B4J Tutorials

Before you start: You need some experience with php, Apache Servers, OkHttpUtils, Lists, Maps and JSON structures.

This is an updated example of how to

- communicate with a apache server via...

 

jControlsFX library v1.20 includes a control named PropertySheet. With this control it is very simple to create forms with many fields.

The data for these fields comes from a custom type...

 

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

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

 

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...

 

*START OF NOTICE

As of 02 FEB 2021, this project is is no longer maintained as it has given birth to BVAD3.

This project was a joy to create, however like...

 

Hello.

I see that many people are asking how to write an application using ABMaterial I created a small course on Youtube. I tried to convey the examples of creation by slowly using new...

 

Hi

I am currently trying this out: https://www.callmebot.com/

The instructions are rather simple to follow.

 

Ola

What is an audit trail? As per Wikipedia...

An audit trail (also called audit log) is a security-relevant chronological record, set of records, and/or destination and...

 

The Accordion container (added in B4J v5.0) is a container similar to TabPane. It holds TitledPanes. These are panes with titles.

Using the accordion is quite simple. Add the...

 

Starting from B4J v3.50 the IDE includes a visual designer similar to B4A and B4i designer.
The output of the designer is a bjl file. This file can be loaded to other panes or containers with:

...

 

This is a port of B4A GameView library and modules.

If you are not familiar with it then start with these tutorials:
https://www.b4x.com/android/forum/threads/20038/#content...

 

INTRODUCTION

B4J has an excellent jetty based server: the jServer library. BANanoServer uses this lib and provides you with a lot of goodies to make building WebApps with B4J very simple...

 

This example downloads an html page, parses it and finds the image links. It then uses a class named ImageDownloader to...

 

The attached project uses inline Java code and the ITEXT library to create various types of 1D and 2D barcodes. The barcodes are store in a PDF file(s). Change the code in the B4J class or add...

 

PrintHtml is a Windows utility that prints html files. You can see more information about it here: http://www.b4x.com/android/forum/threads/print-with-printhtml-tool.35492/

In this example...

 

The jPOI library allows you to read and write Excel workbooks: https://www.b4x.com/android/forum/t...t-excel-xls-and-xlsx-workbooks.57392/#content

The library...

 

This document is intended to add a little understanding as to how Resumable Subs actually work under the bonnet and is intended as a complement to how they are used as Erel explains in his...

 

I found this benchmark that tests the same algorithm in multiple programming languages and decided to test it in B4J.

I've implemented the two algorithms.

Sub Process_Globals

End Sub...

 

You can create an RDC client with B4J in the same way as done with B4A: Remote Database Connector - Connect to any remote DB...

 

This example uses a Canvas node together with a Timer to draw a moving smiley.

The Canvas node is a special node the you...