Question

我希望界面在完成命令后返回“输入命令”菜单（除非用户输入“退出”），但它会一遍又一遍地重复该命令的相同界面。例如，当用户输入“注册”时，系统应询问姓名，然后是电话号码，然后是电子邮件地址，然后说已创建了工作人员（给定用户输入正确的输入类型）。然后系统应该要求另一个命令，但它会询问姓名，电话号码和电子邮件地址，并将注册另一名工作人员。请帮帮忙？

public static void main(String args[]){
        RoomBookSystem rbs = new RoomBookSystem();

        //add rooms to the system
        Room room1=new Room();
        Room room2=new Room();
        Room room3=new Room();
        Room room4=new Room();

        room1.setName("1");
        room1.setCapacity(247);
        room1.setEquipment("Projector");;
        room1.setID(2);

        room2.setName("2");
        room2.setCapacity(18);
        room2.setEquipment("Waffle maker, television");
        room2.setID(2);

        room3.setName("3");
        room3.setCapacity(10);
        room3.setEquipment("Television");
        room3.setID(3);

        room4.setName("4");
        room4.setCapacity(12);
        room4.setEquipment("Piano");
        room1.setID(4);

        rbs.addRoom(room1);
        rbs.addRoom(room2);
        rbs.addRoom(room3);
        rbs.addRoom(room4);

        //adds staff to the system
        Staff kai = new Staff();
        Staff sehun = new Staff();
        Staff xiumin = new Staff();
        Staff chen = new Staff();

        kai.setName("Kai");
        kai.setPhoneNumber("123456789");
        kai.setEmailAddress("kai@exo.com");

        sehun.setName("Sehun");
        sehun.setPhoneNumber("6758302");
        sehun.setEmailAddress("yehet@exo.com");

        xiumin.setName("Xiumin");
        xiumin.setPhoneNumber("90");
        xiumin.setEmailAddress("xiurista@exo.com");


        chen.setName("Chen");
        chen.setPhoneNumber("609090900");
        chen.setEmailAddress("chensingmachine@exo.com");

        rbs.registerStaff(kai);
        rbs.registerStaff(xiumin);
        rbs.registerStaff(sehun);
        rbs.registerStaff(chen);


        //Starts the room booking interface
         System.out.println("*************************************************");
        System.out.println("Welcome to the room booking system!");
        System.out.println("*************************************************");
        System.out.println("The following rooms are available: ");
        rbs.printRooms();   
        System.out.println("-------------------------------------------------");
        System.out.println("Enter a command: (register, book, rooms, print, cancel, exit)");


        Scanner scan = new Scanner(System.in);
        String userCommand = scan.nextLine();
        //while(userCommand!="exit"){
        while(userCommand=="register"){

            System.out.println("enter your name: ");
            Staff newStaff = new Staff();
            String name = scan.nextLine();
            newStaff.setName(name);

            System.out.println("Enter your email address: ");
            String emailAddress = scan.nextLine();
            newStaff.setEmailAddress(emailAddress);

            System.out.println("Enter your phone number");
            String phoneNumber=scan.nextLine();
            newStaff.setPhoneNumber(phoneNumber);

            rbs.registerStaff(newStaff);

            System.out.println("Staff member: "+name+", "+emailAddress+", "+phoneNumber+" has been registered");


        }  if(userCommand=="book"){
            System.out.println("Booking a new meeting: ");
            System.out.println("Enter staff name");

            String staffName = scan.nextLine();

            if(rbs.isRegistered(staffName)){
            Staff staffBooker = new Staff();
                for(int i =0; i<rbs.currentStaff.length;i++){
                    if(rbs.currentStaff[i].getName()==staffName){
                        staffBooker=rbs.currentStaff[i];
                    }

                Room newRoom = new Room();
                System.out.println("Enter a room ID: ");
                int roomID = scan.nextInt();

                System.out.println("Enter a month: ");
                int month= scan.nextInt();

                System.out.println("Enter day: ");
                int day = scan.nextInt();

                System.out.println("Enter starting hour: ");
                int startingHour=scan.nextInt();

                System.out.println("Enter duration: ");
                int duration = scan.nextInt();  

                newRoom.setID(roomID);

                TimeInterval newTimeInterval = new TimeInterval(startingHour,day,month,duration);

                Meeting newMeeting = new Meeting(staffBooker, newTimeInterval, newRoom);

                rbs.bookMeeting(newMeeting);

                }
            }

        } else if(userCommand=="rooms"){
            Room newRoom = new Room();
            System.out.println("Add a new room");
            System.out.println("Enter room ID: ");
            int roomID = scan.nextInt();

            System.out.println("Enter room capacity: ");
            int roomCapacity = scan.nextInt();

            System.out.println("Enter equipment available in room: ");
           String equipment = scan.nextLine();

            newRoom.setID(roomID);
            newRoom.setCapacity(roomCapacity);
            newRoom.setEquipment(equipment);

            rbs.addRoom(newRoom);

        } else if(userCommand=="print"){
            rbs.printRooms();
            rbs.printMeeting();
            rbs.printStaff();

                scan.close();
                System.out.println("Goodbye");
                System.exit(0);


    }

}

Answer 1

请你把（usercomman == register）更改为if语句并试一试吗？

程序循环它不应该

1 个答案: