我在这个过程中变得痛苦和怨恨。我的导师没有回复我的电话超过一周。这是我的最后一次尝试。除了两件事，我的所有代码都工作了。 1.我可以在我的阵列中搜索，但我只得到第一个正确的答案，我希望所有的命中都回到控制台。 2.我的冒泡排序出现异常错误，我不知道自己在做什么。我可以冒泡排序一维填充整数的数组。
我的问题是我无法处理从一维到多维的数组转换。我不明白选择'for（int i = 0; i＆lt; bottleCount（）; i ++）'而不是'foreach（瓶装瓶装）'的含义。在我看来，如果我想加钱，我会更好地与第一个。但是，当我想从数组中得到一些答案时，foreach不是使用的工具。有时候bottles.xyz正在工作，而其他时间瓶子.xyz正在工作。
请理解我是一个菜鸟，大多数都是通过阅读书籍自学。我正在参加一个网络课程，以了解更多，但我的老师没有帮助，当我试图理解时，我很沮丧。我相信我非常接近，但我需要一个愚蠢的帮助，不需要我理解更好的点。老师表示我应该使用ToString以某种方式获取我的搜索并冒泡我的sodacrate。我更倾向于真正学习如何正确地将我的套件与我的阵列一起使用。如果做不到这一点，我可以接受完全无法解决的ToString解决方案。
我将所有工作代码放在底部，然后从Run（）中删除了我的菜单，以提高测试效率。如果有人可以帮助我，我将不胜感激，否则我将继续我的工作，恢复我的菜单。我想了解和学习。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace Sodacrate
{
//Soda - contains the properties for the bottles that go in to the crate
class Soda : IComparable<Soda>
{
string drinkName;
string drinkType;
int drinkPrice;
int productCode;
//Construct for the beverage
public Soda(string _drinkName, string _drinkType, int _drinkPrice, int _productCode)
{
drinkName = _drinkName;
drinkType = _drinkType;
drinkPrice = _drinkPrice;
productCode = _productCode;
}
//Property for the drink name e.g. Coca Cola, Ramlösa or Pripps lättöl
public string Drink_name
{
get { return drinkName; }
set { drinkName = value; }
}
//Property for the drink type e.g. Soda, fizzy water or beer
public string Drink_type
{
get { return drinkType; }
set { drinkType = value; }
}
//Property for the drink price in SEK
public int Drink_price
{
get { return drinkPrice; }
set { drinkPrice = value; }
}
//Property for the product code e.g. 1, 2 or ...
public int Product_code
{
get { return productCode; }
set { productCode = value; }
}
//Override for ToString to get text instead of info about the object
public override string ToString()
{
return string.Format("{0} is a {1} costs {2} productcode {3} ", drinkName, drinkType, drinkPrice, productCode);
//return string.Format("{0,0} Type {1,-16} Price {2,-10} Code {3, -5} ", drinkName, drinkType, drinkPrice, productCode);
}
//Compare to solve my issues with sorting
public int CompareTo(Soda other)
{
if (ReferenceEquals(other, null))
return 1;
return drinkName.CompareTo(other.drinkName);
}
}
static class Screen
{
// Screen - Generic methods for handling in- and output ======================================= >
// Methods for screen handling in this object are:
//
// cls() Clear screen
// cup(row, col) Positions the curser to a position on the console
// inKey() Reads one pressed key (Returned value is : ConsoleKeyInfo)
// inStr() Handles String
// inInt() Handles Int
// inFloat() Handles Float(Singel)
// meny() Menu system , first invariable is Rubrik and 2 to 6 meny choises
// addSodaMenu() The options for adding bottles
// Clear Screen ------------------------------------------
static public void cls()
{
Console.Clear();
}
// Set Curser Position ----------------------------------
static public void cup(int column, int rad)
{
Console.SetCursorPosition(column, rad);
}
// Key Input --------------------------------------------
static public ConsoleKeyInfo inKey()
{
ConsoleKeyInfo in_key; in_key = Console.ReadKey(); return in_key;
}
// String Input -----------------------------------------
static public string inStr()
{
string in_string; in_string = Console.ReadLine(); return in_string;
}
// Int Input -------------------------------------------
static public int inInt()
{
int int_in; try { int_in = Int32.Parse(Console.ReadLine()); }
catch (FormatException) { Console.WriteLine("Input Error \b"); int_in = 0; }
catch (OverflowException) { Console.WriteLine("Input Owerflow\b"); int_in = 0; }
return int_in;
}
// Float Input -------------------------------------------
static public float inFloat()
{
float float_in; try { float_in = Convert.ToSingle(Console.ReadLine()); }
catch (FormatException) { Console.WriteLine("Input Error \b"); float_in = 0; }
catch (OverflowException) { Console.WriteLine("Input Owerflow\b"); float_in = 0; }
return float_in;
}
// Menu ------------------------------------------------
static public int meny(string rubrik, string m_val1, string m_val2)
{ // Meny med 2 val ---------------------
int menSvar; menyRubrik(rubrik); menyRad(m_val1); menyRad(m_val2); menSvar = menyInm();
return menSvar;
}
static public int meny(string rubrik, string m_val1, string m_val2, string m_val3)
{ // Meny med 3 val ---------------------
int menSvar; menyRubrik(rubrik); menyRad(m_val1); menyRad(m_val2); menyRad(m_val3); menSvar = menyInm();
return menSvar;
}
static public int meny(string rubrik, string m_val1, string m_val2, string m_val3, string m_val4)
{ // Meny med 4 val ---------------------
int menSvar; menyRubrik(rubrik); menyRad(m_val1); menyRad(m_val2); menyRad(m_val3); menyRad(m_val4); menSvar = menyInm();
return menSvar;
}
static public int meny(string rubrik, string m_val1, string m_val2, string m_val3, string m_val4, string m_val5)
{ // Meny med 5 val ---------------------
int menSvar; menyRubrik(rubrik); menyRad(m_val1); menyRad(m_val2); menyRad(m_val3); menyRad(m_val4); menyRad(m_val5); menSvar = menyInm();
return menSvar;
}
static public int meny(string rubrik, string m_val1, string m_val2, string m_val3, string m_val4, string m_val5, string m_val6)
{ // Meny med 6 val ---------------------
int menSvar; menyRubrik(rubrik); menyRad(m_val1); menyRad(m_val2); menyRad(m_val3); menyRad(m_val4); menyRad(m_val5); ; menyRad(m_val6); menSvar = menyInm();
return menSvar;
}
static void menyRubrik(string rubrik)
{ // Meny rubrik --------
cls(); Console.WriteLine("\n\t {0}\n----------------------------------------------------\n", rubrik);
}
static void menyRad(string menyVal)
{ // Meny rad --------
Console.WriteLine("\t {0}", menyVal);
}
static int menyInm()
{ // Meny inmating ------
int mVal; Console.Write("\n\t Menyval : "); mVal = inInt(); return mVal;
}
// Menu for adding bottles --------------------------------
static public void addSodaMenu()
{
cls();
Console.WriteLine("\tChoose a beverage please.");
Console.WriteLine("\t1. Coca Cola");
Console.WriteLine("\t2. Champis");
Console.WriteLine("\t3. Grappo");
Console.WriteLine("\t4. Pripps Blå lättöl");
Console.WriteLine("\t5. Spendrups lättöl");
Console.WriteLine("\t6. Ramlösa citron");
Console.WriteLine("\t7. Vichy Nouveu");
Console.WriteLine("\t9. Exit to main menu");
Console.WriteLine("\t--------------------\n");
}
// Screen - Slut <========================================
} // screen <----
class Sodacrate
{
// Sodacrate - Methods for handling arrays and lists of Soda-objects ======================================= >
// Methods for Soda handling in this object are:
//
// cls() Clear screen
//
//
private Soda[] bottles; //Create they array where we store the up to 25 bottles
private int numberOfBottles = 0; //Keep track of the number of bottles in the crate
//Not working
public int find_Soda(string drinkname)
{
//Notes from teatcher **=================start==================**
//You should be able to search for name
//You can use string-methods ToLower() or ToUpper()
//Notes from teatcher **=================end====================**
for (int i = 0; i < bottles.Length; i++)
{
if (bottles[i].Drink_name == drinkname) //My feeble attempts
return i;
}
return -1;
}
//Exception error
public void sort_Sodas()
{
int max = bottles.Length;
//Outer loop for complete [bottles]
for (int i = 1; i < max; i++)
{
//Inner loop for row by row
int nrLeft = max - i;
for (int j = 0; j < (max - i); j++)
{
if (bottles[j].Product_code > bottles[j + 1].Product_code)
{
int temp = bottles[j].Product_code;
bottles[j] = bottles[j + 1];
bottles[j + 1].Product_code = temp;
}
}
}
}
//Exception error
public void sort_Sodas_name()
{
int max = bottles.Length;
//Outer loop for complete [bottles]
for (int i = 1; i < max; i++)
{
//Inner loop for row by row
int nrLeft = max - i;
for (int j = 0; j < (max - i); j++)
{
//Error CS0122 'Soda.drinkName' is inaccessible due to its protection level
if (bottles[j].drinkName > bottles[j + 1].drinkName)
{
//int temp = bottles[j].drinkName;
//bottles[j] = bottles[j + 1];
//bottles[j + 1].drinkName = temp;*/
}
}
}
}
//Search for Product code ony returns the first hit
public int LinearSearch(int key)
{
for (int i = 0; i < bottles.Length; i++)
{
if (bottles[i].Product_code == key)
return i;
}
return -1;
}
//Contains the menu to choose from the crates methods
public void Run()
{
//Quick and dirty add of data. I got this working fine
bottles[0] = new Soda("Coca Cola", "Soda", 5, 1);
bottles[1] = new Soda("Champis", "Soda", 6, 1);
bottles[2] = new Soda("Grappo", "Soda", 4, 1);
bottles[3] = new Soda("Pripps Blå", "beer", 6, 2);
bottles[4] = new Soda("Spendrups", "beer", 6, 2);
bottles[5] = new Soda("Ramlösa", "water", 4, 3);
bottles[6] = new Soda("Loka", "water", 4, 3);
bottles[7] = new Soda("Coca Cola", "Soda", 5, 1);
print_crate(); //Happy with this one I need to shape up the ToString override
Console.WriteLine("\n\tYou have {0} bottles in your crate:\n\n", bottleCount());
Console.WriteLine("\nTotal value of the crate is {0}", calc_total());//Happy as a clam
/*int price = 0; //Causes exception error I lack understanding
foreach(var bottle in bottles)
{
price = price + bottle.Drink_price;
}
*/
//Console.WriteLine("\tThe total value of the crate is {0} SEK.", price);
Screen.inKey();
Screen.cls();
int test = 0;
test = bottles[3].Product_code;//So bottles[i].xyz do some things and bottles.xyz others
Console.WriteLine("Product code {0} is in slot {1}", test, 3);
Screen.inKey();
//This only returns the first product with the asked productcode. How to get all? Also what if I searched for name like Coca Cola instead?
Console.WriteLine("Type 1, 2 or 3");
int prodcode = Screen.inInt();
Console.WriteLine(LinearSearch(prodcode));
Console.WriteLine("Product code {0} is in slot {1}", prodcode, (LinearSearch(prodcode)));
Console.WriteLine(bottles[(LinearSearch(prodcode))]);
Screen.inKey();
//sort_Sodas(); //Causes Exception error I want it to sort on either product code or product name
//print_crate(); //Check if the sort has put two Coca Cola on top.
}
//Print the content of the crate to the console
public void print_crate()
{
foreach (var beverage in bottles)
{
if (beverage != null)
Console.WriteLine(beverage);
}
Console.WriteLine("\n\tYou have {0} bottles in your crate:", bottleCount());
}
//Construct, sets the Sodacrate to hold 25 bottles
public Sodacrate()
{
bottles = new Soda[25];
}
// Count the ammounts of bottles in crate
public int bottleCount()
{
int cnt = numberOfBottles;
// Loop though array to get not empty element
foreach (var beverages in bottles)
{
if (beverages != null)
{
cnt++;
}
}
return cnt;
}
//Calculates the total value of the bottles in the crate
public int calc_total()
{
int temp = 0;
for (int i = 0; i < bottleCount(); i++)
{
temp = temp + (bottles[i].Drink_price);
}
return temp;
}
//Adds bottles in the crate.
public void add_Soda()
{
//I start of with adding 7 bottles to avoid having to add so many bottles testing functions. Remove block before release
bottles[0] = new Soda("Coca Cola", "Soda", 5, 1);
bottles[1] = new Soda("Champis", "Soda", 6, 1);
bottles[2] = new Soda("Grappo", "Soda", 4, 1);
bottles[3] = new Soda("Pripps Blå", "lättöl", 6, 2);
bottles[4] = new Soda("Spendrups", "lättöl", 6, 2);
bottles[5] = new Soda("Ramlösa citron", "mineralvatten", 4, 3);
bottles[6] = new Soda("Vichy Nouveu", "mineralvatten", 4, 3);
//<====================================== End block
int beverageIn = 0;//Creates the menu choice-variable
while (beverageIn != 9)//Exit this menu by typing 9 - This value should be different if we add more bottle types to add.
{
Screen.addSodaMenu();//Calls the menu in the Screen-class
Console.WriteLine("You have {0} bottles in the crate.\n\nChoose :", bottleCount());
Screen.cup(8, 13);
int i = bottleCount();//Keeps track of how many bottles we have in the crate. If the crate is full we get expelled out of this method
if (i == 25)
{ beverageIn = 9; }
else beverageIn = Screen.inInt();//end
switch (beverageIn) //Loop for adding bottles to the crate exit by pressing 9
{
case 1:
i = bottleCount();
bottles[i] = new Soda("Coca Cola", "Soda", 5, 1);
i++;
break;
case 2:
i = bottleCount();
bottles[i] = new Soda("Champis", "Soda", 6, 1);
i++;
break;
case 3:
i = bottleCount();
bottles[i] = new Soda("Grappo", "Soda", 4, 1);
i++;
break;
case 4:
i = bottleCount();
bottles[i] = new Soda("Pripps Blå lättöl", "lättöl", 6, 2);
i++;
break;
case 5:
i = bottleCount();
bottles[i] = new Soda("Spendrups lättöl", "lättöl", 6, 2);
i++;
break;
case 6:
i = bottleCount();
bottles[i] = new Soda("Ramlösa citron", "mineralvatten", 4, 3);
i++;
break;
case 7:
i = bottleCount();
bottles[i] = new Soda("Vichy Nouveu", "mineralvatten", 4, 3);
i++;
break;
case 9:
i = bottleCount();
if (i == 25)
{
Console.WriteLine("\tThe crate is full\n\tGoing back to main menu. Press a key: ");
}
Console.WriteLine("Going back to main menu. Press a key: ");
break;
default://Default will never kick in as I have error handling in Screen.inInt()
Console.WriteLine("Error, pick a number between 1 and 7 or 9 to end.");
break;
}
}
}
// Sodacrate - End <========================================
class Program
{
public static void Main(string[] args)
{
//Creates an object of class Sodacrate named Sodacrate
var Sodacrate = new Sodacrate();
Sodacrate.Run();
Console.Write("Press any key to continue . . . ");
Console.ReadKey(true);
}
}
}
}
答案 0 :(得分：3)
bottles = new Soda[25];
这样做是创建一个可以包含25个苏打项目的数组。你的for循环的问题是你只设置了前8个项目，之后的每个项目都是null，这就是你得到错误的原因。尝试这样的事情：
foreach (var bottle in bottles)
{
if (bottle == null)
{
continue;
}
price = price + bottle.Drink_price;
}
这样做基本上是通过使用continue语句跳过所有为空的瓶值。您也可以使用break，但第一次找到空值时，它将停止处理循环。
再次因为null，你的sort_Sodas()函数应该是这样的。以前你只是在改变价格而不是换瓶子，所以我为你做了修改。
public void sort_Sodas()
{
int max = bottles.Length;
//Outer loop for complete [bottles]
for (int i = 1; i < max; i++)
{
//Inner loop for row by row
int nrLeft = max - i;
for (int j = 0; j < (max - i); j++)
{
var bottle1 = bottles[j];
var bottle2 = bottles[j + 1];
if((bottle1 == null) || (bottle2 == null))
{
continue;
}
if (bottle1.Product_code > bottle2.Product_code)
{
var temp = bottles[j];
bottles[j] = bottles[j + 1];
bottles[j + 1] = temp;
}
}
}
}
现在，我将您在苏打水中的CompareTo方法更改为：
public int CompareTo(Soda other)
{
if (other == null)
{
return 1;
}
return drinkName.CompareTo(other.drinkName);
}
以及实际的sort_Sodas_name()函数：
public void sort_Sodas_name()
{
int max = bottles.Length;
//Outer loop for complete [bottles]
for (int i = 1; i < max; i++)
{
//Inner loop for row by row
int nrLeft = max - i;
for (int j = 0; j < (max - i); j++)
{
var bottle1 = bottles[j];
var bottle2 = bottles[j + 1];
if ((bottle1 == null) || (bottle2 == null))
{
continue;
}
//Error CS0122 'Soda.drinkName' is inaccessible due to its protection level
if (bottle1.Drink_name.CompareTo(bottle2.Drink_name) == 1)
{
var temp = bottles[j];
bottles[j] = bottles[j + 1];
bottles[j + 1] = temp;
}
}
}
}
您在Soda.drinkName上收到无法访问的错误的原因是因为drinkName变量是私有的，所以我将其更改为使用Soda.Drink_name，因为这是您的公共getter和setter，你已经有了。
为了完整性，这里是整个代码，请注意我的Program课程位于顶部，而不是像您一样位于底部：
using System;
namespace Sodacrate
{
class Program
{
static void Main(string[] args)
{
//Creates an object of class Sodacrate named Sodacrate
var Sodacrate = new Sodacrate();
Sodacrate.Run();
Console.Write("Press any key to continue . . . ");
Console.ReadKey(true);
}
}
//Soda - contains the properties for the bottles that go in to the crate
class Soda : IComparable<Soda>
{
string drinkName;
string drinkType;
int drinkPrice;
int productCode;
//Construct for the beverage
public Soda(string _drinkName, string _drinkType, int _drinkPrice, int _productCode)
{
drinkName = _drinkName;
drinkType = _drinkType;
drinkPrice = _drinkPrice;
productCode = _productCode;
}
//Property for the drink name e.g. Coca Cola, Ramlösa or Pripps lättöl
public string Drink_name
{
get { return drinkName; }
set { drinkName = value; }
}
//Property for the drink type e.g. Soda, fizzy water or beer
public string Drink_type
{
get { return drinkType; }
set { drinkType = value; }
}
//Property for the drink price in SEK
public int Drink_price
{
get { return drinkPrice; }
set { drinkPrice = value; }
}
//Property for the product code e.g. 1, 2 or ...
public int Product_code
{
get { return productCode; }
set { productCode = value; }
}
//Override for ToString to get text instead of info about the object
public override string ToString()
{
return string.Format("{0} is a {1} costs {2} productcode {3} ", drinkName, drinkType, drinkPrice, productCode);
//return string.Format("{0,0} Type {1,-16} Price {2,-10} Code {3, -5} ", drinkName, drinkType, drinkPrice, productCode);
}
//Compare to solve my issues with sorting
public int CompareTo(Soda other)
{
if (other == null)
{
return 1;
}
return drinkName.CompareTo(other.drinkName);
}
}
static class Screen
{
// Screen - Generic methods for handling in- and output ======================================= >
// Methods for screen handling in this object are:
//
// cls() Clear screen
// cup(row, col) Positions the curser to a position on the console
// inKey() Reads one pressed key (Returned value is : ConsoleKeyInfo)
// inStr() Handles String
// inInt() Handles Int
// inFloat() Handles Float(Singel)
// meny() Menu system , first invariable is Rubrik and 2 to 6 meny choises
// addSodaMenu() The options for adding bottles
// Clear Screen ------------------------------------------
static public void cls()
{
Console.Clear();
}
// Set Curser Position ----------------------------------
static public void cup(int column, int rad)
{
Console.SetCursorPosition(column, rad);
}
// Key Input --------------------------------------------
static public ConsoleKeyInfo inKey()
{
ConsoleKeyInfo in_key; in_key = Console.ReadKey(); return in_key;
}
// String Input -----------------------------------------
static public string inStr()
{
string in_string; in_string = Console.ReadLine(); return in_string;
}
// Int Input -------------------------------------------
static public int inInt()
{
int int_in; try { int_in = Int32.Parse(Console.ReadLine()); }
catch (FormatException) { Console.WriteLine("Input Error \b"); int_in = 0; }
catch (OverflowException) { Console.WriteLine("Input Owerflow\b"); int_in = 0; }
return int_in;
}
// Float Input -------------------------------------------
static public float inFloat()
{
float float_in; try { float_in = Convert.ToSingle(Console.ReadLine()); }
catch (FormatException) { Console.WriteLine("Input Error \b"); float_in = 0; }
catch (OverflowException) { Console.WriteLine("Input Owerflow\b"); float_in = 0; }
return float_in;
}
// Menu ------------------------------------------------
static public int meny(string rubrik, string m_val1, string m_val2)
{ // Meny med 2 val ---------------------
int menSvar; menyRubrik(rubrik); menyRad(m_val1); menyRad(m_val2); menSvar = menyInm();
return menSvar;
}
static public int meny(string rubrik, string m_val1, string m_val2, string m_val3)
{ // Meny med 3 val ---------------------
int menSvar; menyRubrik(rubrik); menyRad(m_val1); menyRad(m_val2); menyRad(m_val3); menSvar = menyInm();
return menSvar;
}
static public int meny(string rubrik, string m_val1, string m_val2, string m_val3, string m_val4)
{ // Meny med 4 val ---------------------
int menSvar; menyRubrik(rubrik); menyRad(m_val1); menyRad(m_val2); menyRad(m_val3); menyRad(m_val4); menSvar = menyInm();
return menSvar;
}
static public int meny(string rubrik, string m_val1, string m_val2, string m_val3, string m_val4, string m_val5)
{ // Meny med 5 val ---------------------
int menSvar; menyRubrik(rubrik); menyRad(m_val1); menyRad(m_val2); menyRad(m_val3); menyRad(m_val4); menyRad(m_val5); menSvar = menyInm();
return menSvar;
}
static public int meny(string rubrik, string m_val1, string m_val2, string m_val3, string m_val4, string m_val5, string m_val6)
{ // Meny med 6 val ---------------------
int menSvar; menyRubrik(rubrik); menyRad(m_val1); menyRad(m_val2); menyRad(m_val3); menyRad(m_val4); menyRad(m_val5); ; menyRad(m_val6); menSvar = menyInm();
return menSvar;
}
static void menyRubrik(string rubrik)
{ // Meny rubrik --------
cls(); Console.WriteLine("\n\t {0}\n----------------------------------------------------\n", rubrik);
}
static void menyRad(string menyVal)
{ // Meny rad --------
Console.WriteLine("\t {0}", menyVal);
}
static int menyInm()
{ // Meny inmating ------
int mVal; Console.Write("\n\t Menyval : "); mVal = inInt(); return mVal;
}
// Menu for adding bottles --------------------------------
static public void addSodaMenu()
{
cls();
Console.WriteLine("\tChoose a beverage please.");
Console.WriteLine("\t1. Coca Cola");
Console.WriteLine("\t2. Champis");
Console.WriteLine("\t3. Grappo");
Console.WriteLine("\t4. Pripps Blå lättöl");
Console.WriteLine("\t5. Spendrups lättöl");
Console.WriteLine("\t6. Ramlösa citron");
Console.WriteLine("\t7. Vichy Nouveu");
Console.WriteLine("\t9. Exit to main menu");
Console.WriteLine("\t--------------------\n");
}
// Screen - Slut <========================================
} // screen <----
class Sodacrate
{
// Sodacrate - Methods for handling arrays and lists of Soda-objects ======================================= >
// Methods for Soda handling in this object are:
//
// cls() Clear screen
//
//
private Soda[] bottles; //Create they array where we store the up to 25 bottles
private int numberOfBottles = 0; //Keep track of the number of bottles in the crate
//Not working
public int find_Soda(string drinkname)
{
//Notes from teatcher **=================start==================**
//You should be able to search for name
//You can use string-methods ToLower() or ToUpper()
//Notes from teatcher **=================end====================**
for (int i = 0; i < bottles.Length; i++)
{
if (bottles[i].Drink_name == drinkname) //My feeble attempts
return i;
}
return -1;
}
//Exception error
public void sort_Sodas()
{
int max = bottles.Length;
//Outer loop for complete [bottles]
for (int i = 1; i < max; i++)
{
//Inner loop for row by row
int nrLeft = max - i;
for (int j = 0; j < (max - i); j++)
{
var bottle1 = bottles[j];
var bottle2 = bottles[j + 1];
if((bottle1 == null) || (bottle2 == null))
{
continue;
}
if (bottle1.Product_code > bottle2.Product_code)
{
var temp = bottles[j];
bottles[j] = bottles[j + 1];
bottles[j + 1] = temp;
}
}
}
}
//Exception error
public void sort_Sodas_name()
{
//var tempb = bottles.OrderBy(x => x.Drink_name).ToArray();
//bottles = tempb;
int max = bottles.Length;
//Outer loop for complete [bottles]
for (int i = 1; i < max; i++)
{
//Inner loop for row by row
int nrLeft = max - i;
for (int j = 0; j < (max - i); j++)
{
var bottle1 = bottles[j];
var bottle2 = bottles[j + 1];
if ((bottle1 == null) || (bottle2 == null))
{
continue;
}
//Error CS0122 'Soda.drinkName' is inaccessible due to its protection level
if (bottle1.Drink_name.CompareTo(bottle2.Drink_name) == 1)
{
var temp = bottles[j];
bottles[j] = bottles[j + 1];
bottles[j + 1] = temp;
}
}
}
}
//Search for Product code ony returns the first hit
public int LinearSearch(int key)
{
for (int i = 0; i < bottles.Length; i++)
{
if (bottles[i].Product_code == key)
return i;
}
return -1;
}
//Contains the menu to choose from the crates methods
public void Run()
{
//Quick and dirty add of data. I got this working fine
bottles[0] = new Soda("Coca Cola", "Soda", 5, 1);
bottles[1] = new Soda("Champis", "Soda", 6, 1);
bottles[2] = new Soda("Grappo", "Soda", 4, 1);
bottles[3] = new Soda("Pripps Blå", "beer", 6, 2);
bottles[4] = new Soda("Spendrups", "beer", 6, 2);
bottles[5] = new Soda("Ramlösa", "water", 4, 3);
bottles[6] = new Soda("Loka", "water", 4, 3);
bottles[7] = new Soda("Coca Cola", "Soda", 5, 1);
print_crate(); //Happy with this one I need to shape up the ToString override
Console.WriteLine("\n\tYou have {0} bottles in your crate:\n\n", bottleCount());
Console.WriteLine("\nTotal value of the crate is {0}", calc_total());//Happy as a clam
int price = 0; //Causes exception error I lack understanding
foreach (var bottle in bottles)
{
if (bottle == null)
{
continue;
}
price = price + bottle.Drink_price;
}
Console.WriteLine("\tThe total value of the crate is {0} SEK.", price);
Screen.inKey();
Screen.cls();
int test = 0;
test = bottles[3].Product_code;//So bottles[i].xyz do some things and bottles.xyz others
Console.WriteLine("Product code {0} is in slot {1}", test, 3);
Screen.inKey();
//This only returns the first product with the asked productcode. How to get all? Also what if I searched for name like Coca Cola instead?
Console.WriteLine("Type 1, 2 or 3");
int prodcode = Screen.inInt();
Console.WriteLine(LinearSearch(prodcode));
Console.WriteLine("Product code {0} is in slot {1}", prodcode, (LinearSearch(prodcode)));
Console.WriteLine(bottles[(LinearSearch(prodcode))]);
Console.WriteLine("\nbefore sort\n");
Screen.inKey();
print_crate();
Console.WriteLine("\nafter sort\n");
sort_Sodas(); //Causes Exception error I want it to sort on either product code or product name
print_crate(); //Check if the sort has put two Coca Cola on top.
Console.WriteLine("\nafter sort name\n");
sort_Sodas_name();
print_crate(); //Check if the sort has put two Coca Cola on top.
}
//Print the content of the crate to the console
public void print_crate()
{
foreach (var beverage in bottles)
{
if (beverage != null)
Console.WriteLine(beverage);
}
Console.WriteLine("\n\tYou have {0} bottles in your crate:", bottleCount());
}
//Construct, sets the Sodacrate to hold 25 bottles
public Sodacrate()
{
bottles = new Soda[25];
}
// Count the ammounts of bottles in crate
public int bottleCount()
{
int cnt = numberOfBottles;
// Loop though array to get not empty element
foreach (var beverages in bottles)
{
if (beverages != null)
{
cnt++;
}
}
return cnt;
}
//Calculates the total value of the bottles in the crate
public int calc_total()
{
int temp = 0;
for (int i = 0; i < bottleCount(); i++)
{
temp = temp + (bottles[i].Drink_price);
}
return temp;
}
//Adds bottles in the crate.
public void add_Soda()
{
//I start of with adding 7 bottles to avoid having to add so many bottles testing functions. Remove block before release
bottles[0] = new Soda("Coca Cola", "Soda", 5, 1);
bottles[1] = new Soda("Champis", "Soda", 6, 1);
bottles[2] = new Soda("Grappo", "Soda", 4, 1);
bottles[3] = new Soda("Pripps Blå", "lättöl", 6, 2);
bottles[4] = new Soda("Spendrups", "lättöl", 6, 2);
bottles[5] = new Soda("Ramlösa citron", "mineralvatten", 4, 3);
bottles[6] = new Soda("Vichy Nouveu", "mineralvatten", 4, 3);
//<====================================== End block
int beverageIn = 0;//Creates the menu choice-variable
while (beverageIn != 9)//Exit this menu by typing 9 - This value should be different if we add more bottle types to add.
{
Screen.addSodaMenu();//Calls the menu in the Screen-class
Console.WriteLine("You have {0} bottles in the crate.\n\nChoose :", bottleCount());
Screen.cup(8, 13);
int i = bottleCount();//Keeps track of how many bottles we have in the crate. If the crate is full we get expelled out of this method
if (i == 25)
{ beverageIn = 9; }
else beverageIn = Screen.inInt();//end
switch (beverageIn) //Loop for adding bottles to the crate exit by pressing 9
{
case 1:
i = bottleCount();
bottles[i] = new Soda("Coca Cola", "Soda", 5, 1);
i++;
break;
case 2:
i = bottleCount();
bottles[i] = new Soda("Champis", "Soda", 6, 1);
i++;
break;
case 3:
i = bottleCount();
bottles[i] = new Soda("Grappo", "Soda", 4, 1);
i++;
break;
case 4:
i = bottleCount();
bottles[i] = new Soda("Pripps Blå lättöl", "lättöl", 6, 2);
i++;
break;
case 5:
i = bottleCount();
bottles[i] = new Soda("Spendrups lättöl", "lättöl", 6, 2);
i++;
break;
case 6:
i = bottleCount();
bottles[i] = new Soda("Ramlösa citron", "mineralvatten", 4, 3);
i++;
break;
case 7:
i = bottleCount();
bottles[i] = new Soda("Vichy Nouveu", "mineralvatten", 4, 3);
i++;
break;
case 9:
i = bottleCount();
if (i == 25)
{
Console.WriteLine("\tThe crate is full\n\tGoing back to main menu. Press a key: ");
}
Console.WriteLine("Going back to main menu. Press a key: ");
break;
default://Default will never kick in as I have error handling in Screen.inInt()
Console.WriteLine("Error, pick a number between 1 and 7 or 9 to end.");
break;
}
}
}
// Sodacrate - End <========================================
}
}
我认为我没有回答你的第一个问题，但这应该足以让你开始。
修改
尝试使用此产品进行多次产品退货：
public string LinearSearchMultiple(int productCode)
{
var productCodes = string.Empty;
for (int i = 0; i < bottles.Length; i++)
{
var bottle = bottles[i];
if(bottle==null)
{
continue;
}
if (bottle.Product_code == productCode)
{
productCodes += bottle.ToString() + "\n";
}
}
return productCodes;
}
您可以这样称呼它：
int prodcode = Screen.inInt();
Console.WriteLine(LinearSearchMultiple(prodcode));
如果输入2：
，输出将是这样的PrippsBlå是啤酒成本6产品代码2
Spendrups是一种啤酒成本6产品代码2