Re: batch file/jar file

From:

Lew <lew@lewscanon.com>

Newsgroups:

comp.lang.java.programmer

Date:

Fri, 15 Feb 2008 20:34:31 -0500

Message-ID:

<m7-dnQjMnJE1oCvanZ2dnUVZ_qGknZ2d@comcast.com>

Knute Johnson wrote:

sihle87@gmail.com wrote:

hi guys,

Is there an easier way of creating a batch file or jar archive file
for my programme so that it can execute without via j-Grasp(or e-
Clipse)?

I know how to use unix. is there may'be a unix way of doing it?

-Thanks

Jar files can be made executable on both Windows and Linux. The exact
method varies slightly by compiler/runtime version and what other files
you need for your program to work. But basically it is;

1) Compile your program
2) Create a manifest file with at least this line;
Main-Class: YourMainClass
3) If you need other jar files you need a line in the manifest file;
Classpath: Some.jar

One small detail - if you have other JAR files that your JAR file needs, the
manifest needs to specify the relative path *on the file system*. You don't
nest the JARs inside the main JAR, you deploy them as a group into the file
system.

It is best to put the required JARs in the same directory as the main one, or
in a subdirectory thereof. Relative paths that move up (i.e., via "../") are
not safe.

4) Jar up the .class files and the manifest file
5) With Fedora 8 you set the 'Open With' to Java, other Linux' I don't know

Simple enough.

--
Lew