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I need simple modbus Java library with source code. I found on google but there is .jar file and doesn't have strong using manual. Can anybody suggest me modbus library with using manual or source code ?
You can try Jamod. I never used it, but a colleague of mine used it sometime ago and he was pleased with it.
Try this one:
http://sourceforge.net/projects/jamod/files/jamod/1.2/
By the way, you can use JDGUI to see the sources of any jar file.
FieldKit is paid and open source, and haves support for several languages including Java
jModbus Project
j2mod is a fork of jamod
If you are using Modbus RTU (Serial) Java Communications API is needed; stolen from FieldKit documentation:
The Java Communication API is available from different sources:
Sun Microsystems is publishing versions for the Solaris and the Windows platform at http://java.sun.com/products/javacomm/.
Keane Jarvi publishes a LGPL licensed Linux and cross-platform COMM API at http://www.rxtx.org/.
An excellently performing package for a large variety of platforms is the SerialPort package from Solutions Consulting at http://www.serialio.com. Using this package, poll cycles of less than 10 ms can be achieved!
Perhaps jSSC is a good javax.comm implementation too.
There is another one recent solution modbus4j.
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I'm trying to understand how car audio media works. I have read emmc, and found here .ifs file. By using IFSTool I have extracted all files from .ifs and found Intel .jxe file. OK I have decompiled .jxe file to Oracle .jar by using this tool: https://github.com/spacemeowx2/jxe2jar I have made editions, but is there a way to convert it back to Intel JXE? What tool/software should I use?
According to the documentation for jxe2jar, the reverse conversion can be performed using jar2jxe.
As far as I can tell, that tool is only (legally1) available as a part of various IBM commercial products; e.g. WEME J9.
Unfortunately, the relevant IBM documentation doesn't seem to be publicly available either.
1 - If you google for (say) "jar2jxe download" you may find download links from (ahem) "3rd-party sites". But there are no guarantees that what you will get when you download will be 1) a legal copy, or 2) free from malware. If you need to work on a codebase that was built using IBM proprietary tools, you are strongly advised to get a legal copy of the tools for yourself.
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I'm looking for a free Serial Port library that works with Eclipse Helios, Windows 7 and WindowBuilder. Also, the library shall be easy to install and have a full example of usage. Due to project schedule, I can't afford to spend a lot of time trying to get this environment to cooperate.
I found JCommWin32, but that causes problems with WindowBuilder when an instance of the derived class is invoked (I had no content in the derived class, only overloaded "onRead" which was an empty method).
According to many sources on the Web, Sun dropped serial port support for Windows.
Thanks.
Another popular library is RXTX. It is not perfect, but usable.
PS. WindowBuilder vs. Serial Port Library... Are you mixed UI with serial port handling?
I have decided to use the Windows native API for Serial Port.
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I am looking for an open source audio library similar to BASS from un4seen (http://www.un4seen.com/) to be used in Java applications. Could someone point me to a similar project?
If you don't mind using native libraries, OpenAL has at least these two Java wrappers:
JOAL
LWJGL
I have yet to try it myself, but it feels pretty solid as LWJGL, which many games are based on, has chosen to use it.
Try Beads: http://www.beadsproject.net. Available as jar, processing library or Eclipse project.
How about JSyn ? According to their website, they will release the source code soon.
Another alternative is FMJ. I actually think this is better than the JSyn which I specified above.
Check out jAudio as well.
JSyn, a modular audio synthesizer, was just released as open source on GitHub under the Apache License V2.
https://github.com/philburk/jsyn
As of 2015
FMJ and JAudio are pretty out of date.
JSyn and Beads are good to go.
of the two, JSyn is more popular in Google, but beads has a seemingly more active community.
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I'm wondering if I can access to a Posix Message Queue in Java as I have an application that can't be modified and uses a message queue to talk to other processes.
Is there any api or package that do that?
I know that I can use JNI but I need to do this ASAP so no time to develop that.
Regards.
A bit of Googling found Posix for Java.
Take a look at JNA at GitHub (latest JavaDoc). Quoting the project's description:
JNA provides Java programs easy access
to native shared libraries (DLLs on
Windows) without writing anything but
Java code—no JNI or native code is
required. This functionality is
comparable to Windows' Platform/Invoke
and Python's ctypes. Access is dynamic
at runtime without code generation.
Several projects are using it, including IntelliJ IDEA, Cassandra, and Netbeans.
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Is there any good library for reading / writing DBF files in java or any other language ?
You might give this library a try:
http://dans-dbf-lib.sourceforge.net/
It is open source (GPL) and pure Java.
Its easy to get to via OleDB provider, such as via .Net, Visual Foxpro would obviously be able to read it natively.
A quick google for dbase and jdbc brought back a number of links for an xbase jdbc driver called StelsDBF. Can't say I've used it or know more than a quick google, but that would be my Java answer.
An alternative Java solution would be to set up an ODBC data source for dbase and then use the JdbcOdbc bridge
I've used the JDBC driver from HXTT. It is type-4 (pure java) and worked well. My experience with the JdbcOdbc bridge for the same task was quite poor but that may have changed in newer releases. HXTT's driver is a commercial product.
"any other language"? like in Python, maybe?
in Python I'm using this one: dbfpy. (not to be confused with pydbf.)
very usable indeed.