jsonArray初始化

import  java.text.ParseException;
import  org.json.JSONArray;
import  org.json.JSONObject;
public  class  TestJsonArray {
 public  static  void  main(String[] args)  throws  ParseException {
  String jsonStr =  "[{\"a\":123, \"b\":\"hello\", \"x\":[{\"inner\":\"Inner JSONObject\"}]}]" ;

  JSONArray jsonArray =  new  JSONArray(jsonStr);
  JSONObject jsonObj = jsonArray.getJSONObject( 0 );
  System.out.println(jsonObj);

  int  a = jsonObj.getInt( "a" );
  String b = jsonObj.getString( "b" );
  JSONArray jsonArrayX = jsonObj.getJSONArray( "x" );

  System.out.println(a);
  System.out.println(b);
  System.out.println(jsonArrayX);
  System.out.println(jsonArrayX.getJSONObject( 0 ).getString( "inner" ));
 }
}