java - 名称 'flight_Num' 必须与模式 '^[a-z][a-zA-Z0-9]*$' 匹配

Question

当我在程序上运行 checkstyle 时，我不断收到此错误:

    NonRefundable.java:20:28: Name 'flight_Num' must match pattern '^[a-z][a-zA-Z0-9]*$'.

我不确定需要做什么来纠正这个问题。以下是针对此特定错误的注释:

/** Comments.
  *
  * @param flight_Num the flight number.
  * @param trip_Data the information stored in the Itinerary object.
  * @param base_Fare the double representing the initial cost of the trip.
  * @param fare_AdjustmentFactor the number factored into the baseFare and 
            discountFactor used to calculate totalFare.
  * @param discount_Factor the number factored into baseFare and 
  *         fare_AdjustmentFactor to calculate totalFare.
  */
  NonRefundable(String flight_Num, Itinerary trip_Data, double base_Fare,
            double fare_AdjustmentFactor, double discount_Factor) {

     super(flight_Num, trip_Data, base_Fare, fare_AdjustmentFactor);
     this.discountFactor = discount_Factor;
  }

Answer 1

Name 'flight_Num' must match pattern '^[a-z][a-zA-Z0-9]*$'

表示flight_Num中不允许使用_字符。