Java 空白扫描仪下一行使用输入，如果没有输入，则跳过该行

问题：使用扫描仪（sc）从用户处获取输入，如果我没有使用空白的sc.nextLine（），则将跳过上一行。如果我使用这个空白火，变量永远不会被收集起来供以后使用

System.out.println("Please enter the Airline name: ");
    String airName = sc.nextLine();
    sc.nextLine(); <--------- 
    System.out.println("Please enter the Airline code: ");
    String airCode = sc.nextLine();
    System.out.println("Please enter the Delta Aircraft: ");
    String airCraft = sc.nextLine();
    System.out.println("Please enter the first class seat capacity: ");
    int firstClass = sc.nextInt();
    System.out.println("Please enter the business class seat capacity: ");
    int busiClass = sc.nextInt();
    System.out.println("Please enter the economy class seat capacity: ");
    int econClass = sc.nextInt();
    System.out.println("Airline name: " + airName);
    System.out.println("Airline code: " + airCode);
    System.out.println("Delta Aircraft: " + airCraft);
    //Splitting the first word from the rest of the string
    String arr[] = airCraft.split(" ", 2);
    String firstWord = arr[0];
    System.out.println(firstWord + " first class seat capacity: " + firstClass);
    System.out.println(firstWord + " business class seat capacity: " + busiClass);
    System.out.println(firstWord + " economy class seat capacity: " + econClass);
    //Airline object
    A8AirlineAircraftData airline = new A8AirlineAircraftData(airName, airCode, airCraft, firstClass, busiClass, econClass);
    System.out.println(airName + " successfully added. Press Enter to continue.");
    sc.nextLine();//Press Enter to continue
    sc.nextLine();   
    //A8MainMenu.mainMenu(sc); //return to main menu after Enter. 
    return airline;

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在我开始扫描之前，我不得不放置一个空白的sc.nextLine

 sc.nextLine();
    System.out.println("Please enter the Airline name:");
    String airName = sc.nextLine();

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您可能必须引用此线程。我试过，我试过用空白的火。

 sc.nextLine();
    System.out.println("Please enter the Airline name:");
    String airName = sc.nextLine();