B4J Tutorials

Update: 05 Nov 2017 - Included a section at the end to explain how to access your app from outside of the VM.

Congratulations! You’re at Tutorial 9 and you’re now ready to run your B4J app...

 

For security reasons GCP will not allow plain old FTP access to their servers. But, they do offer a nice alternative to copying files from your desktop and onto your VM. It’s a bit like using...

 

After installing the MariaDB database we need to change the password for the root user. If the password is not changed then anyone could log into your database do what they like to it.

We’ll do...

 

Okay fellow Noobs, we’re at the point where we want to run our superduper fabulistic world changing app. We will need to have the Java Runtime installed on the VM instance. This requires running a...

 

Doing something useful with your VM instance requires that you connect to it. By that I mean opening a console window that you can use to execute commands or start/stop services. To open a console...

 

We’re now ready to start creating virtual machines that will be used to host our B4J application/s. We’ll be creating a small VM in this tutorial.

On the left side of the screen, in our...

 

This is the most difficult and most time consuming part of the whole process!

Actually, it’s not time consuming at all. However, you must already have a Google Account. If you don’t already have...

 

Ola there

I have been thinking of a name for the ABMaterial framework fans. ABMaterialians! ha ha ha! That's long. ABMatians, sounds cool, I could be wrong though...

Anyway, as part of my...

 

Erel posted this nice tutorial to create pdf's on Android: https://www.b4x.com/android/forum/threads/printing-and-pdf-creation.76712/#content

For B4J there are some examples but these are...

 

ABMaterial has always been one of the fastest RADs from its start, now over 2 years ago. And this dispite being a very big library. But with 3.81 (4.0?), we'll take it to a whole new level...

 

As part of my ABMaterial explorer tendencies, I delved on working on a dashboard that will give stats about the previous and latest version of ABMaterial. This is based on 3.5 and 3.75 libraries...

 

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

This example demonstrates several important...

 

Simple message box:

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

Message box with result:

...

 

This is a tiny tutorial on how to load a .obj file into a 3d MeshView and display it in B4J.

I have loaded .obj files that I downloaded from the web, but they tend to not stick to the same format...

 

Recently I passed this article on "makezine" and thought it would be helpful for all Raspberry developers.

 

Hi there

I have been requested to do a simple something on how one can create a simple ABMaterial WebApp using the Pen&Paper code generator. The attached video seeks to demonstrate with a simple...

 

Michał asked me in the feedback app to implement some kind of Star Rating component. As this is not so commonly needed, I thought this could be another good example of an ABMCustomComponent...

 

ABMaterial 3.20 will introduce a very cool debug feature! When developing web apps, the console (e.g. in Chrome) can be your best friend. But on mobile devices, you don't have that available...

 

Hi there

For this exercise I wanted to have a dashboard that will provide me with total Expenditure vs Budget as demonstrated in Figure 1 below. In this table, records are added that will have a...

 

If you run a non-ui app in release mode and then close the IDE, then the process will continue running.
It is difficult to later kill it with Windows task manager as all the Java processes names...