Anyone know how to edit a .JAR file? - GoFuckYourself.com

Big Cheese · 09-22-2004, 11:56 PM

I tried using JBuilder but it wouldn't work. Anyone know how to do this?

The Truth Hurts · 09-23-2004, 12:00 AM

maybe he knows.

colpanic · 09-23-2004, 12:40 AM

If you are asking that question, whatever it is you are trying to do.... isn't going to work out the way you hoped.

Big Cheese · 09-23-2004, 12:51 AM

Quote:

Originally posted by colpanic
If you are asking that question, whatever it is you are trying to do.... isn't going to work out the way you hoped.

I just need to change one line in the code. Is that not possible?

molz · 09-23-2004, 01:19 AM

Quote:

Originally posted by Big Cheese
I just need to change one line in the code. Is that not possible?

A jar-file is zip-file with an added manifest file. Jar-files can be run by a Java Virtual Machine. The jar-file contains, besides the manifest, class-files, wich are compiled java-files.

You can't edit compiled java-files, so you need to get the source-files. If you haven't got those, forget it. You could decompile it, but you get some fucked up and non java-like code as far as i know.

Try opening the jar-file with winrar. If it contains java-files, you are lucky, if not, you lose. If you get the java-files and edit them, you need to compile the whole thing again using a compiler from java.sun.com.

What is it for anyway? Maybe it's easy to write again, if you don't have the original files.

Holy crap i wrote -files a lot in this post!

Hope this helps a little

Big Cheese · 09-23-2004, 09:34 AM

Quote:

Originally posted by molz
A jar-file is zip-file with an added manifest file. Jar-files can be run by a Java Virtual Machine. The jar-file contains, besides the manifest, class-files, wich are compiled java-files.

You can't edit compiled java-files, so you need to get the source-files. If you haven't got those, forget it. You could decompile it, but you get some fucked up and non java-like code as far as i know.

Try opening the jar-file with winrar. If it contains java-files, you are lucky, if not, you lose. If you get the java-files and edit them, you need to compile the whole thing again using a compiler from java.sun.com.

What is it for anyway? Maybe it's easy to write again, if you don't have the original files.

Holy crap i wrote -files a lot in this post!

Hope this helps a little

That helped a lot. Thanks

09-22-2004, 11:56 PM	#1
Big Cheese Confirmed User Join Date: Jun 2004 Posts: 473	Anyone know how to edit a .JAR file? I tried using JBuilder but it wouldn't work. Anyone know how to do this?

09-23-2004, 12:40 AM	#3
colpanic Confirmed User Join Date: May 2004 Location: San Diego, CA Posts: 1,007	If you are asking that question, whatever it is you are trying to do.... isn't going to work out the way you hoped. __________________ I like ducks.

09-23-2004, 12:00 AM	#2
The Truth Hurts Zph7YXfjMhg Industry Role: Join Date: Nov 2002 Location: In Your Skull Posts: 15,305	maybe he knows.