Recompiling using JAVAC command

Question

this is the folderI am battling to convert classes2-dex2jar.jar.src.java.

So I deleted ONE DRIVE which was recommended. JDK-8u321 and JRE-8u321 are properly installed.

But whenever I say : javac classes2-dex2jar.jar.src.java it's saying javac: not a file. I also tried javac classes2-dex2jar.jar.src.java\* still it's javac not a file.

this file folder contains many java sourcefiles

this is the command's response

yes i have that file. This file contains many java source files — JAKOB FUGGER, Feb 18 '22 at 08:43
And that file is in your JDK `bin` directory? Can you show the result of running `dir`? — tgdavies, Feb 18 '22 at 08:46
You can't use javac to compile many java sources in a single jar. You will need to unpack it. — tgdavies, Feb 18 '22 at 08:47
You've given the file a `.java` suffix, but if it's a jar file, you can use the `jar` command: https://docs.oracle.com/javase/8/docs/technotes/tools/windows/jar.html — tgdavies, Feb 18 '22 at 08:51
And now you say that `classes2-dex2jar.jar.src.java` is a file folder? — tgdavies, Feb 18 '22 at 08:53
its in a folder format so when i tried changing the file name extension the format is not changing to a JAR format — JAKOB FUGGER, Feb 18 '22 at 08:53
What do you mean by "it's in a folder format"? Is it a file or is it a folder? It can't be both. — Jon Skeet, Feb 18 '22 at 09:02
Right - so don't pass a folder to javac, which expects to be given names of java files. (As Joop says, this may well be easier in an IDE.) — Jon Skeet, Feb 18 '22 at 09:12
Please jon Skeet may you please proovide me with instructions on how to do this i have already downloaded INTELLIJ IDEA an IDE i will use — JAKOB FUGGER, Feb 18 '22 at 09:33
Please help me, how do i recompile it and make it functional using a recommended IDE like INTELLIJ IDEA — JAKOB FUGGER, Feb 18 '22 at 09:35
I'm afraid that sort of "interactive debugging" isn't what Stack Overflow is for. We're not going to walk you through getting started with an IDE and reverse engineered code to compile, step by step — Jon Skeet, Feb 18 '22 at 10:36

score 0 · Answer 1 · answered Feb 18 '22 at 08:54

0

I am unsure about the real situation.

Unzip classes2-dex2jar.jar.
It contains a sub-directory src/java/ with sources typically in a directory tree.
For every package there is a directory: package x.y.z giving x/y/z/.
You would need to call javac inside src/java listing all *.java with src/java on the class path (-cp .).
(It might be easier to do this in an IDE.)

answered Feb 18 '22 at 08:54

Joop Eggen

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Mr Joop Eggen may you please proovide me with instructions on how to do this i have already downloaded INTELLIJ IDEA an IDE i will use – JAKOB FUGGER Feb 18 '22 at 09:31
1

I'd suggest that you create a project from scratch in IDEA, write a few classes of your own, and get comfortable with compiling them. Use a package structure to get used to that. Then you'll see how to copy the source files you already have into a suitable project structure to compile them. – tgdavies Feb 18 '22 at 10:45
@tgdavies said it all. The Idea community edition suffices. New project with existing sources might help. – Joop Eggen Feb 18 '22 at 12:19
tgdavies i used yo link then i used jar c. so what i did is i said jar c classes2-dex2jar.jar.src.java and it worked . but its showing it on cmd only. i cant find the output classes2-dex2jar.jar.src.jar. so i cant find the output jarfile its only appearing on cmd – JAKOB FUGGER Feb 18 '22 at 12:38
on cmd i used jar c classes2-dex2jar.jar.src.java but the jar file only shows on cmd but the output is not available on the system – JAKOB FUGGER Feb 18 '22 at 13:06
`jar c` creates an archive. Please read the link I gave above (https://docs.oracle.com/javase/8/docs/technotes/tools/windows/jar.html) on how to use the `jar` command. – tgdavies Feb 19 '22 at 02:52
@JAKOBFUGGER I am afraid you need some tutorials; comments here cannot provide enough qualitative and complete info. But let that not deter you. Good luck. – Joop Eggen Feb 19 '22 at 03:01

Recompiling using JAVAC command

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