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Topic: Jar (file format)


  
 Jar (file format) - Wikipedia, the free encyclopedia
Jar files which are intended to be executed as standalone programs will have one of their classes specified as the "main" class.
In computing, a Jar file (short for Java archive) is a ZIP file used to distribute a set of Java classes.
JAR is also the name of a software tool which creates JAR files of a different kind.
http://www.wikipedia.org/wiki/Jar-file   (256 words)

  
 ZIP (file format) - Wikipedia, the free encyclopedia
Typically, in any modern file manager, a ZIP file may be treated as a directory or folder, so that files are copied into and out of it in the same manner as any other folder; the compression is handled in a way that is largely transparent to the end user.
Some software uses the ZIP file format as a wrapper for a large number of small items.
Compressing files separately allows for individual files to be retrieved without reading through other data; in theory, it may allow better compression by using different algorithms for different files.
http://en.wikipedia.org/wiki/ZIP_file_format   (1125 words)

  
 [No title]
JAR file is a file format based on the popular ZIP file format and is used for aggregating many files into one.
All the jar file paths are relative to the code base of the root jar file.
To validate a file, a digest value in the signature file is compared against a digest calculated against the corresponding entry in the manifest file.
http://java.sun.com/j2se/1.3/docs/guide/jar/jar.html   (3781 words)

  
 [No title]
The dump file should be treated as a text file.
However to support future JAR SFX-es you must search the first 128 kilobytes of the file for this structure (optional check for executable 'MZ' may also be done).
The remaining part of this document contains a description of the JAR archive header information that is dumped to a text file using the "lt" command.
http://datacompression.info/ArchiveFormats/jar.txt   (481 words)

  
 The ejb-jar File (Enterprise JavaBeans)
The JAR file format is a platform-independent format for compressing, packaging, and delivering several files together.
The goal in using the JAR file format in EJB is to package all the classes and interfaces associated with one or more beans, including the deployment descriptor, into one file.
As a packaging mechanism, however, the JAR file format is a very convenient way to "shrink-wrap" components and other software for delivery to third parties.
http://www.unix.org.ua/orelly/java-ent/ebeans/ch10_07.htm   (542 words)

  
 Creating a JAR File
Uncompressed JAR files can generally be loaded more quickly than compressed files because the need to decompress the files during loading is eliminated.
As an example, suppose you wanted put audio files and gif images used by the TicTacToe demo into a JAR file, and that you wanted all the files to be on the top level, with no directory hierarchy.
Produces verbose output on stderr (in version 1.1) or stdout (in version 1.2) while the JAR file is being built.
http://www.site.uottawa.ca/~kavanagh/LAKE/SunJavaTutorial/jar/basics/build.html   (688 words)

  
 JAR file - a Whatis.com definition - see also: Java archive file
file format and is somewhat comparable to the Unix tar file.
A JAR (Java ARchive) file is a file that contains the class, image, and sound files for a Java application or applet gathered into a single file and possibly compressed.
The jar utility lets the programmer create, list, or extract the individual files from a JAR file.
http://searchoracle.techtarget.com/sDefinition/0,,sid41_gci212414,00.html   (287 words)

  
 File Extension Details for .JAR
The JAR file format is based on the standard ZIP file format with an optional manifest file.
JAR comes in a 16 bit DOS version and a 32 bit Windows version.
Data collected by FILExt on registered file extensions from user systems is also in the display.
http://filext.com/detaillist.php?extdetail=JAR   (647 words)

  
 How to Manage Jar Files with zsCompare.
The file format is the same format that is used for Zip Files.
The Jar file format is an archive file format which allows you to store multiple files and folders within a single file in a compressed format.
To compare source files to the files in a Jar, navigate to the source directory using the left folder tree, and navigate to the Jar file using the right folder tree.
http://www.zizasoft.com/products/zsCompare/jars.shtml   (535 words)

  
 Data File Metaformats
It is especially appropriate for formats that have a complex nested or recursive structure of the sort that the RFC 822 metaformat does not handle well.
This format is to Unix what CSV (comma-separated value) format is under Microsoft Windows and elsewhere outside the Unix world.
Compressed XML combines space economy with some of the advantages of a textual format — notably, it avoids the problem that binary formats must often allocate space for information that may not be used in particular cases (e.g., for unusual options or large ranges).
http://www.faqs.org/docs/artu/ch05s02.html   (3337 words)

  
 Opening .jar Files
The jar file format is common for distributing programs and libraries that are written in Java.
Even though jar files are in the same format as zip files, they have a different extension for a reason.
The jar format is identical to the zip file format.
http://ostermiller.org/opening_jar_files.html   (350 words)

  
 Exploring the Java Archive (JAR) Format
JAR files are ubiquitous to Java users and programmers.
When a JAR file is indexed, directory information is stored in a file named INDEX.LIST.
This file is stored in the META-INF directory of the root JAR file.
http://www.informit.com/articles/article.asp?p=170393&seqNum=7   (399 words)

  
 The Java Archive (JAR) File Format
The JAR file format is an important part of the Java platform's extension mechanism.
Sealing a package within a JAR file means that all classes defined in that package must be found in the same JAR file.
Note: The JAR file format was introduced in version 1.1 of the Java Development Kit, and version 1.2 includes several enhancements to JAR file functionality.
http://developer.java.sun.com/developer/Books/javaprogramming/JAR   (709 words)

  
 JAR File Format
JAR files are used in a number of the tutorial's applet examples, including: The AroundTheWorld example in Writing Global Programs
JAR (Java ARchive) is a platform-independent file format that allows you to bundle a Java applet and its requisite components (
Finally, the applet author can digitally sign individual entries in a JAR file to authenticate their origin.
http://journals.ecs.soton.ac.uk/java/tutorial/post1.0/whatsnew/jar.html   (318 words)

  
 Jar Files How To
Jar Files How To Executable Jar Files How To The Java Archive (JAR) file format is THE primary manner in which Java programs are professionally delivered.
In this example, we are placing all.class files in the current directory into the NameOfJarFile.jar JAR file.
I will share a few brief steps on how to make these files, however the primary resource for JAR files is the trail on JAR FILES in the Java Tutorial.
http://www.isy.vcu.edu/~jbabb/INFO350/jar_file_how_to.htm   (294 words)

  
 Sun takes the covers off Mustang: Builder AU: Program: At Work
There are a number of problems with the current JAR file format that Sun accepts, including problems with sharing and versioning JAR files.
"JAR file hell" may be fixed in Dolphin, said Reinhold.
This will allow you to load all files in a directory rather than listing each file in the directory individually.
http://www.builderau.com.au/program/work/0,39024650,39196220,00.htm   (1037 words)

  
 HOME - Open-RJ
Open-RJ is an open-source library that implements readers of the Record-Jar structured text file format.
As described in the excellent book "The Art Of UNIX Programming", a Record-Jar structured format file consists of records and fields.
Hence, you may work with fields on a per-record basis, or treat the database as a single record and with all fields in the database.
http://openrj.sourceforge.net   (326 words)

  
 JAZZ: An Efficient Compressed Format for Java Archive Files Quetzalcoatl Bradley, R. Nigel Horspool and Jan Vitek ...
The Jazz file format is intended to be a replacement for the JAR file format when used for storage and distribution of Java programs.
A Jazz file is compressed to a degree that far exceeds what is possible with a JAR file.
JAZZ: An Efficient Compressed Format for Java Archive Files Quetzalcoatl Bradley, R. Nigel Horspool and Jan Vitek
http://smealsearch.psu.edu/101994.html   (300 words)

  
 JAR Files
A jar file is similar to a zip file.
is a space-delimited list of the files to be included in the jar file
This comand lists the files contained in the jar file (
http://home.san.rr.com/davlit/jarFiles.html   (163 words)

  
 Java Forums - Jar format changed to incompatible?
This happened because I use my own tool to create the jars, at http://www.xs4all.nl/~jongn/software/JDeployer.html which, from today on, makes jar files that are no longer illegal.
I got some complaints from people saying that my jar files would not run on their (Windows) machine, with the error:
I must say I am a bit annoyted at this, because all the software I write I provide as downloadable unsigned jar files.
http://forum.java.sun.com/thread.jspa?forumID=22&tstart=75&threadID=543024&trange=15   (387 words)

  
 Using JAR-related APIs Introduced in 1.2
Inspect the JAR file's manifest to see which of the classes in the archive is the main class.
In order for JarRunner to work, it must be able to perform the following tasks, all of which are accomplished by using the new APIs:
platform contains several new classes that greatly expand the number of ways that you can use JAR files.
http://www.csi.uottawa.ca/~kavanagh/LAKE/SunJavaTutorial/jar/api/index.html   (167 words)

  
 Compression Links: JAR File Format
Robert Jung's JAR format, not the JAR format used to distribute Java classes.
http://www.compression-links.info/Link/507   (39 words)

  
 RandomAccessFile opening of a file inside an executable jar?
The JAR file format is basically the same as the ZIP file format, and random access within a ZIP file entry is not necessarily constant-time since compressed formats don't naturally support jumping around.
I only want to do read-only operations on the file (which is a.wav file).
> I only want to do read-only operations on the file (which is a.wav file).
http://www.codecomments.com/message260194.html   (646 words)

  
 What Is...every file format in the world - A through E
Grid file, used in image processing of remote sensing data often to form map projections.
A file for use in an 80386 or higher microprocessor
Screen files used in the installation and instruction on use of applications
http://www.ace.net.nz/tech/TechFileFormat.html   (1063 words)

  
 Citations: Jar file format specification version - Inc (ResearchIndex)
An implementation improvement will be the modification of the PGP code so that file reading and writing can be....
Sun Microsystems Inc. Jar file format specification version 1.0.
Citations: Jar file format specification version - Inc (ResearchIndex)
http://citeseer.lcs.mit.edu/context/1003873/0   (173 words)

  
 Wotsit's Format Search
MS Compress 5.0 File Format (Incomplete) [Max Maischein]
MS Compress 6.22+ File Format (Incomplete) [Max Maischein]
Commodore 64 File Formats: ARC, ARK, SRK, FRZ, C4-, CPK, CVT, D64, D71, D81, LBR, LHA, LNX, SDA, SFX, T64, WRA, X64, ZIP and others
http://www.wotsit.org/search.asp?s=archive   (72 words)

  
 jar_(file_format) - OneLook Dictionary Search
We found one dictionary with English definitions that includes the word jar (file format):
Tip: Click on the first link on a line below to go directly to a page where "jar (file format)" is defined.
http://www.onelook.com/?w=jar_(file_format)&loc=resrd   (74 words)

  
 Jar -
JAR is a file format used to package Java programming language applications.
JAR is the jamming avoidance response, which is shown by electric fish
Jarhead is slang for a United States Marine.
http://www.grohol.com/psypsych/Jar   (222 words)

  
 Signing and Verifying JAR Files
In this section, you'll learn how to use the JDK
You can optionally sign a JAR file with your electronic "signature." Users who verify your signature can grant your JAR-bundled software security privileges that it wouldn't ordinarily have.
This section shows you how to use the JDK tool set to verify signed JAR files.
http://barry1.cityu.edu.hk/han3/2/6/9/1/1/1/1/www.cs.cityu.edu.hk/cslab/manuals/java_tut/jar/sign/index.html   (154 words)

  
 File Format. Extensions.
Taken from : File format by Leonid V. Shcherbakov
Graphics file JPEG Joint Photography Experts Group format
http://pipin.tmd.ns.ac.yu/extra/fileformat/ext/ext_j.htm   (17 words)

  
 Jar file format stupid for Java! - Reply Number 2
Each class file in the zip archive restarts the compression code, leading for absolutely no opportunity to compress repeated patterns.
This is why when you compress with Microsoft's.cab file compression for java you would get much smaller download sizes.
• New JSR's: Java Compiler API and Class Compression Format by jamie mccrindle - Nov 28, 2002 6:03 AM • Re: New JSR's: Java Compiler API and Class Compression Format by Edwin Hautus - Nov 28, 2002 4:42 PM • Jar file format stupid for Java!
http://www.javalobby.org/java/forums/m18651296   (485 words)

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