B4J Tutorials

Parsing huge text files

• By Erel
• Nov 24, 2013

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...

 

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Modules Attributes

• By Erel
• Dec 8, 2013

The following module attributes are supported:

Main Module

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

 

Last edited: Jan 30, 2014

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Magnifying glass example

• By Erel
• Nov 24, 2013

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

The main code is:

B4X:

Sub iv_MouseMoved...

 

Attachments

• MagnifyingGlass.zip

  99.5 KB · Views: 1,081

Last edited: Apr 4, 2018

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RDC client

• By Erel
• Nov 18, 2013

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

 

Attachments

• RDC-Client.zip

  3.4 KB · Views: 1,713

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Moving Smiley Example

• By Erel
• Nov 18, 2013

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

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

 

Attachments

• Smiley.zip

  3.7 KB · Views: 1,849

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