This text contains some information about the contents and production of the jarred file "JavaCodeFiles.jar".

*** important *** This text is also used as a resource for demonstrating security-related features of the Java Runtime System.
*** important *** There, and for the sake of coherence with the notation in the accompanying book,
*** important *** the jar-file should have been uncompressed into the >>> home-directory of the user <<<<.)
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How has been the single file 'JavaCodeFiles.jar' transformed into the present directory structure of files and folders?
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The file 'JavaCodeFiles.jar' has been downloaded from the Internet or has been copied from some other data-storage device
into the home-directory of the user. From a terminal-window the file should be listable (ls):

        [localhost:~] marycosway% ls
        ... JavaCodeFiles.jar ...

Next the archive-file 'JavaCodeFiles.jar' has been decompressed with the jar-tool,
that came with the intallation of a Java Development Kit (JDK).
The command to be entered into the terminal-window can be seen below:

        [localhost:~] marycosway% jar -xvf JavaCodeFiles.jar

This decompressed the files contained in the archive, into a complete directory structure of files and folders.
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What is in this archive?
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The directory-structure of this jar-file and its decompressed state is viewable by using an option of the jar-tool:

        [localhost:~] marycosway% jar -tvf JavaCodeFiles.jar

shows information about the compressed contents
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How was this archive produced?
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The beginning was a directory structure of files and folders witin the home-directory of the author,
being visible as a directory named 'JavaCodeFiles'.
Inside a terminal-window, with its current directory set to the author's home-directory,
the follwing command transformed the directory structure of files and folders into a single jar-file of name 'JavaCodeFiles.jar':

        [localhost:~] marycosway% jar -cvf JavaCodeFiles.jar JavaCodeFiles

This produced the file that contains the code of all the prototypes presented in the textbook.

The data contained in this archive has been copyrighted representing a part of the associated book "Charting Java" (ISBN 3-00-009429-6).