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Welcome to B4X forum!
B4X is a set of simple and powerful cross platform RAD tools:
- B4A (free) - Android development
- B4J (free) - Desktop and Server development
- B4i - iOS development
- B4R (free) - Arduino, ESP8266 and ESP32 development
Search Results
B4J Code Snippet Icon System Tray Example (Inline Java version) - jkhazraji Mar 15, 2025 (3 reactions) Private ps As JavaObject End Sub Sub AppStart (Form1 As Form, Args() As String) MainForm = Form1 MainForm.RootPane.LoadLayout("Layout1") Dim JavaFXTrayIconSample As JavaObject JavaFXTrayIconSample.InitializeNewInstance(getPackageName & ".main$SystemTrayExample", Array(Null)) End Sub Private Sub getPackageName() As String Dim joBA As JavaObject joBA....GetField("packageName")) Return joBA.GetField("packageName") End Sub #if JAVA... B4J Code Snippet B4J Single Instance checker (Windows & Linux) irrespective of the Java version and packager used - walt61 Jul 4, 2023 (1 reaction) exception "java.sql.SQLException: database is locked" if another instance was already.../threads/new-sqlite-jdbc-version-3-36-0-1-2021-06-30.132348/
EDIT: added the 'Note' comment... B4J Library [tool] Compile project with different version of Java - Erel Jan 31, 2021 (9 reactions) Don't use this. Starting from B4J v8.80 there is a built-in option (#JavaCompilerPath): https... these comments to your project:
'Compile with Java 8: ide://run?file=%B4X%\ProjectCompiler.jar... B4J Question [RESOLVED I think] java version for AWS Lambda - JackKirk Jan 27, 2024 Hi,
I'm after a bit of java knowledge that escapes me.
I would like to explore using AWS Lambda (https://docs.aws.amazon.com/lambda/latest/dg/welcome.html)
There seem to be a range of java... B4J Question [Server] Java runtime version - Alessandro71 Oct 30, 2025 Currently, B4J has JDK 19 as the supported version and my jar is compiled on that.
While setting up an hosting environment for a jServer-based application on AWS, I have only choices between the Amazon custom JRE 17, 21 or 23.
By best guess I'd choose 21, but is there any caveat to be aware of?... B4J Tutorial CSS Utils and JavaFX version (FYI) - PaulMeuris Oct 18, 2022 (1 reaction) When using the CSS Utils library in a new B4J project i found that there is a newer document for the Javafx CSS properties webpage. In the (old - 2015) thread CSS Utils you can find a link to the CSS properties (Javafx 1.3). The latest version of the CSS Utils library uses javafx 8. The new link is: Javafx 8. 134941 The old document mentions under the heading Labeled for a label text wrap: -fx-text-wrap. In the new document this changed to: -fx-wrap-text This might be a little confusing... B4J Question Java version and Lambda Expressions - Roycefer Jun 28, 2015 Using lambda expressions in inline Java code results in the following compile-time error:
B4J version: 3.02
Parsing code. (0.00s)
Compiling code. (0.02s)
Compiling generated Java code... B4J Question Confusion about Java version - marcick Oct 7, 2021 "java -jar sample.jar" and everything works.
But wich java version is using my app in... where I have installed B4J, I have downloaded OpenJdk-11 in c:\Java folder. Then I declare the Java.exe... Other MSSQL database Connection: inline-Java version - jkhazraji Nov 6, 2021 .LoadLayout("Layout1")
MainForm.Show
Dim MyJO As JavaObject = Me
Dim server...))
Log(s)
End Sub
#if Java
import java.sql.DriverManager;
import java.sql.Connection;
import java.sql... B4J Question B4j IDE crashes after clicking on List variables when using JAVA version OpenJDK 19 - johnerikson (first post) Aug 3, 2025 Good!
Super and impressive that it got a solution. It also works with JWC args.
Thanks!... Page: 1 2 3 4 5 6 |