How do I get (in c) a method return value from the java side?

Question

I have a class in the Java side, that I pass as object to the c side.
in the Java class I have the following method:
public String getPgmId()
return pgmId;
where pgmId is a private string.
I nees to get the value of pgmId, hopefully by using the getPgmId method.
what I have until now is:
JNIEXPORT jint JNICALL Java_JavaAPI_StartProgram (JNIEnv *env, jobject obj, jobject obj2)
jmethodID methID;
jstring jstr;
const char *str;
/* Get a reference to obj2 class */
jclass cls = (*env)->GetObjectClass (env, obj2);
if (cls == NULL){
return;
methID = (*env)->GetMethodID (env, cls, "getPgmId", "()Ljava/lang/String;");
}//StartProgram
my question is how from this point, can I get the return value of the method getPgmId().
tnx

Answer 1

jString CallStringMethod(env, obj2, methID);