B4J Tutorials

Edit: See this page for more information about B4J: https://www.b4x.com/b4j.html

 

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...

 

The computer chooses a number and you need to find the correct number.

Sub Process_Globals
   Private fx As JFX...

 

This is a simple idea to replace the function "eval" or "execute" that other programming languages have. The purpose is to retrieve a variable from a string:

How to iterate variable...

 

v10.0 - October 16, 2023 - https://www.b4x.com/android/forum/threads/b4j-v10-0-is-available-for-download.155241/

• Code snippets...

 

This is an old and irrelevant tutorial.

 

The JVM (Java Virtual Machine) performance is quite amazing.

This means that we can use B4J to build apps that handle huge files.
I downloaded a 3.7GB log file from this server. Each line...

 

The following module attributes are supported:

Main Module

• MainFormWidth / MainFormHeight - Set the main form initial width and height.
• AdditionalJar - An...

 

A Canvas node is used to magnify a small window under the mouse cursor.

The main code is:

Sub iv_MouseMoved...

 

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...