java - 无法对基本类型 int 调用 equals(String)

Question

我有一个包含航类号的文本文件，我的目标是让此方法搜索该文本文件，并打印出包含“航类号”的所有行。

public static void print_flight(int rcount,int[]reservation_code,int[]fl_number,String[]last_name,String[]first_name,String[]seat_type,double[]seat_cost)
{
     int i, total=0;

     String search_flight = "";
     String output = "Enter the Flight Number you are searching for";
     search_flight = JOptionPane.showInputDialog(null,
                                               output, " ",
                                               JOptionPane.QUESTION_MESSAGE);

     for (i = 0; i <=rcount; ++i) {
        //CHECK flight number

          if(fl_number[i].equals(search_flight))//ERROR IS HERE
             {
                 total+=fl_number[i]; //not sure if that is right
                 System.out.println(reservation_code[i]+" "+fl_number[i]+" "+last_name[i]+" "+first_name[i]+" "+seat_type[i]+" "+seat_cost[i]);
             }

     }
}

Answer 1

使用Integer.parseInt将其转换为 int 值，然后使用 ==

比较两个 int 值

          int flight_number = Integer.parseInt(search_flight); //convert to int
          if(fl_number[i] == flight_number)//compare two ints