B4J Tutorials

Two great tools for testing webapps and webhooks

• By hatzisn
• Nov 27, 2021

Researching the internet I have found two great tools that can be used for testing webapps and webhooks.

The first is called ngrok. What it does is that it creates a tunel to your web app and...

 

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Webmin

• By hatzisn
• Nov 11, 2021

Webmin is a great tool I discovered out of luck (in a YT Video) today. It is a very nice linux tool that you can use it to administer your linux machines from your browser. I installed it in my...

 

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[BANanoVuetifyAD3] Deploying BANanoServer on Windows HTTPS

• By Mashiane
• Nov 5, 2021

Ola

Remember: The jetty webserver is a self encompassing webserver. These is no need for laragon development webserver here. This is detailing a step by step process on how we have managed to...

 

Last edited: Nov 5, 2021

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[BANanoVuetifyAD3] Deploying BANanoServer on Windows HTTP

• By Mashiane
• Nov 5, 2021

Ola

The BANanoVuetifyAD3 BANanoServer kitchen sink was updated yesterday to favour HTTPS connections. This tutorial is necessary due to that otherwise if you have the old version of BVAD3...

 

Last edited: Nov 5, 2021

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[ABMaterial] and SEO (Search Engine Optimization)

• By alwaysbusy
• Jan 16, 2016

I got and interesting question from Herbert asking how ABMaterial for B4J coped with SEO-optimization. As a lot of other...

 

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[BANanoVuetifyAD3] Installing class templates to speed up development

• By Mashiane
• Oct 19, 2021

Ola

A step by step process of how to install class templates to use in developing BANAnoVuetifyAD3 Apps.

 

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Better Windows Services (for B4J)

• By tchart
• Jul 15, 2020

There are many threads on the fourm regarding Windows Services e.g. https://www.b4x.com/android/forum/threads/java-as-windows-service.65741/#content

For many years Ive used...

 

Last edited: Jul 16, 2020

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B4J CCTV example

• By Erel
• Nov 20, 2013

This example is similar to the previous example...

 

Attachments

• CCTV-B4A.zip

  9.8 KB · Views: 2,869
• CCTV-B4J.zip

  1.4 KB · Views: 2,953

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Turn your Raspberry Pi into a print Server and use it with B4J

• By hatzisn
• Oct 8, 2021

This is not a B4J tutorial but since it can be used also with B4J to print documents I post it here. Read the following link:

How to Make a Raspberry Pi-Powered Print Server

Make your wired printer wireless with a Raspberry Pi

www.tomshardware.com

...

 

Last edited: Sep 25, 2024

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[BANano] (v7) Using Background Workers in your WebApps (introduction)

• By alwaysbusy
• Sep 24, 2021

The next release of BANano will have the possibility to use background workers in your WebApps. It can not be added in a BANanoLibrary, so it must be done in your final project. Background...

 

Last edited: Mar 3, 2023

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[BANano] (v7) Running Cron Jobs (in the background)

• By alwaysbusy
• Oct 1, 2021

The next version of BANano (7) will have the ability to run Cron jobs!

A Cron is Timer like functionality that runs a certain job automatically at a specified time following a predifined...

 

Last edited: Dec 10, 2022

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[BANano] (v7) New object BANanoRouter

• By alwaysbusy
• Sep 24, 2021

BANanoRouter is a full blown Router with paths that will be standard included in the next release of BANano. It allows you to better organize your code in a PWA/SPA WebApp. It is based on the...

 

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[NLP] Sentiment analysis

• By Erel
• Sep 1, 2021

The "sentiment" feature in the example project, uses NLP document categorizer feature to find whether the text is negative or positive.
The dataset for the model contains movie...

 

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[NLP] Library or Question?

• By Erel
• Sep 1, 2021

Please start with this tutorial: https://www.b4x.com/android/forum/threads/nlp-sentiment-analysis.133922/
It is quite similar.

In this tutorial we will try to detect whether...

 

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[B4J server apps] Guide to run a Linux as a Windows 10 Subsystem

• By alwaysbusy
• Aug 29, 2019

With the latest update for Windows 10 (version 1903), you can install a Linux distro as a Windows 10 Subsystem. This is very cool for us B4J developers as we can now very easily setup an...

 

Last edited: Aug 29, 2019

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[Example]Using the Within Class Full Access Feature

• By William Lancee
• Aug 25, 2021

When my assumptions are challenged I listen.
We all know Public variables and subs in a class are available to procedures external to the class.
But recently I learned from @LucaMs that...

 

Last edited: Aug 25, 2021

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Setting a dynamic address IP in namecheap. Program + source

• By MichalK73
• Aug 24, 2021

Hello.
Namecheap.com is probably known to many as a domain provider. You can buy an interesting domain for our project for pennies. Some time ago I put my own small OpenMediaValue server on...

 

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[B4XPages] Save the pages size and position

• By Erel
• Aug 22, 2021

Add to B4XMainPage:

B4X:

Type PagePosition (Left As Int, Top As Int, Width As Int, Height As Int, IsIconified As Boolean)
Private kvs As KeyValueStore

And:

B4X:

Public Sub SavePagePosition (Page...

 

Attachments

• Project.zip

  192.5 KB · Views: 618

Last edited: Aug 22, 2021

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STARTTLS - upgrading a non-tls socket to a tls socket.

• By Erel
• Aug 19, 2021

Upgrading from a non-tls connection to a tls connection only makes sense when dealing with a protocol that specifically requires it. It is much simpler and also a bit more secure to start with a...

 

Attachments

• smtp.zip

  3.3 KB · Views: 490

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B4J Primes Benchmark

• By Erel
• Jul 28, 2021

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.

B4X:

Sub Process_Globals

End Sub...

 

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