creating a java executable from a package with jar and manifest

[Mohammad Ashari Rahman]

Hello.

I have tried for two hours searching many forums, but could not manage to make my package executable. I have done evrything in notepad, terminal and linux.

My java package path /user/name/documents/mywork/filesystem -> filesystem is the package
in filesystem i got six classes with main class as executefilesystem.java and in /mywork folder i got some textfiles for working in the main class such as read write etc

now how should I run and from which folder?

I tried running from being in filesystem folder by typing in terminal jar cvf filesystem.jar *
it makes filesystem.jar and manifest file which is empty
I added in manifest file
MAIN-CLASS: executefilesystem //->with a newline
and after I failed running the jar as executable modifed the manifest by addind filesystem.executefilesystem AND also filesystem/executefilesystem

Everytme i tried running java jar filesystem.filesystem.jar or java -jar filesystem.jar
giving me either could not load main class OR unable to access jar file filesystem.jar

This is my last [art before I run my simple access control program but I cant seem to make it executable!!!

what am I doing wrong?

[Stephan van Hulst]

What does your manifest file look like, and how do you add it?

[Mohammad Ashari Rahman]

Stephan van Hulst wrote:What does your manifest file look like, and how do you add it?

Manifest-Version: 1.0
Created-By: 1.8.0_45-b14 (Oracle Corporation)
Main-Class: filesystem.ExecuteFileSystem

----

After the filesystem.ExecuteFileSystem I enter once to give it a newline and save the file

[Stephan van Hulst]

So you save it, but you don't add it to the jar?

It's a good idea to structure your projects. Having a package folder outside of a project folder is generally a bad idea. Lets say your project is called FileSystem. This is how you could structure it:

• FileSystem/


• bin/




• dist/




• src/
• filesystem/
• ExecuteFileSystem.java


• META-INF/
• MANIFEST.MF

When you have the command prompt open in the project folder (FileSystem/), you can run the following commands:

javac -sourcepath src -d bin src/filesystem/ExecuteFileSystem.java
jar -cvfm dist/FileSystem.jar src/META-INF/MANIFEST.MF -C bin filesystem/
java -jar dist/FileSystem.jar

The first command will compile your source code in the src/ folder and generate classes in the bin/ folder.
The second command will create a jar file in the dist/ folder and include the manifest file from the src/ folder and the filesystem package from the bin/ folder.
The final command will run the jar file from the dist/ folder.

[Mohammad Ashari Rahman]

I will try this way...thanks:)