Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win


Decompress Java

Posted on 2011-02-21
Medium Priority
Last Modified: 2013-11-13

How to uncompress the below compressed formats in JAVA ? The utility would be running in a UNIX environment.


I am aware that java.util.zip would help but not for all the above formats.
Question by:Rajan881
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
LVL 47

Accepted Solution

for_yan earned 800 total points
ID: 34946287
This is about gzip (which is gnuzip, as I understand):
LVL 47

Assisted Solution

for_yan earned 800 total points
ID: 34946397

There seems to be a lha decompressor beta on source forge


It looks like ther is no much on other formats, I guess there is something also about .rar - you didn't mention it in your list

Maybe you'd be better off trying to use the system tools using Runtime.getRuntime() - I think
even in UNix envirronemnt  you can find tools without source code and not in Java
LVL 86

Assisted Solution

CEHJ earned 400 total points
ID: 34946645
There's no 'one size fits all' app that does this in Java. Not even in Unix probably, since it's against the grain of the Unix 'philosophy'. You'll need to install the app that performs the correct functionality for each archive and call it from Java
Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

LVL 92

Expert Comment

ID: 34947181
LVL 92

Assisted Solution

objects earned 800 total points
ID: 34947199
For any formats that you cannot locate a java library for you can use Runtime.exec() to call a command line utility to perform the decompression. Make sure you consume any generated from the process to avoid it locking up

Author Comment

ID: 34955930
Okay ..Thanks for all your comments on this. Now my query is

I am creating a java program and it uses the below utility to uncompress the file types (.arc,.arj,.cab,.lha,.zip,.compress,.gnuzip)


Does all the above utility is compatible with Unix also ? If not what are the substitute for these utility in Unix ?

LVL 92

Assisted Solution

objects earned 800 total points
ID: 34955982
they can be read on any platform assuming they have the right utilitys installed

Featured Post

Tech or Treat! - Giveaway

Submit an article about your scariest tech experience—and the solution—and you’ll be automatically entered to win one of 4 fantastic tech gadgets.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Although it can be difficult to imagine, someday your child will have a career of his or her own. He or she will likely start a family, buy a home and start having their own children. So, while being a kid is still extremely important, it’s also …
Today, the web development industry is booming, and many people consider it to be their vocation. The question you may be asking yourself is – how do I become a web developer?
This video teaches viewers about errors in exception handling.
How to fix incompatible JVM issue while installing Eclipse While installing Eclipse in windows, got one error like above and unable to proceed with the installation. This video describes how to successfully install Eclipse. How to solve incompa…
Suggested Courses

610 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question