B4J Tutorials

This is a Bash shell script that allows installing B4J and B4A in linux systems, along with their required dependencies. It is very functional. But for now only Ubuntu is fully...

 

SQLite databases are very easy to use as they don't require any additional software or configuration.

SQLite support for concurrent access is not comparable to server based databases such as...

 

This example uses jNet library together with the MailParser module to build a program that responds to emails.

Although...

 

Hi there

NB: Where possible, please include a simple project that demonstrates your use case.

Do you have any questions about SithasoDaisy UI Toolkit?

You can shoot it here...

 

This example is a port of the following desktop example: http://www.b4x.com/android/forum/threads/jsontree-tool-to-help-with-json-parsing-b4a-b4j.35963/...

 

I'll try to collect tips related to the UI elements in this thread.

In B4J (and JavaFX) the main UI element is named Node. It is similar to Basic4android View or Basic4ppc (.Net) Control.

B4J...

 

B4J allows you to show modal dialogs or modal forms.
The difference between a modal form to non-modal form is that with a modal form the calling code will only continue after the form is closed...

 

This example shows how simple it is to create network solutions with B4J, B4A and B4i.

In this case the network communication is based on UDP.

It implements a remote desktop mouse, where the...

 

Using the new jBluetooth library it is possible to communicate with Raspberry Pi devices over Bluetooth.

Bluetooth can be very useful in places where there is no local network.

The...

 

The additional libraries folder can be organized in a way that allows sharing cross platform libraries between B4A, B4J and B4i.

From now on, the recommended way to organize the additional...

 

This is my first attempt at B4J. Have not tried to do anything special to the layout etc. The aim was to get back the correct binary strings to draw Code11, Code39, Code93, EAN8 and EAN13 barcodes...

 

PrintHtml is a small Windows utility that you can use to print from your app.

First you should download PrintHtml.exe and also the DHTML Editing Control...

 

B4J server library is based on an open source project named Jetty.
Jetty server performance is excellent which means that B4J server performance is also excellent.

The following numbers are the...

 

This is an example of using @Roycefer 's jNativeHook to monitor all mouse events, even outside of the current app. It uses a ContextMenu to replicate the right click functionality. Default...

 

Hi all,

Since the lockdown everywhere, a lot of B4X users seem to want to learn ABM to make WebApps in B4J. That is great!

However, some seem to struggle a lot to get started. I understand...

 

Simple message box:

fx.Msgbox(MainForm, "This is the message", "This is the title")

Message box with result:

...

 

This is a port of this tutorial: http://docs.oracle.com/javafx/2/get_started/css.htm

It demonstrates how CSS...

 

To help with my own learning I have played with JavaObject and JavaFX to create linecharts.

Here are the 3 examples I have made I have ported the code directly from the Oracle...

 

This is an old example. Better use B4XSerializator to serialize objects.

One of the nice things about using B4J server as the backend of B4A applications is that you can send and receive...

 

B4J v1.05 adds support for the TreeView node.

TreeView as it name suggests visualizes a tree structure.

Each item in the TreeView is a TreeItem (or CheckBoxTreeItem). Each item has a list of...