import java.util.List;

 import net.sf.json.JSONArray;

 import net.sf.json.JSONObject;

 public class JsonUtil {

      public static Object getObjectFromJsonString(String jsonString, Class<?> pojoCalss) {

          JSONObject jsonObject = JSONObject.fromObject(jsonString);

          Object pojo = JSONObject.toBean(jsonObject, pojoCalss);

          return pojo;

      }

      public static String getJsonStringFromObject(Object javaObj) {

          JSONObject json = JSONObject.fromObject(javaObj);

          return json.toString();

      }  

      public static Object[] getObjectArrayFromJsonString(String jsonString) {

          JSONArray jsonArray = JSONArray.fromObject(jsonString);

          return jsonArray.toArray();

      }  

      public static String getJsonStringFromList(List<?> list) {

          JSONArray jsonArray = JSONArray.fromObject(list);

          return jsonArray.toString();

      } 

 }