Apakah kepentingan kaedah accumulate() dalam Java?

public JSONObject accumulate(java.lang.String key, java.lang.Object value) throws JSONException

import org.json.*;
public class JSONAccumulateMethodTest {
   public static void main(String[] args) throws JSONException {
      JSONObject jsonObj = new JSONObject();
      jsonObj.accumulate("Technology", "Java");
      jsonObj.accumulate("Technology", "Python");
      jsonObj.accumulate("Technology", "Spark");
      jsonObj.accumulate("Technology", "Selenium");
      jsonObj.accumulate("Technology", ".Net");
      System.out.println(jsonObj.toString(3));
   }
}

{"Technology": [
   "Java",
   "Python",
   "Spark",
   "Selenium",
   ".Net"
]}