How to open a jar file

[Lo]

Hi,

I'm looking for a tool to open up files with .jar extension so that I can
get the original source code for all the classes. Can that be possibly done
(coz that's the only file left for me to read and modify the original source
code) ? Thanks in advance.

Lo

[Paul Clapham]

Yes, any tool that can read ZIP files can also read JAR files, because they
are in the same format.

Lo <harry@startechmm.com> wrote in message news:39eacc7c$1@news.devx.com...
>
> Hi,
>
> I'm looking for a tool to open up files with .jar extension so that I can
> get the original source code for all the classes. Can that be possibly
done
> (coz that's the only file left for me to read and modify the original
source
> code) ? Thanks in advance.
>
> Lo

[Raja]

you can open .jar archive using SUN JDK's jar command. But you can read only
images or something like that stuff otherwise it contains .class file which
is byte code. Have fun

[jayaramreddy]

"Lo" <harry@startechmm.com> wrote:
>
>Hi,
>
>I'm looking for a tool to open up files with .jar extension so that I can
>get the original source code for all the classes. Can that be possibly done
>(coz that's the only file left for me to read and modify the original source
>code) ? Thanks in advance.
>
>Lo

Hi!
If u are working on windows o/s.Then press shift key and then right click
mouse button,select open with and there chose win zip
and press ok.This shows you all the files in the jar.

[Mikael Petterson]

"Lo" <harry@startechmm.com> wrote:
>
>Hi,
>
>I'm looking for a tool to open up files with .jar extension so that I can
>get the original source code for all the classes. Can that be possibly done
>(coz that's the only file left for me to read and modify the original source
>code) ? Thanks in advance.
>
>Lo

Hi LO,

if you are working with the command line ( MS-dos window or Linux) use:

jar tvf <filename>.jar to find the content of the file without extracting..

If you for some reason want to extract the class files in the jar then
you can use the :

jar xvf <filename>.jar

This is easy to use. Note that the paths are created so you don not have
to
worry about that.

//Mikael