Java command not working - path problem ?

Im not really new to Java, but rather new to Linux :=)
Ive got NetBeans setup and working great on Redhat 7.2 and I can run Java apps from within the IDE...but not from a command line. I get "bash: java: command not found"
This tells me something is amuk with my path, because obviously the bin folder is not on the path ???
Help :=)

also, ive got this in my .bashrc file
#JDK Home varible
JDK_HOME=/usr/java/j2sdk1.4.0_01

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Java command not working

Hi
I m learning java since few weeks.... I am facing problem in running java class using java command.I have a folder as
D:\deepali\Bday\Birth\web-inf\classes\BI
in this folder i have TryAPI.java file. Its getting compiled properly. but whenever i give command as
java TryAPI
it gives me the following error
D:\deepali\Bday\Birth\web-inf\classes\BI>java TryAPI
Exception in thread "main" java.lang.NoClassDefFoundError: TryAPI (wrong name: BI/TryAPI)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
My path is
D:\Oracle\Ora81\bin;C:\Program Files\Oracle\jre\1.1.7bin;C:\WINNT\system32;C:\WINNT;C:\WINNT\System32\Wbem;;D:\tibco\tibrv\BIN;C:\j2sdk1.4.2_05\lib;C:\j2sdk1.4.2_05\bin;;D:\tibco\BIN;C:\TIBCO\TIBRV\BIN;
Can anyone explain me why this is happening?
Thanks and Regards
Deepali

You see the error message that says "wrong name. . ."?
That means you used the wrong name for the class. You have it in a package, but you didn't use the package name. (You have to)
This is a minimal explanation of packages.
Assume that your programs are part of a package named myapp, which is specified by this first line in each source file:
package myapp;
Also assume that directory (C:\java\work\) is listed in the CLASSPATH list of directories.
Also assume that all your source files reside in this directory structure: C:\java\work\myapp\
Then a statement to compile your source file named aProgram.java is:
C:\java\work\>javac myapp\aProgram.java
And a statement to run the program is:
java myapp.aProgram
(This can be issued from any directory, as Java will search for the program, starting the search from the classpath directories.)
Explanation:
Compiling
A class is in a package if there is a package statement at the top of the class.
The source file needs to be in a subdirectory structure. The subdirectory structure must match the package statement. The top subdirectory must be in the classpath directory.
So, you generate a directory structure C:\java\work\myapp\ which is the [classpath directory + the package subdirectory structure], and place aProgram.java in it.
Then from the classpath directory (C:\java\work\) use the command: javac myapp\aProgram.java
Running
Compiling creates a file, aProgram.class in the myapp directory.
(The following is where people tend to get lost.)
The correct name now, as far as java is concerned, is the combination of package name and class name: myapp.aProgram (note I omit the .class) If you don't use this name, java will complain that it can't find the class.
To run a class that's NOT part of a package, you use the command: java SomeFile (assuming that SomeFile.class is in a directory that's listed in the classpath)
To run a class that IS part of a package, you use the command java myapp.aProgram (Note that this is analogous to the command for a class not in a package, you just use the fully qualified name)

Java does not work at all upon using the update manager to update to firefox 3.6.10 for Ubuntu 9.0.4

OS: Ubuntu 9.0.4
Browser: Firefox 3.6.10
upon updating to firefox 3.6.10, java does not work at all.
websites that use java do not work at all anymore, when they worked just fine before the updating thru update manager. e.g. hulu website cannot play any of the shows.
i can give the folder of bookmarked pages i tried.
how to do that on here, i've yet to see if possible.
i can even give saved text from the terminal concerning certain attempts.
when i updated thru update manager, it gave some weird java plugin that wasn't there before "The IcedTea Web Browser Plugin IcedTea6 Java Web Browser Plugin (execution of applets on webpages)".
i uninstalled this as instructed by an answer found in one of the pages i saved, cuz it was conflicting w/another java program the updater said i needed. right now, i don't remember for sure what it was. it perhaps was realplayer flash or Java itself. w/all the hours/days of searching i put in, it's difficult if not downright impossible for me to remember all the specifics of what i tried.
i've searched throughout many webpages (including many searches on mozilla, ubuntu, java, etc) for instruction in fixing the problem.
oh, and incidentally, on the Java site, when i try the verify test of Java, firefox pops up with that yellow bar right below the slew of tabbed website windows, giving the statement "additional plugins are required to display all the media on this page. (w/link to) install missing plugins ." which is what i do, go thru the requesting plugin installation. it comes up with, guess what, the IcedTea Java Plugin. i click on the 'next' in the "Plugin Finder Service" box that pops up, & all it gives me is "No plugins were installed. IcedTea ...Plugin failed. and the link 'find out more about plugins or manually find missing plugins'". the link takes me to some of the very things/plugins that wouldn't install in the first place. the Java test failure is a LOL funny, as what plugin it is saying is required (IcedTea) is a recommended alternate program to display the very test in the first place.
i followed the given instructions on those many searched pages, in every case (barring what i may have just plain missed), but to no avail.
i've even gone to the point of trying to reinstall the previous 3.5.13 firefox version, from mozilla site. even that wouldn't install.
i've tried installing Java for my sys direct from it's site. nada.
now it's time for me to post the problem & perhaps someone will come up with some kind of "dummy" way to fix it.
until then many sites a regularly use are totally useless to me on this fast puter.
the only way i can get to use such sites, are two choices: 1. use a dinosaur laptop, which is slower than molasses & cannot handle to any streaming stuff, or 2. use an available internet access puter at the library. but useage for ea person per day is limited to only one hour a day. and one can end up waiting for an hour or more ( in the busiest periods) to even get to use one.
so, is there anyone at all, who knows any for-sure working fix for this problem?
thanks muchly :^D
p.s. i can't pay anybody any money for such help, as is required in certain sites (e.g. Java website), cuz i don't have any.
i can pay in labor tho, if there is someway to find someone who can physically be at this puter w/me, taking me step-by-step
sorry for the 20-pg essay. i hope it was all clearly understood. if, not, well, clear communication is always what is needed, ask away.

Your above posted system details show outdated plugin(s) with known security and stability risks.
*Shockwave Flash 9.0 r999
Update the [[Managing the Flash plugin|Flash]] plugin to the latest version.
*http://www.adobe.com/software/flash/about/
In Firefox 3.6 and later versions you need the Next-Generation Java™ Plug-In present in Java 6 U10 and later (Linux: libnpjp2.so; Windows: npjp2.dll).
http://java.com/en/download/faq/firefox_newplugin.xml
See also http://java.sun.com/javase/6/webnotes/install/jre/manual-plugin-install-linux.html

Java Plugin not working with firefox 3.o.13 and linux.

this is my ln -s to the plugin at /usr/lib/mozilla/plugins
libjavaplugin_oji.so -> /usr/local/jdk1.6.0_16/jre/plugin/i386/ns7/libjavaplugin_oji.so
Any ideas why java is not working?
Here's the ln -s again:
#pwd
#/usr/lib/mozilla/plugins
# ls -l
lrwxrwxrwx 1 root root 63 Sep 28 20:41 libjavaplugin_oji.so -> /usr/local/jdk1.6.0_16/jre/plugin/i386/ns7/libjavaplugin_oji.so
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# java -version
java version "1.6.0_16"
Java(TM) SE Runtime Environment (build 1.6.0_16-b01)
Java HotSpot(TM) Client VM (build 14.2-b01, mixed mode, sharing)
Firefox 3.0.13:
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Gentoo Linux:
# uname -a
Linux tma 2.6.30-gentoo-r5 #10 SMP Sun Sep 20 21:52:19 PDT 2009 i686 Pentium III (Coppermine) GenuineIntel GNU/Linux
I installed java from a jdk*.sh file and set the class path in /etc/bash/bashrc (not that it matters.
The appletviewer does work.

solved: I knew you all knew I could figure this out.
#cp -R /usr/lib/mozilla/plugin/ /usr/lib/firefox-mozilla/
asuming this is true:
tma plugins # pwd
/usr/lib/mozilla/plugins
tma plugins # ls -l
total 4
lrwxrwxrwx 1 root root 63 Sep 28 20:41 libjavaplugin_oji.so -> /usr/local/jdk1.6.0_16/jre/plugin/i386/ns7/libjavaplugin_oji.so
tma plugins #

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I need some help with Java 7.
I am trying to open my photo lab software, however, it keeps giving me a message saying I need to download the Java Runtime Environment. I clicked on the link and it brought me to the Java site. I sucessfully download the software but it still doesn't work even though Java test show's it's working.
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Java apps not working right

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Java & Flash not working in safari

Hello Friends,
why java & flash is not working in safari?
I have checked Java preferences, tab called general tab, and the checkboxes, both checked. java version run on the termial & it confirmed java by displaying it's version. running perfect.
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Edited by: 951029 on Aug 6, 2012 4:01 AMJavatester site<a/>, so?
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>
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Java -version bash: java: command not found

Hi all.
I wanna install java on linux (OpenSUSE). When I checked java -version, it shown that :
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Can any solution about it, please!

Sukirmanster wrote:
I wanna install java on linux (OpenSUSE). When I checked java -version, it shown that :
java -version
bash: java: command not foundNot surprising if you have not installed java yet.
Can any solution about it, please!If you have installed java, read a unix/linux manual,
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Crontab reboot command not working
Greetings
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sudo nano /etc/crontab
Entered password
Than I entered using tab between each sequence:
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Entering
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I got:
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Hi,
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/usr/share/TuxGuitar-0.9.1-linux-gtk-x86/tuxguitar: line 27: java: command not found
this is the content of that file, line 27 is the last one
#!/bin/bash
##SCRIPT DIR
DIR_NAME=`dirname "$0"`
DIR_NAME=`cd "$DIR_NAME"; pwd`
cd "${DIR_NAME}"
##JAVA
if [ "${JAVA}" == "" ]; then
if [ "${JAVA_HOME}" != "" ]; then
JAVA=${JAVA_HOME}/bin/java
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fi
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LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/local/lib
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##LAUNCH
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the dependencies jre and swt are installed...
Last edited by SiD (2007-02-23 13:23:49)

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Java command not working - path problem ?

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