B4J Question how can i run my project.jar

[smarmgc]

Hi, I finish my first project, but my program don't run.

only run when I execute with B4J

 

[ProgrammedComputer]

Have you added JAVA_HOME to your environment variables?
If not:

• (if you have windows 10 then search environment variables in start. if not do the following)
• Go to Control Panel, choose System.
• Choose Advanced system settings. ...
• On the Advanced tab, click Environment Variables. ...
• Click New to create a new environment variable.

Now in the Variable name field, type JAVA_HOME
click Browse Directory and select the bin folder in your installed java directory
for example: C:\Program Files\Java\jdk-12.0.2\bin (Note that it shouldn't be exactly like this. this is just an example)
Click ok and close other windows. try running your exported jar file in your project directory/objects
Let me know if it worked

 

[DonManfred]

With Java 11 you are no longer able to create executable JARs.
You need to use a small Batch to start it. Search the Forum for an Example.

Alternatively you could use Java 8. With Java 8 the JARs are Executable.

Or use B4jpackager 11 and create an EXE for your java app.

B4JPackager11 - the simplest way to distribute UI apps

Better to start with the integrated packager: https://www.b4x.com/android/forum/threads/integrated-b4jpackager11-the-simple-way-to-distribute-standalone-ui-apps.117880/ B4JPackager11 is a B4J non-ui program that builds a package with your app jar and an embedded modularized Java runtime. It...

www.b4x.com

 

[Erel]

JAVA_HOME is not relevant.

The best way to distribute an app is with B4J Packager 11: B4JPackager11 - the simplest way to distribute UI apps

 

[Peter Simpson]

Just install Java JRE 8+ (I personally use 10.0.2 on client computers) and that's is all you need to install, double click on the .jar file and and watch your program run ?