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Call c Program With Java?
I have a project in Java, but would like to use FFTW ( a C implementation of the fast fourier transform). (Download page here: http://www.fftw.org/download.html) Its been years since I messed with C or C++. The download page contains a section for calling FFTW from other languages, including java.
The download for calling FFTW from java contains some java source files, as well as a .h and a .c that corresponds to each of the class files in java (or the other way around).
The download of the actual FFTW library, contains a .dll, a .def, and a .h file (and a .f, no idea what that is).
I am using MyEclipse as my ide (just installed the c/c++ capabilities for eclipse), on a 32 bit windows vista machine.
I've never done anything with jni or any of that. I tried googling how to get all this to work together, but haven't quite figured it out yet. How do I get all of this to work together so I can call it from java, and how should I structure my source files with all the c stuff in it?
2 Answers
- deonejuanLv 71 decade agoFavorite Answer
If you had NetBeans, I could help. Maybe MyEclipse (why not Eclipse? BTW) is like NetBeans. You start a Project and to that Project you add a Library and/or .jar and/or folder.
I used your link. Downloaded the first java Wrappers from Jeff (MIT, BTW), jfftw-1.2.zip. I would unzip a copy of that and start reading the html docs.
Then, add the .zip to the Project. Inside the jar is the API docs -- the method and their parameters, NetBeans can use the zipped file structure and provide code hinting from those docs.
If you get stuck. I know of two other pure java implementations, but what you are doing will be better. What the zipped download from Jeff looks like is an applet, not sure, didn't dig deep enough.
- ?Lv 45 years ago
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