Running a java program over network

Hi,
How a java program on a machine can be run without having JRE on the same machine, rather interpreting bytecode over network having JRE on another machine?

Rahul.Kumar wrote:
well, so my java program is running on x. Initialy X had JRE and on invoking java program from command prompt, it had looked for JRE at path, set in environmental settings. Now I moved JRE to another machine Y and connected these two machines (X and Y). You have two machines X and Y.
"Connected" or not has nothing to do with this discussion.
In X path is set to the JRE on Y. The path on X has absolutely nothing to do with anything on Y.
Now execute java program on X, theoretically it should work or what is wrong with this?This makes no sense. Presuming you meant Y in the above then the following must be true.
1. You must have a JRE on Y.
2. You must have a java application on Y (or one accessible via the file system on Y.)
3. You must be on Y and start the JRE passing the java application that is on Y to it.
Notice in the above there is no mention of X. There can be no mention of X.

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Running a Java program over and over.........

I'm new to java development, so forgive me if this is the wrong forum, or just a stupid question. What I have is a java program that reads messages from an IBM MQseries queue using the MQseries AMI interface, makes a connection to an oracle database, and inserts those messages into a table in the database. What I need, however, is for the program to run over and over, checking the queue for messages, and sending them to the database. How do I get this java program to constantly run. Also, when it runs the first time, I need to make a connection to the oracle database, grab some information from a table, and stick it into a java array. I only need this done once. Is there an init() method or something I can put this code in so it will only be done once?

Information that needs to only be run once can be done two ways.
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2) Inside a static block. Runs once, and only once, regardless of how many instances are created
Here's the example of both.
public class Foo
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Can anyone help me,
I am getting the following error while running a Java program, Below is the exception thrown, please help.
java.nio.BufferOverflowException
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Ok, let's see. Write the following class:
public class Grunt {
public static void main(String[] args) {
System.out.println("Hello Mars");
}Save it as "C:\Grunt.java", compile by typing:
javac c:\Grunt.javaRun by typing:
java -classpath "C:\" GruntDoes it say "Hello Mars"? If yes, go back to your program and compare for differences (maybe you used the "package" statement?).
Regards

Running a java program a set number of times

This is a general question. Is it possible to make a java program run only 5 times for the sake of arguement.
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ok I see so it's like one those programs that you download for free on the internet and they give you a set amount times to use it before you have to pay for it. but in this case when the number of times you use it equals 5 (or when the user clicks ok) a different java app will open automatically.
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Running a java program from an icon

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I am unable to run a java program from a batch file that I created.
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This has nothing to do with java programming. Have a look at the windows help for the call command.
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The command in you batch file should be:
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Hello
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This is really a Linux question, not Java.
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How do I run a java program that's located in a directory other than the current directory?
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You need to specify just the name of the class you want to run. So java -classpath /dir1/subdir1 Test

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Hi Experts,
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Hi,
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Siddharth

Not able to run a java program on Sun Solaris

Hi All,
I am getting following error while running a java program. Can you help.
Thanks,
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Error:
Exception in thread "main" java.lang.NoClassDefFound

Hi Sergi,
Thanks for the info. I couldn't able to login because of my internet connection.
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How to set path to run a Java program?

my pc os is win2000 service pack 3.
cpu is celoron 667mhz
256 pc133 sdram
i have done the setting b4 run a java program but no any effect.
setting as below:
set path=c:\j2sdk1.4.1_01\bin
set classpath=c:\j2sdk1.4.1_01\lib
my java file is store in C:\Java, file name is HelloWorld.java, so when i type:
C:\>
C:\>Java\javac HelloWorld.java
(the screen show me : java\javac not internal or external........")
and i try again as follow:
C:>
C:>\Java>javac HelloWorld.java
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i cant do anymore, who can help me?

you need to put the CLASSPATH to dir: c:\j2sdk1.4.1_01
and also to the directory you are working
For example, you are working in "C:\Myclasses". You need to put:
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Try it and luck!

Is it possible to run a java program without using the command prompt?

Hi,
I was wondering whether it is possible to run a Java program (not an applet) without using a command line in the command prompt?
Basically I want to run a program that will be continually running in the background and hence I don't want to have a command prompt screen loaded up as well - I just want the program to be running in the task bar.
I know how to run the program in the task bar - but I still need to launch the program from the command prompt - is there anyway I can get a program running without having to start it from the command prompt?
Cheers

Or create a desktop shortcut (in Windows) or an application launcher ( in Linux GUI).

URGENT: How to run a Java program from a different directory?

Hi.
How do I run a Java program from a directory that the file is not located in? So lets say im in c:\Java. But the file is in c:\Java\abc\efg\.
What would be the command to run the Java file from c:\Java.
I can't remember it and I need it asap.
Cheers.

If the class you are trying to run is MyApp.class, try
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Edited by: pbrockway2 on Apr 1, 2008 6:42 PM
The command arguments read as "Run the MyApp class using as a classpath abc\efg relative to here (c:\Java)".

How to run a java program without Java Compiler

I have a small project and I want share it with my friends but my friend'pc have not
Java compiler.
for example, I writen a application like YM, then 2cp can sent,receive messege. My cumputer run as Server, and my frien PC run as client.
How can my friend run it? or how to create an icon in dektop tu run a java program..??..
(sorry about my English but U still understand what i mean (:-:)) )

To run a program you don't need a Java compiler. Just the Java Runtime Engine. That can be downloaded from the Sun website and comes with an installer.
You could then turn your application into an executable jar file and start it somehow like jar myYM.
There is also software that packs a Java program into an executable file. I've never used that but one that comes to my mind is JexePack. It's for free if you can live with a copyright message popping up every time you start the program.
http://www.duckware.com/jexepack/index.html

How to run a java program in command prompt

hi i want to run a java program from in command prompt from another directory
i want to run a file named First in C:\Program Files\Java\jdk1.6.0_07\bin
so when i give the command
java "C:\Program Files\Java\jdk1.6.0_07\bin\First"
it doesnt works it shows
C:\>java "C:\Program Files\Java\jdk1.6.0_07\bin\First"
Exception in thread "main" java.lang.NoClassDefFoundError: C:\Program Files\Java
\jdk1/6/0_07\bin\First
Caused by: java.lang.ClassNotFoundException: C:\Program Files\Java\jdk1.6.0_07\b
in\First
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)
Could not find the main class: C:\Program Files\Java\jdk1.6.0_07\bin\First. Pro
gram will exit.

but it prints
C:\>java -cp "C:\Program Files\Java\jdk1.6.0_07\bin\" First
Usage: java [-options] class [args...]
(to execute a class)
or java [-options] -jar jarfile [args...]
(to execute a jar file)
where options include:
-client to select the "client" VM
-server to select the "server" VM
-hotspot is a synonym for the "client" VM [deprecated]
The default VM is client.
-cp <class search path of directories and zip/jar files>
-classpath <class search path of directories and zip/jar files>
A ; separated list of directories, JAR archives,
and ZIP archives to search for class files.
-D<name>=<value>
set a system property
-verbose[:class|gc|jni]
enable verbose output
-version print product version and exit
-version:<value>
require the specified version to run
-showversion print product version and continue
-jre-restrict-search | -jre-no-restrict-search
include/exclude user private JREs in the version search
-? -help print this help message
-X print help on non-standard options
-ea[:<packagename>...|:<classname>]
-enableassertions[:<packagename>...|:<classname>]
enable assertions
-da[:<packagename>...|:<classname>]
-disableassertions[:<packagename>...|:<classname>]
disable assertions
-esa | -enablesystemassertions
enable system assertions
-dsa | -disablesystemassertions
disable system assertions
-agentlib:<libname>[=<options>]
load native agent library <libname>, e.g. -agentlib:hprof
see also, -agentlib:jdwp=help and -agentlib:hprof=help
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load native agent library by full pathname
-javaagent:<jarpath>[=<options>]
load Java programming language agent, see java.lang.instrument
-splash:<imagepath>
show splash screen with specified image
C:\>

Running a java program over network

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