B4J Question How to create standalone code for Pi?

TerraD · Apr 21, 2022

I developed with B4J on my windows machine a small program that is to be executed on a Raspberry Pi. I managed to compile and to execute it in debug mode on the Raspberry. Now I want to copy the code to the Raspberry and run it on its own.

Can anybody direct me to the documentation that shows how this has to be done?

Chris2 · Apr 21, 2022

1. Follow steps 1 & 2 of https://www.b4x.com/android/forum/threads/raspberry-pi-with-java-11.99606/#content to install Liberica JDK on the Pi.
2. Compile your app in Release mode to create the app jar file (this will be created in the ...\Objects\ folder).
3. Copy your app jar to the Pi and run the app with:

B4X:

sudo pathtojava/bin/java -jar yourapp.jar

TerraD · Apr 22, 2022

Thank you for this information Chris - it was of great help for me, as I was able to work focused. It worked very smooth. Not sure what went wrong, when I tried it myself...

2. Compile your app in Release mode to create the app jar file (this will be created in the ...\Objects\ folder).

Release mode: Project -> Build Standalone Package

3. Copy your app jar to the Pi and run the app with:

In my case I was able to start the app like this:

B4X:

java -jar myApp.jar

B4J Question How to create standalone code for Pi?

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B4J Question How to create standalone code for Pi?

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