B4J Tutorials

Creating Excel Reports with jPOI - Part II

Report Pivot Table - Pivot Chart
Here in the part II of the tutorial I will present a solution including Pivot table and Pivot chart.

The attached screen shot - pivotcharttemplate.png -...
 
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Creating Excel Reports with jPOI - Part I

This tutorial should be viewed as an additional resource to the already published tutorials by Erel.

Introduction
The real power for using MS Excel workbooks as reports lays in the fact...
 
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JVM Memory Settings, this may help you

Hi All

I came across this, might be help to users who are not well versed in area.

http://jvmmemory.com/

Regards

John

p.s @Erel this might be a good sticky post
 
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Floating ContextMenu using jNativeHookB4j

This is an example of using @Roycefer 's jNativeHook to monitor all mouse events, even outside of the current app. It uses a ContextMenu to replicate the right click functionality. Default...
 

Attachments

  • FloatingContextMenu-0-7.zip
    7.1 KB · Views: 671
  • cmenu.css.zip
    1 KB · Views: 693
  • FloatingContextMenu-0-8-6.zip
    10.3 KB · Views: 740
  • Test - cmenu.css.zip
    1 KB · Views: 626
  • FCMTest1.zip
    10.3 KB · Views: 684
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[ABMaterial] Downloading a file from the server. My example

Hello.

Sorry for my English.

I've been struggling with the problem of sending any file from the server to the client from the ABMaterial. In the end, I did it and it works. It may be useful to...
 
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[ABMaterial] Firebase Auth for Users in 1.20

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[RPi Model 3] Sunfounder Super Kit v2.0

I have just purchased this kit and have started to go through the examples. In an effort to help others like me with little or no knowledge of how to port the examples to B4J, I thought it might...
 
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[NOT YET A TUTORIAL] How to set up and run your B4J based RDC server from SCRATCH

Hi Guys...

So, This hopefully will become a tutorial about how to set up and run your B4J based RDC server on your vps...
This tutorial is aimed at those that, like me, take their very first...
 
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[server] Background Workers

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Print with PrintHtml tool

PrintHtml is a small Windows utility that you can use to print from your app.

First you should download PrintHtml.exe and also the DHTML Editing Control...
 

Attachments

  • Print.zip
    1.4 KB · Views: 2,139
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Generate Word document and save as PDF from B4J via VBS-script

This one generates a Word document (you need to have Word installed!) and saves it as a PDF (for other formats just change the vbs-script)

To start see here...
 
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Execute Windows VBS-Scripts from B4J

I needed to read the remaining battery charge from my laptop acting as a server to give an alert if the charge is under xx %. There are a lot of examples to use a vbs-script to gather this...
 
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Android2ABMaterial: A Personal Experiment

Hi

Well, as a newbie to the ABMaterial framework, about a month and a couple of days now, I decided to take a journey to see if I can create a webapp using the ABMaterial framework. This app...
 
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[Pen&Paper] How I created my first ABMaterial WebApp without writing any code

Attachments

  • lfjss.pdf
    48.1 KB · Views: 592
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[ABMaterial] Google Chatrs

Hi ,
there is a way to load a google chart engine into abmaterial?
i have used this in websocket event but with no success.
B4X: 
ws.Eval( "$('head').append('<script type=text/javascript...
 
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Using CustomBuildAction to your advantage



CustomBuildAction is a powerful ally.

Generally to do anything useful you need to call a...
 

Attachments

  • Demo.zip
    1.5 KB · Views: 564
  • 2016-11-11 08_20_18-Compile (Build_ Default).png
    13.8 KB · Views: 1,211
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Non-UI Applications

B4J currently supports two types of applications: UI applications (based on JavaFX) and Non-UI applications.

Non-UI applications are standard Java applications. Usually the input to such...
 

Attachments

  • curl.zip
    2.8 KB · Views: 1,484
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UI App (JavaFX) Tutorial

When you create a new UI project, the project starts with a single code module with the following code:
B4X: 
#Region  Project Attributes
   #MainFormWidth: 500
   #MainFormHeight: 500
#End Region...
 
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[ABMaterial] DateTimePicker Extented for Weeks (1.20)

The ABMDateTimePicker has, next to date and time selection now also week selection. I've searched some time to find a good one, but didn't so I decided to write it myself. Looks like a great...
 
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[Server] Google Charts service

Attachments

  • google_charts.zip
    2 KB · Views: 1,175
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