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B4J Question The future of B4J
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A new version is close.
At least a new version with JAVA 19 for INTERNAL PACKAGER is coming soon.
jGoogleMaps library
This library is similar to B4A and B4i GoogleMaps libraries. It is based on this open source project: https://github.com/dlsc-software-consulting-gmbh/GMapsFX/ (Apache 2 license). Under the hood it uses JavaFX WebView with GoogleMaps JavaScript API V3. Using the map is quite simple. You need...
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A new version is close.
At least a new version with JAVA 19 for INTERNAL PACKAGER is coming soon.
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Does it greatly expand the possibilities? Performance? I would like to know more specifically... For example, I have an old laptop (a hobby to restore old thingsLOOK At this thread
jGoogleMaps library
This library is similar to B4A and B4i GoogleMaps libraries. It is based on this open source project: https://github.com/dlsc-software-consulting-gmbh/GMapsFX/ (Apache 2 license). Under the hood it uses JavaFX WebView with GoogleMaps JavaScript API V3. Using the map is quite simple. You need...
A new version is close.
At least a new version with JAVA 19 for INTERNAL PACKAGER is coming soon.
) when I run a form with a b4j button, I see how the form appears, and then with a delay a small button appears .... In another old programming environment related to delphi, the same form starts instantly and the button is already (
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B4J core performance is very good.
Two examples: https://www.b4x.com/android/forum/threads/b4j-primes-benchmark.132951/
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JavaFX, the UI framework, has good performance on modern computers. Check X2 games: https://www.b4x.com/android/forum/threads/xui2d-x2-v2-0-2021.131279/#content
I guess that your old laptop doesn't have a supported hardware accelerated display driver. No update of B4J can improve this.
Two examples: https://www.b4x.com/android/forum/threads/b4j-primes-benchmark.132951/
[Server] Performance measures
B4J server library is based on an open source project named Jetty. Jetty server performance is excellent which means that B4J server performance is also excellent. The following numbers are the result of a simple test where one program sends many requests to the server program. Both running on...
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JavaFX, the UI framework, has good performance on modern computers. Check X2 games: https://www.b4x.com/android/forum/threads/xui2d-x2-v2-0-2021.131279/#content
I guess that your old laptop doesn't have a supported hardware accelerated display driver. No update of B4J can improve this.
This question cannot be answered. You need to tell us which possibilities you are currently missing.
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GMA X3100
delphi compiler, fpc, C#, the button on the form is rendered when a window appears in windows 8.1 in B4J the button appears with a delay... So there were thoughts about productivity ...
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Not sure is it because Windows is always standby to run C# app natively. While for java app, it needs to start up JVM. I think same if try to run a Python app, which need to use PVM. How about run the app in other OS like macOS, Linux, raspberry Pi OS?
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There is no relation between the thread title and the first post and the compatibility with your old laptop. As I wrote, a new version of B4J will not affect the performance of JavaFX on your old laptop. And overall the performance of B4J is very good.
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I tried it only in Windows, but by the way I have to try it on Phyton I became curious.
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I wanted to ask in general about the prospects for the development of the environment, the question of productivity stuck to
B4X is the best I've seen in terms of simplicity and accessibility, and code reuse between B4A and B4J is great. Everything is compact without bulky IDEs with their tons of libraries
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Yeah, you cant expect modern frameworks to perform well on ancient hardware, its just not feasible. C, Delphi, etc are older and more performance optimized languages that work better on older machines to a degree.... Especially C++ and C.
Try running Windows 10 on spinning rust in a Core 2 Duo or Pentium 4 system and watch the pain unfold.
Java is a very heavy runtime and was always known to have severe performance penalties in the early days on now-ancient hardware when that hardware was current, Nowadays its fine because hardware has caught up in performance to run the slow bloat of Java itself.
Anyways, none of that has any correlation to B4X, and as Erel said, B4X changes wont affect anything. That is all Java.
As languages become more abstracted away from their hardware and dependencies on runtimes and libraries increases, performance penalty will increase with it due to the amount of excess code that has to be run to do translation back down to the hardware level, plus the memory management/garbage collector code, etc. etc. VB6 was pokey on older hardware too for this reason while native C was super fast.
The more layers there are on top, the longer it takes you to get back down to the bottom... The solution? dig down faster! (thats how i see computing anymore)
Try running Windows 10 on spinning rust in a Core 2 Duo or Pentium 4 system and watch the pain unfold.
Java is a very heavy runtime and was always known to have severe performance penalties in the early days on now-ancient hardware when that hardware was current, Nowadays its fine because hardware has caught up in performance to run the slow bloat of Java itself.
Anyways, none of that has any correlation to B4X, and as Erel said, B4X changes wont affect anything. That is all Java.
As languages become more abstracted away from their hardware and dependencies on runtimes and libraries increases, performance penalty will increase with it due to the amount of excess code that has to be run to do translation back down to the hardware level, plus the memory management/garbage collector code, etc. etc. VB6 was pokey on older hardware too for this reason while native C was super fast.
The more layers there are on top, the longer it takes you to get back down to the bottom... The solution? dig down faster! (thats how i see computing anymore)
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Delphi and Free Pascal applications are in the same league as C. Their compilers (which are much faster than any C++ compiler on the marker) create pure native code. They also don't use GUI frameworks that feel alien on any platform. Especially Free Pascal/Lazarus only uses native widgets on all supported platforms which does not only make applications look and feel "right", but also significantly improves their performance.
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FYI I can already use java 19 with the current internal packager. I had to upgrade to javafx 19 to for the new WebView which supports all the new css effects on WordPress websites.LOOK At this thread
jGoogleMaps library
This library is similar to B4A and B4i GoogleMaps libraries. It is based on this open source project: https://github.com/dlsc-software-consulting-gmbh/GMapsFX/ (Apache 2 license). Under the hood it uses JavaFX WebView with GoogleMaps JavaScript API V3. Using the map is quite simple. You need...
A new version is close.
At least a new version with JAVA 19 for INTERNAL PACKAGER is coming soon.
Upvote
0
I downloaded the OpenJFX Build (Windows Zip) here:
JDK 19 Releases
ThenI changed the path in B4J and it worked just like that actually
I'm Using MySql, Hikari, JNA, JPoi, Google maps... etc.. all worked without doing any modification to my code. I've switched about 2 months ago
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