how to call java function from c++?
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Hello all how can i call java function from c++ application ( not using cmd methods.. ) Thanks
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Answer:
As an example, check http://www.inonit.com/cygwin/jni/invocationApi/c.html. It shows a sample procedure to create a JVM and invoke a method. If the JVM already exists; e.g. your C program is invoked by the Java program (callback situation), you can cache the JNIEnv* pointer. As an advice, be careful caching pointers to the JVM from C/C++, there are some semantics involved as to what you can cache and it could be invoked later on. For that, as Brian Agnew pointed out, check the JNI reference.
user63898 at Stack Overflow Visit the source
Other answers
Check out the http://java.sun.com/docs/books/jni/html/invoke.html. This will allow you to embed a JVM within your C (or C++) application. Note that various easier mechanisms exist to facilitate calling C/C++ from Java (e.g. https://jna.dev.java.net/). It may be worth considering inverting your problem such that you can call from Java (I understand this may well not be possible for your particular application, however)
Brian Agnew
dirkgently
Yuval Adam
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