how to correct "Java Exception Occurred" in java desktop application

[raj.mscking@gmail.com]

Hi
i try to build an simple desktop application using jdk 1.7 by Netbeans7.01 IDE

if i run the project it run well in Netbeans and i can create jar by "clean & build" option,
the jar self also running in side it's own folder.
But!
my problem is, if is shift jar in another location it not working & show an exception in dialog box
like "Java Exception Occurred"
title as "Java Virtual Machine Launcher "

Any one can help me how to correct the exception,
i m waiting for your help friends..,
Thank you..,

[wsaryada]

You need to supply us with some more details on the exception message rather then just "Java Exception Occured".

[Tolls]

Does the dist folder containg the jar file (the one generated by Netbeans) contain anything else?
For example, other jars that yours uses.

[raj.mscking@gmail.com]

sorry for late replay sir, now only the electric power is back.,

jest i create a new Desktop application and add one label on it, that's all,

this is the package file in Netbeans




and

This is the out put



what i have to do now please..,

[Tolls]

Run the jar file from the command line for starters, just to ensure it works there.
java - jar <your jar file>
If there are exceptions you'll at least see them.

[raj.mscking@gmail.com]

but if i create an application by choosing with netbeans "Newproject > java > javaApplication in swing".
it is working well, can create jar, i can move & run at any place in my pc,

the problem is even i unable to netbeans "Newproject > java > javaDesktopApplication"
it is also working well,
can create jar,
i can move .
But!
i con't run at any place in my pc sir,

[raj.mscking@gmail.com]

sir as you said i try to run the jar file from the command line for starters, just to ensure it works there.
java - jar <my jar file>

but it says

[Norm]

What happens when you do as suggested by Tolls?
Open a command prompt window, change to the directory (using the cd command) with the jar file and enter:
java -jar <JARFILENAME>.jar

To copy the contents of the command prompt window:
Click on Icon in upper left corner
Select Edit
Select 'Select All' - The selection will show
Click in upper left again
Select Edit and click 'Copy'

Paste here.

The error message in the image says there is a missing class. Is that class file in the jar file? Use a zip file utility to view the jar file contents.

[raj.mscking@gmail.com]

Ok Mr.Norm, sorry for my mistake,
i will fallow you hereafter..,

[raj.mscking@gmail.com]

sir!
when i extract by using zip
the MANIFEST.MF file contains
"
Manifest-Version: 1.0
Ant-Version: Apache Ant 1.8.2
Created-By: 1.7.0_01-b08 (Oracle Corporation)
Class-Path: lib/appframework-1.0.3.jar lib/swing-worker-1.1.jar
X-COMMENT: Main-Class will be added automatically by build
Main-Class: billtest.BillTestApp
"

[raj.mscking@gmail.com]

what i have to do with this sir..,

[Norm]

Where is the missing class? You need to put its definition on the classpath.

[raj.mscking@gmail.com]

can you please guide me sir,
how to do that?..,

[Tolls]

sir!
when i extract by using zip
the MANIFEST.MF file contains
"
Manifest-Version: 1.0
Ant-Version: Apache Ant 1.8.2
Created-By: 1.7.0_01-b08 (Oracle Corporation)
Class-Path: lib/appframework-1.0.3.jar lib/swing-worker-1.1.jar
X-COMMENT: Main-Class will be added automatically by build
Main-Class: billtest.BillTestApp
"

See my first post.
Your jar file was created in a directory called 'dist'.
I asked if there was anything else in that folder, because everything in that folder is needed for your app to run.
I would bet that there's a 'lib' folder in there, containign those two jar files.

[Norm]

Look in all the jar files you have for the missing class file. When you find the jar file with the missing class file, add it to the classpath.

I don't know how the java program uses the Class-Path: entry in the manifest. I've only used that entry with jars files in the same folder. Your Class-Path: entry has a path. Remove the path and put the jar files in the same folder.

[raj.mscking@gmail.com]

thank you sir!
their are two jar files as being in that project folder as you said..,

jest i try to in netbeans, highlight the project > right click > select project property > library > "it contains the swing application framework zip file in it"

is their any other way to i add this two jar files sir.,

[Norm]

Sorry, I do not know how to use your IDE.

[raj.mscking@gmail.com]

OK sir!
i am very happy with your guidance,
today i can understand the exception reason by you.,
i will try to search some internet resources..,
Thank you sir..,
Have a happy day..,

[Tolls]

The idea behind the Netbeans dist folder is that that is the folder you distribute for your app to run.
Hence the name...'dist'.
Netbeans sticks dependent jars in a lib folder in order to not confuse which jar file is the executable one.
It's a lot neater.

[raj.mscking@gmail.com]

Thank you Mr.Tolls, in this forum i learning lot and lot,
i am very happy to be a member within it with all your's guidance,
Thank you sir..,