瓶子计数程序，switch语句inquery，查找最大数量
瓶子计数程序，switch语句inquery，查找最大数量
提问于 2012-01-15 07:34:07
我的程序记录了4个房间收集的瓶子数量。我是C#的初学者，但我以前做过java。
我不会使用LINQ，我不会使用数组。只有Switch语句(对不起，我知道它的效率很低)
我的程序必须记录用户输入的瓶子数量，当用户键入“退出”时，程序将显示所有房间的瓶子数量，并确定瓶子最多的房间为获胜者。
我被这个switch语句卡住了，我找不到一种方法来初始化我的房间(room1，room2，room3，room4)，它说变量room1-4没有赋值。我应该能够通过使用开关不断地将瓶子添加到房间中。
当我键入quit时，程序会列出房间收集的所有瓶子，并找到瓶子最多的房间。
感谢您的时间，我感谢这个社区对我的帮助。
namespace BottleDrive1
{
class Program
{
static void Main(string[] args)
{//Initialize 4 rooms.
int room1 = 0;
int room2 = 0;
int room3 = 0;
int room4 = 0;
//Start of while loop to ask what room your adding into.
while (true)
{
Console.Write("Enter the room you're in: ");
//If user enters quit at anytime, the code will jump out of while statement and enter for loop below
string quit = Console.ReadLine();
if (quit == "quit")
//Break statement allows quit to jump out of loop
break;}}
private void SetRoom(int room, int value)
{
switch (room)
{
case 1:
room1 = value;
break;
case 2:
room2 = value;
break;
case 3:
room3 = value;
break;
case 4:
room4 = value;
break;
}
}
public int GetRoom(int room)
{
int count = int.Parse(Console.ReadLine());
switch (room)
{
case 1:
room1 += count;
break;
case 2:
room2 += count;
case 3:
room3 += count;
break;
case 4:
room4 += count;
break;
}
}
}
//This for statement lists the 4 rooms and their bottle count when the user has entered quit. An alternative to below
/*for (int i = 0; i < rooms.Length; ++i)
Console.WriteLine("Bottles collected in room {0} = {1}", i + 1, rooms[i]);*/
/* int maxValue = 0;//initiates the winner, contructor starts at 0
int maxRoomNumber = 0;//initiates the room number that wins
for (int i = 0; i < room[i].Length; ++i)//This loop goes through the array of rooms (4)
{
if (room[i] > maxValue)//Makes sure that the maxValue is picked in the array
{//Looking for room number for the
maxValue = room[i];
maxRoomNumber = i + 1;
}//Writes the bottles collected by the different rooms
Console.WriteLine("Bottles collected in room {0} = {1}", i + 1, rooms[i]);
}
//Outputs winner
Console.WriteLine("And the Winner is room " + maxRoomNumber + "!!!");
*/
}程序的最后一部分是我试图找到最大的数字，因为我使用了一个数组开始。我不能使用数组。
回答 2
Stack Overflow用户
回答已采纳
发布于 2012-01-15 11:01:26
下面是一个使用Class来保存每个房间信息的示例。使用类的原因是，如果您的程序将来需要更改以收集更多信息，则不必跟踪另一个数组，只需向该类添加属性即可。
单个房间现在保存在列表中，而不是数组中，只是为了显示不同的构造。
下面是新的Room类：
public class Room
{
public int Number { get; set; }
public int BottleCount { get; set; }
public Room(int wNumber)
{
Number = wNumber;
}
}这是程序的新版本。请注意，添加了对最终用户输入的值的额外检查，以防止在尝试获取当前房间或将用户输入的值解析为int时出现异常：
static void Main(string[] args)
{
const int MAX_ROOMS = 4;
var cRooms = new System.Collections.Generic.List<Room>();
for (int nI = 0; nI < MAX_ROOMS; nI++)
{
// The room number is 1 to 4
cRooms.Add(new Room(nI + 1));
}
// Initializes the room that wins
//Start of while loop to ask what room your adding into.
while (true)
{
Console.Write("Enter the room you're in: ");
//If user enters quit at anytime, the code will jump out of while statement and enter for loop below
string roomNumber = Console.ReadLine();
if (roomNumber == "quit")
{
//Break statement allows quit to jump out of loop
break;
}
int room = 0;
if (int.TryParse(roomNumber, out room) && (room < MAX_ROOMS) && (room >= 0)) {
Room currentRoom;
currentRoom = cRooms[room];
Console.Write("Bottles collected in room {0}: ", currentRoom.Number);
int wBottleCount = 0;
if (int.TryParse(Console.ReadLine(), out wBottleCount) && (wBottleCount >= 0))
{
// This line adds the count of bottles and records it so you can continuously count the bottles collected.
currentRoom.BottleCount += wBottleCount;
}
else
{
Console.WriteLine("Invalid bottle count; value must be greater than 0");
}
}
else
{
Console.WriteLine("Invalid room number; value must be between 1 and " + MAX_ROOMS.ToString());
}
}
Room maxRoom = null;
foreach (Room currentRoom in cRooms) //This loop goes through the array of rooms (4)
{
// This assumes that the bottle count can never be decreased in a room
if ((maxRoom == null) || (maxRoom.BottleCount < currentRoom.BottleCount))
{
maxRoom = currentRoom;
}
Console.WriteLine("Bottles collected in room {0} = {1}", currentRoom.Number, currentRoom.BottleCount);
}
//Outputs winner
Console.WriteLine("And the Winner is room " + maxRoom.Number + "!!!");
}Stack Overflow用户
发布于 2012-01-15 07:51:25
只需将int声明移到Main方法之上，如下所示：
class Program
{
int room1 = 0;
....
static void Main(string[] args)
{
....
}
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/8866304
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