Solved

Unzipping .JAR

Posted on 1998-05-13
8
760 Views
Last Modified: 2013-12-29
I use Netscape 4.04 and want to update this browser to 4.05.  Netscape's ftp's site allows me to do this, but the download file is a .JAR    I have never unzipped a JAR file
and don't know what utility needs to be used.  My primary unzipping utility is Zip-It from Quarterdeck. JAR files aren't specified in the manual.  I have run on a Web search on this topic and am checking in here for another opinion.
0
Comment
Question by:endless
8 Comments
 
LVL 2

Accepted Solution

by:
the_whelk earned 100 total points
ID: 1712585
I think you mean ARJ files. Winzip will do this for you easy. Winzip is easily downloaded from the Internet. If you can't find the sight let me know and I will give you an address.
0
 
LVL 5

Expert Comment

by:stevemiller
ID: 1712586
Whelk,
winzip is also just a front end to the DOS ARJ, but he will have to locate the registered version of that on the net, too.

steve
0
 
LVL 5

Expert Comment

by:stevemiller
ID: 1712587
thats not difficult. Reject my answer if you want but you will find winzip a far more useful and versatile utility.
0
 
LVL 2

Expert Comment

by:the_whelk
ID: 1712588
Hi, Endless

.jar files R an old news, U cant unzip them, but U can unjar:)
Download here:

ftp://ftp.std.com/pub/jar/jar102.exe
Current release for US users only (primary site)

ftp://members.aol.com/arjsoftdir/files/jar102.exe
Current release for US users only (secondary site)

ftp://ftp.std.com/pub/jar/jar102x.exe
Current release for international users only (primary site)

ftp://members.aol.com/arjsoftdir/files/jar102x.exe
Current release for international users only (secondary site)

Regards, Happy1

0
Integrate social media with email signatures

Is your company active on social media? Do you also use email signatures? Including social media icons in your email signature is a great way to get fans for free. Let all your email users know you’re on social media quickly and easily, in a single click.

 
LVL 2

Expert Comment

by:happy1
ID: 1712589
some further information for you.

WinZip requires external programs while working with ARC, ARJ, and LHA files. In the tables below, information about these files and their locations is current as of June 1996.
You can download the external programs used by WinZip from CompuServe's IBMSYS forum, library 6 (the File Utilities library). The CompuServe filenames are:
   arc    ARC-E.COM (required to work with ARC files in WinZip)
   arc    ARC-E.DOC (not required but good to have)
   arj    ARJ250A.EXE (self-extracting archive)
   lha    LHA213.EXE (self-extracting archive)
   zip    PK204G.EXE (self-extracting archive)
You can obtain ARJ, LHA, and PKZIP from the following Internet sites (among others). ftp.coast.net is the main mirror site for the SimTel software repository. Most of the other sites are mirrors of this site. Please note the upper/lower case format of some directory names -- you may need to respect the case of directory names if you login to one of these sites.
You can gain access to an ftp site by using a URL of ftp://sitename (e.g., ftp://ftp.coast.net).

   Site names             Directory                      File name

   ftp.coast.net          SimTel/msdos/archiver          arce41a.zip
                                                         arj242b.exe
                                                         lha213.exe
                          SimTel/msdos/zip               pkz204g.exe

   oak.oakland.edu        pub/simtelnet/msdos/arcers     arce40g.zip
                                                         arj250a.exe
                                                         lha213.exe
                                                         pkz204g.exe

   nic.funet.fi           pub/msdos/Simtel/arcers        arce40g.zip
                                                         arj250a.exe
                                                         lha213.exe
                                                         pkz204g.exe
Many web sites will also have some or all of these programs.
Note: Like WinZip, PKZIP/PKUNZIP and ARJ are not free software. As with all Shareware, if you use these programs you should register them with the appropriate vendor. The ARC-E and LHA programs are free.
For instructions on using WinZip with these programs please see the section titled "Installing Optional External Programs" in the WinZip online help. Briefly, if the file is a self-extracting archive you have to run it to extract the files. Then, select "Program Locations" from WinZip's Options pull-down menu, and type in the full path if necessary. For example, if LHA.EXE is in C:\UTILITY, specify
    C:\UTILITY\LHA.EXE

0
 
LVL 2

Expert Comment

by:the_whelk
ID: 1712590
I am totally confused!

I wanted to save time downloading the update to Netscape 4.04
by using a JAR file from Netscape's ftp site.  Now stevemiller tells me that Netscape's JAVA upgrader doesn't work right. I'd like to know why this is the case. stevemiller suggests one of two download html files.  Now I need to check out the advantages of the professional version....

Thank you the_whelk for giving me this information regarding ARJ files.  My original question pertained to JAR files.  Are you telling me these are the same things?  Happy1's respponse seems to indicate that these might be two different file formats.

WinZip might require an external program to extract files in ARJ archives, but I suspect that users of Zip-It from Quarterdeck don't.  Still, I've never tested this assumption.

Thank you for the helpful information.  I've learned some useful things from everyone who posted to this thread!
0
 

Author Comment

by:endless
ID: 1712591
I believe that ARJ and JAR are the same just some confusion in the naming of the type of files. I use Winzip a lot and it is a very good utilty.

Thanks for the points.
0
 
LVL 2

Expert Comment

by:the_whelk
ID: 1712592
Endless,

I think I must explain my comment, because I'm confused too.
First little history, as I said JAR files are an old news.
I posted here links to JAR prg, which is a pure archiver from
Robert K. Jung (yes, he is the author of popular ARJ archiver)
or ARJ Software, Inc.
This archiver is not too popular as others, because of competition
on market, there not yet GUI for this prg, no international versions,
no self extracting features, only PC version, etc...
 Also ARJ and JAR prgs have similar commands and functions
but they cannot process one another's archives
(i.e. JAR is not archive compatible with ARJ).

Now I must say, that when I saw your ".. but the file is a .JAR. 
I have never unzipped a JAR file.." I was thinking your .JAR was a typo-
and there must be .J extension as for JAR files from  ARJ Software.

Now I'm not so sure and first because I'm not using Netscape.
I'm confused, because there on the market was another "JAR files" prg!
This prg is also not new (was introduced in Sun Microsystem's Java
JDK 1.1 in the first quarter of 1997). This JAR format (or Java
ARchive) are also an "archives", but more specific.

Yes, this prg will produce files with extension .JAR, but they
used mostly by Java programmers for packaging and distributing
Java applets. And yes, I saw already several times Java applets
which was distributed via JAR files. U can unJAR them with Sun’s
JAR utility or 3rd party prg, like JZipper, but U don't need to, because browsers, other prg (applet viewers) will handle them automatically.  

There is many great benefits for packaging applets in JAR format,
like performance improvements, enhanced portability, many others..
and JAR files will soon become the standard, preferred way to
distribute Java applets.

If U need more technical data  let me know.
And here's a reason for my confusion: applets are mostly a small
Java prgs, in many cases they are in JAR uncompressed, similar
to uncompressed ZIP file - classes.zip in JDK 1.0.
I cant understand - Netscape begin distribute own
upgrades thru this Sun’s JAR format?? Why??
Only for proving usefulness their own SmartUpdate feature??

BTW, if this is the case - U must have Java, JavaScript, and AutoInstall enabled. You can set this in the "Advanced" section of the Preferences dialog (under the Edit menu).
Or just use Steve's method, as he said he is also a Netscape user.

Sorry, for maybe additional confusion
Regards, Happy1

0

Featured Post

Promote certifications in your email signature

Has your company recently won an award or achieved a certification? They'll no doubt want to show it off. Email signature images used to promote certifications & awards can instantly establish credibility with a recipient and provide you with numerous benefits.

Join & Write a Comment

Update 11/3/2014 - Although the below article will get you to relocate the WINSXS folder, Microsoft has finally released a utility to reduce the size of the WINSXS folder. For some reason, it's not that straightforward. It only works on Windows 2008…
Sometimes drives fill up and we don't know why.  If you don't understand the best way to use the tools available, you may end up being stumped as to why your drive says it's not full when you have no space left!  Here's how you can find out...
As developers, we are not limited to the functions provided by the VBA language. In addition, we can call the functions that are part of the Windows operating system. These functions are part of the Windows API (Application Programming Interface). U…
This Micro Tutorial will give you a basic overview of Windows DVD Burner through its features and interface. This will be demonstrated using Windows 7 operating system.

760 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

Need Help in Real-Time?

Connect with top rated Experts

18 Experts available now in Live!

Get 1:1 Help Now