android studio中的标识符或类型预期错误

Question

开发一个chalisa应用程序，在此枚举中出现错误

public static enum AdState
      {
        static;
        {
          PROCESSING = new AdState("PROCESSING", 1);
          READY = new AdState("READY", 2);
          AdState[] arrayOfAdState = new AdState[3];
          arrayOfAdState[0] = UN_INITIALIZED;
          arrayOfAdState[1] = PROCESSING;
          arrayOfAdState[2] = READY;
          $VALUES = arrayOfAdState;
        }
      }