How to return int array from Java to JNI

Question

I have to call a Java method from JNI. This Java method returns int array (int[] simpleMethod()). How to call this from JNI to get the array as a return value? I know how to do this when method returns void/String/int/etc but couldn't find anything with arrays. I have some ideas how to work around this but maybe there is simple answer.

Edward Thomson · Accepted Answer · 2011-12-02 18:10:35Z

25

Use CallObjectMethod. For example:

jmethodID myMethod = (*env)->GetMethodID(myClass, "myMethod", "()[I");
jintArray retval = (jintArray) (*env)->CallObjectMethod(myObject, myMethod);

answered Dec 2, 2011 at 18:10

Edward Thomson

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