Android developer

Step one : Return String from your code jstring Java_com_manoj_hellojni_HelloJni_stringFromJNI(JNIEnv* env,         jobject thiz) {     return (*env)->NewStringUTF(env, "stringFromJNI !"); } Step Two : Return integer from your code Java_com_manoj_hellojni_HelloJni_getTwoNumMul(JNIEnv *env, jobject obj,         jint first, jint second) {      jint mul = first*second;     return mul; }

Java Code to Call Native Method step one : Load SystemLib:      static {         System.loadLibrary("manojsamplelibrary");     }   Step Two:    Call below in your onCreate Method     int size =25;         int arr[] = new int[size];         for (int i = 0; i < size; i++) {             arr[i] = i+10;            // Log.i("***", ""+arr[i]);         }         int sum = getHelloSum(arr,size); Step Three:  Declare native getHelloSum Method   public native int  getHelloSum(int[] val,int size);  Step Four:   Write hello-jni.c Java_com_manoj_hellojni_HelloJni_getHelloSum(JNIEnv *env, jobject obj,   ...