"jar -ufe" Command to Create an Executable JAR

Q

What is the "jar" command to create an executable JAR? I know the starting class name in the JAR file.

✍: FYIcenter.com

A

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 with the Hello class:

\fyicenterjar>"%java_home%\bin\jar" -uvfe myNew.jar Hello
updated manifest

\fyicenter>"%java_home%\bin\java" -jar myNew.jar
Hello new world!

\fyicenter>"%java_home%\bin\jar" -xvf myNew.jar

\fyicenter>type META-INF\MANIFEST.MF
Manifest-Version: 1.0
Created-By: 1.8.0_45 (Oracle Corporation)
Main-Class: Hello

As you can see from the output, "jar -uvfe myNew.jar Hello" command just added "Main-Class: Hello" to the MANIFEST.MF file. Of course, you can manually, edit the MANIFEST.MF file and put it in the JAR file.

Back to FAQ for JDK JAR (Java ARchive) Tool.

2016-06-13, 2380👍, 0💬

💬 2020-04-16 Shahzaib: Assalam alaikum Respected Sir!Thank you very much

"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, 4354👍, 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, 3490👍, 0💬

"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, 2605👍, 1💬

💬 2016-09-25 gee: the game is good

"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, 2510👍, 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, 2381👍, 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, 2088👍, 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, 2055👍, 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, 2047👍, 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, 1956👍, 0💬

All rights in the contents of this web site are reserved by the individual author. FYIcenter.com does not guarantee the truthfulness, accuracy, or reliability of any contents.