOOTDIR=/usr/local/diablo-jdk1.5.0
 FULL_VERSION="1.6.0_03-p4-ddurieux_12_jun_2008_01_18-b00"
 JDK_VERSION=1.6.0_03 COOKED_JDK_UPDATE_VERSION=30 COOKED_BUILD_NUMBER=0
 JDK_MKTG_VERSION=6u3 JDK_MAJOR_VERSION=1 JDK_MINOR_VERSION=6
 JDK_MICRO_VERSION=0 all_product gmake[1]: Entering directory
 `/usr/ports/java/jdk16/work/hotspot/make' gmake VM_TARGET=product
 generic_build2 gmake[2]: Entering directory
 `/usr/ports/java/jdk16/work/hotspot/make' mkdir
 -p /usr/ports/java/jdk16/work/control/build/bsd-amd64/hotspot/outputdir
 cd /usr/ports/java/jdk16/work/control/build/bsd-amd64/hotspot/outputdir;
 \ gmake -f /usr/ports/java/jdk16/work/hotspot/build/bsd/Makefile \
 LP64=1 HOTSPOT_BUILD_VERSION=1.6.0_03-p4-ddurieux_12_jun_2008_01_18-b00
 JAVA_HOME=/usr/local/diablo-jdk1.5.0
 GAMMADIR=/usr/ports/java/jdk16/work/hotspot MAKE_VERBOSE=y product
 gmake[3]: Entering directory
 `/usr/ports/java/jdk16/work/control/build/bsd-amd64/hotspot/outputdir'
 gmake -f /usr/ports/java/jdk16/work/hotspot/build/bsd/Makefile checks
 gmake[4]: Entering directory
 `/usr/ports/java/jdk16/work/control/build/bsd-amd64/hotspot/outputdir' /usr/local/diablo-jdk1.5.0/bin/javap
 javax.xml.transform.TransformerFactory > /dev/null 2>&1; \ if [ $? -ne
 0 ]; then \ /usr/local/diablo-jdk1.5.0/bin/java -version; \ echo "***
 An XSLT processor (J2SE 1.4.x or newer) is required" \ "to bootstrap
 this build" 1>&2; \ exit 1; \
 fi /libexec/ld-elf.so.1: /usr/local/lib/compat/libpthread.so.2:
 Undefined symbol "__malloc_lock" *** An XSLT processor (J2SE 1.4.x or
 newer) is required to bootstrap this build gmake[4]: ***
 [check_j2se_version] Error 1 gmake[4]: Leaving directory
 `/usr/ports/java/jdk16/work/control/build/bsd-amd64/hotspot/outputdir'
 gmake[3]: *** [bsd_amd64_compiler2/debug] Error 2 gmake[3]: Leaving
 directory
 `/usr/ports/java/jdk16/work/control/build/bsd-amd64/hotspot/outputdir'
 gmake[2]: *** [generic_build2] Error 2 gmake[2]: Leaving directory
 `/usr/ports/java/jdk16/work/hotspot/make' gmake[1]: *** [product] Error
 2 gmake[1]: Leaving directory `/usr/ports/java/jdk16/work/hotspot/make'
 gmake: *** [hotspot-build] Error 2 *** Error code 2
 
 Stop in /usr/ports/java/jdk16.
 *** Error code 1
 
 Stop in /usr/ports/java/jdk16.
 
 I have the compat6x installed
 I think the problem is in '/usr/local/lib/compat/libpthread.so.2:
 Undefined symbol "__malloc_lock"'
 
 Can you hel me, I search since 2 week :/
 
 Thanks
 
 _______________________________________________
 email***@***.com mailing list
 http://lists.freebsd.org/mailman/listinfo/freebsd-java
 To unsubscribe, send any mail to "email***@***.com"

Author

Message

Charles Goehring

Posted: 2004-5-20 19:30:00

Top

java-programmer, Java applets and client-side ssl certificates? Applet Gurus,

Is anybody out there doing Java applets and client-side ssl certificates?

When I turn the requirement on in Apache, I get handshake failure errors
when the applet tries to load. Certificates are installed in the web
browser for the user's html browsing.

Some of our customers are on locked down machines that don't allow
"installation of software" but they jave jre 1.4.2 and Java Web Start.

Considering using Java Network Launch Protocol (JNLP) or some other kind
of applet based install but I think this would require a signed applet.
This, in turn, would require a certificate to be installed beforehand
(to validate the signed jar). Since our certs are all done in-house,
I'm in a chicken/egg situation. All certificates are issued by an
internal CA but are not easy to get for various reasons.

Is there an easy way to mass-install certificates (to keystores) in a
secure way without touching all the workstations?

The applet/client-side certificates present four problems as I see it:
1 handling the user's certificate securely
2 Maintainig the internal CA and root certs
3 Excessive prompting for multiple passwords to keystores
4 Keystore security (Bouncy Castle libs are 1MB)

Does anyone have any advice to give?

Thanks
Chuck

Index ‹ java-programmer

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- 1
 - java tablesI'm writing an API and i'd like some help testing it.
 
 The API is designed to allow developers to create feature rich tables both
 server and client side.
- 2
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- 3
 - ports/83434: www/jakarta-tomcat ports give the wrong ownershipOld Synopsis: tomcat ports give the wrong ownership to their installed executables
 New Synopsis: www/jakarta-tomcat ports give the wrong ownership to their installed executables
 
 State-Changed-From-To: feedback->open
 State-Changed-By: hq
 State-Changed-When: Tue Oct 18 15:44:20 GMT 2005
 State-Changed-Why:
 Timeout
 
 Responsible-Changed-From-To: freebsd-java->hq
 Responsible-Changed-By: hq
 Responsible-Changed-When: Tue Oct 18 15:44:20 GMT 2005
 Responsible-Changed-Why:
 I'll handle this.
 
 This is the last improvement to be applied to www/jakarta-tomcat55 before we
 merge back all recent improvements into other Tomcat ports.
 
 http://www.freebsd.org/cgi/query-pr.cgi?pr=83434
 _______________________________________________
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- 4
 - Detecting compiler version at runtimeThis is a multipart message in MIME format.
 Does anyone know if there is a way to determine which version of the
 compiler was used. That is, at runtime - using 1.4.x - finding
 out if the class/jar was compiled with 1.3.x?
 
 Thanks
 
 Does anyone know if there is a way to determine which version of the compiler was used. That is, at runtime - using 1.4.x - finding
 out if the class/jar was compiled with 1.3.x?
 
 Thanks
 
 
- 5
 - How to convert int/float etc into byte[]?For example
 
 int i = 2;
 char c = 'c';
 float f = (float)3.45;
 double d = 3.546;
 String s = "Hello";
 
 I want to write all these into a binary file.
 
 In OutputStream, PrintStream classes
 they have
 
 write(int byte); and
 write(byte[] buffer, int offset, int length);
 
 My question is how do I convert those i,c,f,d,s into
 byte[]?
 
 Thank Q in advance!
- 6
 - Kill a thread automaticallyHi,
 
 If I have a class that runs a thread and no reference points to it, the
 gc won't finalize the class because the thread is still running -> so
 stopping the thread in the finalize() method won't work. Afaik this is
 also true for daemon threads.
 
 Is it possible to stop a thread automatically when there are no
 references left? In my case it does not matter if the thread is
 gracefully interrupted or just killed and whiped out.
 
 greets,
 -adi
- 7
 - dynamic file download with *long* response time - How to show "Save As" early?I've got a Java servlet that delivers large database resultsets
 transformed to Excel with the HSSF library. In some cases it takes
 more than 15 minutes before transformation is done and content can be
 delivered to the browser.
 
 I want to show the "Save As" dialog as early as possible so the user
 knows he's not lost and forgotten.
 
 I already tried to send the response headers immediately after
 receiving the request including content disposition and filename. Even
 though the browser receives those headers it just won't trigger the
 "Save As" dialog. This applies to both MS IE and Mozilla.
 
 Any ideas appreciated.
- 8
 - JUnit RemoteTestRunner ErrorHi. I was running a test suite under JUnit version 3.7.0 through
 XDE/Eclipse version 2.0.1 and I got a null pointer error. When I
 stepped through the program, I saw that the error occurs right when I
 get a window telling me
 that "org.eclipse.jdt.runner.RemoteTestRunner" type cannot be found.
 Do I need this type? It does not seem to be in the junit.jar file.
 
 Thanks for any info,
 
 Ken
- 9
 - Spring Framework for Java/J2EE/.NET Application development...
 Hello all
 
 I'm very pleased to announce the launch of www.SpringHub.com : a
 one-stop information resource dedicated to the Spring Framework for
 Java/J2EE/.NET application development.
 
 SpringHub.com provides free, easy and fast access to hundreds of Spring
 Framework resources organized in several categories and sub-categories:
 
 - Spring Quick Start (Spring Framework Project, Spring Reference
 Documentation, Spring Terminology, Spring Tutorials, Sample Book
 Chapters)
 - Spring InfoSources (Spring Articles, Spring Presentations, Spring
 Blogs, Spring Wikis, Spring Interviews, Spring News)
 - Spring Products (Spring Related Projects, Spring Libraries/Plugins,
 Spring Tools, Spring Books, Miscellaneous)
 - Spring Services (Spring Consulting, Spring Trainings, Spring Courses,
 Spring Jobs)
 - Spring Usage (Sample Applications/Code, Real-World Usage)
 - Community Support (Spring Forums, Spring Mailing Lists, Spring User
 Groups, Spring FAQs)
 - Related Frameworks (Meta-Frameworks, IoC Frameworks, AOP Frameworks,
 Front-End, Business Logic, Back-End, RIA Frameworks, Testing
 Frameworks)
 - Related Resources (Sun Official Resources, Java IDEs, Open Source
 Stacks, Web Servers, Web Containers, Application Servers,View
 Technologies, Remoting and Web Services)
 
 With your feedback and URL submissions, SpringHub.com will evolve to
 better serve you and the fast growing Spring Framework community.
 
 Regards,
 
 Slim Baltagi
 J2EE Consultant
 Chicago, USA
 http://www.SpringHub.com
- 10
 - no applicationshi guys
 
 ive installed the jdk on my xp system
 it will run applets, but when i try to run
 an application i get the following
 message in the command prompt window
 
 'Exception in thread "main" java.lang.NoClassDefFoundError:'
 
 the same programs work fine on the collage system, so
 it shouldn't be the code
 
 please help
 
 pat
- 11
 - [OT] Any way to see if a website is up in an automated way?I am looking for a tool or technique that can automatically check to see if
 a specific website is up - say twice a day - and then send me an email if it
 isn't. I do not want to have to manually check myself.
 
 Does anyone know of a way to do this?
 
 I have no money to spend on this so if there is no free service that does
 it, I'd be interested in how I can program this, preferably in Java. I
 assume that my best bet would be Java application that I could schedule via
 Windows XP scheduler but I can code applets and servlets too if that makes
 more sense.
 
 --
 Rhino
- 12
 - poi hssf getCellStyle problemhey there,
 
 i have a big problem with those cellstyles. i want to add background
 color to some cells, but apparently i just can "change" cell styles
 from cells which already "have one".
 for better understanding of my problem, here's the code:
 
 for ( int i = 0; i <= rowcount; i++ ) {
 for (int j = 0; j <= colcount; j++) {
 HSSFRow row = s1.getRow((short)i);
 if (row != null) {
 HSSFCell cell = row.getCell((short)j);
 if (cell != null) {
 HSSFCellStyle style = cell.getCellStyle();
 style.setFont(font);
 style.setWrapText(true);
 style.setFillForegroundColor(colorIndex);
 
 if ( (j%4== 0) && (colorIndex ==
 HSSFColor.LIGHT_CORNFLOWER_BLUE.index) ) {
 colorIndex = HSSFColor.LEMON_CHIFFON.index;
 }
 else if ( (j%4== 0) && (colorIndex ==
 HSSFColor.LEMON_CHIFFON.index) ) {
 colorIndex =
 HSSFColor.LIGHT_CORNFLOWER_BLUE.index;
 }
 }
 }
 }
 }
 }
 
 this piece of code just works for cells, which already have attributes
 in their cell styles like background color and border. cells which
 just have a border and no color won't get the instructed color...
 
 does anybody know what to do? is the method cell.getCellStyle() not
 the best option in this case?
 
 best regards and thx in advance,
 manuela
- 13
 - Any Source Code or Web site demonstrate the effect of gridwidth and gridheigh of GridBaglayoutDear all,
 
 I want to make clear how the outlook of Gridbaglayout will
 change according to different value of gridwidth and gridheight of
 GridBagConstraints. Please suggest some source code for me so that I
 can modify the source code of the value of gridheight and gridwidth,
 thus I can find out the change of the outlook according to different
 value of gridheight and gridwidth. Or please suggest some website for
 me to investigate about the gridwidth and gridheight of
 GridBagConstraints.
 
 Thanks.
- 14
 - JTabbedPane selection changesHello,
 
 I couldn't find what would be the was to go to detect changes in a
 JTabbedPane's selection...?
 
 Can anyone give a hint please?
 
 Karsten
- 15
 - Accessing a method inside of an object that is stored in a vector...I have been trying to post to .help all day but nothing is going
 through. Will try it here and hope it does....
 
 I am trying to access a getData() method that simply returns a stored
 integer value from an object that is stored in a vector. I have tried
 to do this but cannot get the notation correct. I tried google groups
 and the only thing I got from there was to pull the object from the
 vector into a temperary object. That didnt work.
 
 So, here is the code I have so far of making the temp object and
 making sure it is actually pulling one out. I still connot figure out
 how to access the getData() method.
 
 Any hints are appreciated.
 
 import java.util.Vector;
 
 public class StackUser
 {
 
 public static void main(String argv[])
 {
 
 Vector vector = new Vector();
 
 for (int i = 0; i < 100; i++)
 vector.add(i, new StackNode());
 
 System.out.println(vector.get(0));
 
 Object tobj = vector.get(0);
 
 System.out.println(tobj);
 
 }
 }
 
 public class StackNode
 {
 
 private int value = 0;
 
 public StackNode()
 {
 value = (int)(Math.random());
 }
 
 public int getData()
 {
 return value;
 }
 
 }