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"jar -uvf" to Update a JAR with New Files
What is the "jar" command to update an existing JAR file with new or additional files? To update an existing JAR file with new or additional files, you can use the "jar -uvf jarname files" command. For example, the following session updates an existing JAR file with some additional classes: \fyicent...
2016-09-25, 1133👍, 1💬

💬 2016-09-25 gee: the game is good

"jar -uvf" Command to Replace a File in a JAR
What are "jar" commands to replace 1 class file in a JAR file? I need to modify one class file and put it back to the JAR. If you have a large JAR file and just want to replace 1 class file with a modified version, you can follow these steps: 1. Get the source code of that 1 class file. 2. Make chan...
2016-06-13, 941👍, 0💬

"jar -ufe" Command to Create an Executable JAR
What is the "jar" command to create an executable JAR? I know the starting class name in the JAR file. If you know the starting class name and that class is in the JAR file, you can use the "jar -uvfe jarname classname" to make JAR file as executable. For example, I want to make myNew.jar executable...
2016-06-13, 899👍, 0💬

"jar" Commands to Merge Two JAR Files
How to merge two JAR files with "jar" commands? I am tired of specifying multiple JAR files in the classpath. If you are tired of specifying multiple JAR files in the classpath, you can merge all JAR files into a single JAR file using these steps: 1. Put all JAR files into .\lib folder. 2. Create a ...
2016-06-03, 954👍, 0💬

"jar" Command Syntax Rules
What are syntax rules of the "jar" command? I am confused on how to specify different options, like x, v, f, i, etc. The "jar" command usage description is difficult to follow. Here are some "jar" command syntax rules that will help you: 1. The usage description given by entering "jar" with no optio...
2016-06-03, 822👍, 0💬

"jar" Commands to Split A JAR File
How to split a JAR file into two JAR files? I jave a huge JAR file and I only need to use one package of classes from the JAR file. If you have a huge JAR file and want to build a smaller JAR file with classes from one package from the huge JAR file, you can follow these steps: 1. Put the huge JAR f...
2016-05-28, 1179👍, 0💬

List Entries "jar -t" Command Syntax
What are syntax rules of the "jar -t" command for listing entries from a JAR file? I am confused on how to specify different options, like v and f. The "jar -t" command allows you to display entries from an existing JAR file. It has the follow syntax: jar -t[vf] [jar-file] [pattern] "v" option flag ...
2016-05-28, 837👍, 0💬

Create JAR "jar -c" Command Syntax
What are syntax rules of the "jar -c" command for creating a JAR file? I am confused on how to specify different options, like v and f. The "jar -c" command allows you to create a new JAR file. It has the follow syntax: jar -c[vfmMe0] [jar-file] [manifest-file] [entry-point] list "v" option flag ret...
2016-05-22, 823👍, 0💬

Extract Entries "jar -x" Command Syntax
What are syntax rules of the "jar -x" command for extracting entries from a JAR file? I am confused on how to specify different options, like v and f. The "jar -x" command allows you to extract entries from an existing JAR file to the current folder. It has the follow syntax: jar -x[vf] [jar-file] [...
2016-05-22, 815👍, 0💬

Update JAR "jar -u" Command Syntax
What are syntax rules of the "jar -u" command for updating a JAR file? I am confused on how to specify different options, like v and f. The "jar -u" command allows you to update an existing JAR file. It has the follow syntax: jar -u[vfme0] [jar-file] [manifest-file] [entry-point] [list] "v" option f...
2016-05-15, 772👍, 0💬

Index JAR "jar -i" Command Syntax
What are syntax rules of the "jar -i" command for indexing a JAR file? The "jar -i" command allows you to add or update index to an existing JAR file. It has the follow syntax: jar -i jar-file "jar-file" must be provided to specify the JAR file, to which the index entry META-INF/INDEX.LIST will be a...
2016-05-15, 759👍, 0💬

FAQ on JAR (Java ARchive) File Format
Where can I find answers to FAQ on JAR (Java ARchive) file format? I want to know the internal structure of a JAR file. You can find your answers here at jar.FYIcenter.com. We have compiled answers to some basic FAQ (Frequently Asked Questions) on JAR (Java ARchive) file format: What Is JAR (Java AR...
2016-05-07, 453👍, 0💬

What Is JAR (Java ARchive) File Format
What Is JAR (Java ARchive) File Format? JAR (Java ARchive) is a platform-independent file format that aggregates many files into one file. Originally, JAR file format is designed to bundle multiple Java applets and their requisite components (.class files, images and sounds) into a single file, whic...
2016-04-23, 396👍, 0💬

JAR (Java ARchive) File Format Specification
What Is Specifiction of JAR (Java ARchive) File Format? JAR (Java ARchive) is a platform-independent file format that aggregates many files into one file. The specification of JAR file format is divided into several areas: 1. JAR Internal Archive Structure - When files and folders are archived into ...
2016-04-23, 367👍, 0💬

JAR Manifest File Format Specification
What Is Specifiction of a JAR manifest file? If a manifest file is provided in a JAR file, it must meet the following specifications: 1. The manifest file must be locaed at META-INF/MANIFEST.MF in the JAR file. 2. The content of a manifest file can be divided into sections separated by empty lines. ...
2016-04-21, 421👍, 0💬

Main Attributes of JAR Manifest File
What are main attributes of a JAR manifest file? Main attributes of a JAR manifest file are attributes given in the first section to provide overall information of the JAR file. Main attributes fall into the following different groups: 1. General Main Attributes: Manifest-Version: Defines the manife...
2016-04-21, 339👍, 0💬

Digital Signatures of JAR Files
What are digital signatures of JAR files? And where are they stored in the JAR file? Digital signatures are encrypted digests of entries archieved in the JAR file. Digital signature information is stored in multiple files under the META-INF path name: META-INF/MANIFEST.MF - Contains digests of JAR e...
2016-04-15, 394👍, 0💬

Per-Entry Attributes of JAR Manifest File
What are per-entry attributes of a JAR manifest file? Per-entry attributes of a JAR manifest file are attributes associated to each individual entry in the JAR file. Per-entry attributes are specified in separate sections, one section per entry. Main attributes fall into the following different grou...
2016-04-15, 359👍, 0💬

JAR File Index Specification
What is the JAR file index specification? What tools can I use to generate the index file? The index file of a JAR file contains directory information as to which classes and resources reside in the JAR file. The index file is stored as META-INF/INDEX.LIST in the JAR file. The index file specificati...
2016-04-12, 497👍, 0💬

Tools to Generate and Manage JAR Files
What tools can I use to generate and manage JAR files? There are a number tools you can use to generate and manage JAR files: 1. JDK "jar" Tool - The "jar" tool from the JDK package is probably the best tool to generate and manage JAR files. It offers many features like creating a new JAR file, upda...
2016-04-12, 403👍, 0💬

"jar -cvfm" to Create a JAR with a Manifest File
What is the "jar" command to create a JAR file with my own manifest file? To create a JAR file with a folder and your own manifest file, you can use the "jar -cvfm jarname manifestfile foldername" command. For example, the following session creates a new JAR file with all files in a sub folder and a...
2015-11-09, 1106👍, 0💬

"jar -cvf" to Create a JAR with a Folder
What is the "jar" command to create a JAR file with files in a folder? To create a JAR file with all files in a folder, you can use the "jar -cvf jarname foldername" command. For example, the following session creates a new JAR file with all files in a sub folder, \fyicenter>"%java_home%\bin\ja r"-x...
2015-11-09, 754👍, 0💬

What Is JDK JAR (Java ARchive) Tool
What Is JDK JAR (Java ARchive) Tool? Can I use it to open JAR file? The JDK JAR (Java ARchive) tool, or the jar tool, allows you to create and manage JAR files. The jar tool combines multiple files into a single JAR archive file. jar is a general-purpose archiving and compression tool, based on ZIP ...
2015-11-09, 510👍, 0💬

FAQ for JDK JAR (Java ARchive) Tool
Where can I find answers to FAQ for JDK JAR (Java ARchive) Tool? I want to know how to know where to find it and how to it. You can find your answers here at jar.FYIcenter.com. We have compiled answers to some basic FAQ (Frequently Asked Questions) for JDK JAR (Java ARchive) Tool below: What Is JDK ...
2015-11-09, 632👍, 0💬

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