Being able to run java application on different computers without JDK

Question

How can I send my java application to a friend without having to send the entire project and being dependent on him having JDK? I'm aware of the .jar-file's existence, but I don't know how to proceed. I would like to be able to just send him the .jar-file or an executable file.

Any ideas?

If you send the JAR, he dows not need to have the JDK; he just needs the JRE (the program at java.com) — gparyani
– gparyani, Commented May 17, 2013 at 18:45
If you work with NetBeans, when you "build" your project, a dist folder is generated, and your "packed" app is stored there. You can send the contents of this folder. Read the "readme" file in that folder. — Barranka
– Barranka, Commented May 17, 2013 at 18:47
Thank you @Barranka, using the dist folder works somewhat like I wanted. I'm using NetBeans as you suggested. — Erik
– Erik, Commented May 17, 2013 at 19:05

Pedro Montoto García · Accepted Answer · 2013-05-17 18:46:00Z

1

Compile it to native code using a compiler such as http://en.wikipedia.org/wiki/GNU_Compiler_for_Java

Also, he doesn't need the JDK, just the JRE.

answered May 17, 2013 at 18:46

Pedro Montoto García

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2 Comments

Extreme Coders Over a year ago

GCJ is a dead project and moreover it does not support all Java features such as AWT and Swing

Julien Bodin Over a year ago

So consider the use of Excelsior jet, but it is overkill for just not have to download a JRE :)

Erik · Accepted Answer · 2013-05-17 19:20:16Z

0

Did what @Barranka said regarding the dist folder, didn't know that worked until I read the readme file as @Barranka suggested.

So to quote what @Barranka said:

If you work with NetBeans, when you "build" your project, a dist folder is generated, and your "packed" app is stored there. You can send the contents of this folder. Read the "readme" file in that folder. – Barranka

answered May 17, 2013 at 19:20

Erik

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1 Comment

Julien Bodin Over a year ago

Your friend still have to download a JRE if it doesn't have one.

Kaushik Krishnakumar · Accepted Answer · 2013-05-17 20:20:35Z

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You can send the JAR file alone provided your program does not depend on other libraries. Assuming that there is a main() method and Main Class is configured in the JAR's manifest, the person can run it by Double Clicking (on windows) or use the command line

java -jar <jar_file_name>.jar

answered May 17, 2013 at 20:20

Kaushik Krishnakumar

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Comments

Julien Bodin · Accepted Answer · 2013-05-17 21:31:32Z

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You cannot execute a Java application without a Java Virtual Machine, so you need one. Your friend has to download a JRE/JDK, or you can provide it with your application directly as it (the JRE and your project in an archive) or provide it as a native compile code using GCJ or Excelsior Jet which will compile your application and a JRE.

As you can see the is no solution for your question, but there is one for your problem : ask your friend to download a JRE.

answered May 17, 2013 at 21:31

Julien Bodin

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