B4J Tutorials

This example demonstrates how a Raspberry Pi board can be controlled from the browser.

It tracks the switches state and...

 

B4J v2.00 adds support for web applications based on WebSocket technology. With WebSocket The browser and the server...

 

In my morning readings i came across an interesting and very well explained tutorial on how the browser works and how can we optimize the payload that the server sends to the browser.

You can...

 

Online link: http://basic4ppc.com:51042/quiz/index.html

This is an example of an online quiz. When the...

 

I took Ilan's challenge and implemented a minimum spanning tree algorithm.

You can see the solution online: https://b4x.com:51041/mst/index.html

The algorithm used is Prim's...

 

In this tutorial we will develop the following web app:

There are three components to this solution:

Main module...

 

This OpenSource WebApp is based upon a request to manage team events from Android, iPhone, Windows and Linux (Raspberry) devices.
The solution is a B4J WebApp, using jQuery Mobile (jQM)...

 

This example is a simple Task Manager using HTML to access the server by the Client.
The tasks are stored in a SQLite database, which is managed by the B4J WebServer.
Read...

 

The web app framework can be easily extended with new elements and new features.

In this example we use two elements from jQuery UI library...

 

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...

 

Online example: http://basic4ppc.com:51042/chat/index.html

This example demonstrates several important...

 

WebUtils.ReplaceMap together with the CreateMap keyword are useful for building dynamic strings, especially for html output.

For example, in the chat example when a user writes a message we...

 

Ola

I just ran into this link, https://www.keycdn.com/blog/web-development-tools

And besides XAMPP, which I have been using for my personal web development projects, there is Laragon...

 

Hi

So I wanted to make SithasoDaisy Static Demo App a dApp, so that it runs on the Internet Computer.


1. Create an account on fleek, https://fleek.co,
2. Link your Github profile...

 

In this tutorial, I want to show you, how you can upload your Java Application to Windows Store. Here you can find a test Application in the Store.

System requirements:

• Windows...

 

In this tutorial, I want to show you, how you can upload your Java Application to the Mac AppStore.
Here you can find a test Application in the Store.

Requirements:

• MacOS...

 

I was making the switch from Java 8 to Java 11 and wanted to use the 'Integrated B4JPackager11' as explained by @Erel in...

 

SQLite3 has the REGEXP keyword. That means we can do SQLite queries like

SELECT * FROM table1 WHERE col1 REGEXP '\d+[a-z]+\d*';

.

Unfortunately, the REGEXP keyword references an SQLite...

 

So...

I wanted to test the new feature of creating BaNano libs to use with ABMaterial...
I basically copied the hover example as it was what I needed for time being, and followed the...

 

Hi Alain,

When "creating" custom libraries in B4X one can introduce a few properties, like Author, Version etc....
I tried using those properties, but it has no effect in the lib, I'm guessing...