gistfile1.cpp

// Hello world isn't hard.

jclass javaLangSystem = env->FindClass("java/lang/System");
jfieldID javaLangSystemOut = env->GetStaticFieldID(javaLangSystem, "out", "Ljava/io/PrintStream;");
jobject out = env->GetStaticObjectField(javaLangSystem, javaLangSystemOut);
jmethodID javaIoPrintStreamPrintln = env->GetMethodID(env->GetObjectClass(out), "println", "(Ljava/lang/String;)V");
jstring helloJava = env->NewStringUTF("Hello Java!");
env->CallVoidMethod(out, javaIoPrintStreamPrintln, helloJava);