I want to get a returned String from JNI, but I don't know how to do it, my code are follows:
//MyNative.java
public class MyNative{
 public String test1(String s){
   return test11(s);
 }
 private native String test11(String s);
  static{
   System.loadLibrary( "MyNative" );
  }
 public static void main( String[] args ){
    MyNative obj = new MyNative();
    String c=obj.test1("abc");
    System.out.println("--"+c);
   }
}

//MyNative.h
/* DO NOT EDIT THIS FILE - it is machine generated */
#include <jni.h>
/* Header for class MyNative */
#ifndef _Included_MyNative
#define _Included_MyNative
#ifdef __cplusplus
extern "C" {
#endif
/*
 * Class: MyNative
 * Method: test11
 * Signature: (Ljava/lang/String;)Ljava/lang/String;
 */
JNIEXPORT jstring JNICALL Java_MyNative_test11
  (JNIEnv *, jobject, jstring);

#ifdef __cplusplus
}
#endif
#endif

//MyNative.c
#include <stdio.h>
#include "MyNative.h"
JNIEXPORT jstring JNICALL Java_MyNative_test11
  (JNIEnv *env, jobject obj, jstring s){
   //How to realize return String to Java???,such as return a string "hello world",how to realize this function,please give example code.
}

Thanks in advance!

return (*env)-> NewStringUTF(env,"Hello World");