Question

以下是我在程序中使用的方法的代码

private static void findRoom(String[] hotel) {
    Scanner sc = new Scanner(System.in);
    System.out.println("Press Q to exit program and W to go back to menu");
    System.out.println("Enter name of customer that needs to be found");
    String name = sc.nextLine();
    if (name.equalsIgnoreCase("q")){
        System.exit(0);
    }else if(name.equalsIgnoreCase("w")){
        return;
    }
    boolean found = false;
    for (int i = 1; i < hotel.length; i++) {
        if (hotel[i].equalsIgnoreCase(name)) {
            System.out.println("Room number of " + name + " is " + i);
            found = true;
            break;
        }
    }
    if (found == false) {
        System.out.println("Such a customer does not exist. Please enter valid name");
    }
}

在第8行，我想要做的是如果用户输入字母“w”或“W”，那么程序应退出方法并返回主方法。但是，而不是返回我的程序所做的是重新启动方法

以下是控制台上的内容：

按Q退出程序，按W返回菜单输入需要找到的客户名称 w ^ 按Q退出程序，按W返回菜单输入需要找到的客户名称 w ^ 按Q退出程序，按W返回菜单输入需要找到的客户名称

像这样它永远运行

如何让程序返回main方法？

以下是主要方法

public static void main(String[] args) throws IOException {
    String roomName = null;
    int roomNum = 0;
    Scanner sc = new Scanner(System.in);
    String[] hotel = new String[11];
    initialise(hotel);
    System.out.println("Select option: ");
    System.out.println("E: Display Empty rooms");
    System.out.println("D: Delete customer from room");
    System.out.println("F: Find room from customer name");
    System.out
            .println("S: Store program array data into a plain text file");
    System.out
            .println("L: Load program data back from the file into the array");
    System.out.println("O: View rooms Ordered alphabetically by name.");
    System.out.println("Q : Exit program");
    String input = sc.next();
    while (true) {
        if ((input.equals("Q")) || (input.equals("q"))) {
            System.exit(0);
        }
        if ((input.equals("E")) || (input.equals("e"))) {
            displayEmpty(hotel);
        }
        if ((input.equals("D")) || (input.equals("d"))) {
            deleteCustomer(hotel);
        }
        if ((input.equals("F")) || (input.equals("f"))) {
            findRoom(hotel);
        }
        if ((input.equals("S")) || (input.equals("s"))) {
            storeArray(hotel);
        }
        if ((input.equals("L")) || (input.equals("l"))) {
            loadArray(hotel);
        }
        if ((input.equals("O")) || (input.equals("o"))) {
            hotel = sortArray(hotel);
            veiwRooms(hotel);
        }
        if ((input.equals("A")) || (input.equals("a"))) {
            addCustomer(hotel, roomNum, roomName);
        }
        if ((input.equals("V")) || (input.equals("v"))) {
            veiwRooms(hotel);
        }
    }
}

好的，我找到了解决方案。更改while（true）语句的位置

程序不会返回主方法

0 个答案: