Code:
#include <iostream>
#include <fstream>
#include <iomanip>
#include <cstdlib>
#include <ctime>
#include <string>
using namespace std;
int first_Option;
int second_Option;
int third_Option;
string product_type;
string product_ID;
string corresponding_product_ID;
int num_products;
string quit_Ans;
const int y_ID=33;
const int p_Name=6;
const int p_Types=2;
string(*arr)[p_Name][p_Types]=new string[y_ID][p_Name][p_Types];
string word;
double p_Price[y_ID];
double cost;
int y=0, x1=0, x2=0, x3=0;
char char_arr1[20];
char char_arr2[20];
char char_arr3[20];
int count1=0;
int count2=0;
int count3=0;
class T
{
public:
T()
{
total = 0;
}
void Ascending_order_of_Price()
{
ifstream myReadFile;
myReadFile.open("ProductList.txt");
while (myReadFile>>word)
{
if (word=="Book"||word=="Furniture"||word=="Shoe"||word=="Furniture"||word=="Stationary"||word=="Food")
{
x1=0;//arr[y][0][0] refer productID,arr[y][x1][0] refer productName, arr[y][0][x2] refer to productTypes.
x2=1;
arr[y][x1][x2]=word;
myReadFile>>cost;
p_Price[x3]=cost;
++y;
++x3;
x2=0;
}
else
{
arr[y][x1][x2]=word;
x1++;
}
}
cout << endl;
cout << left << setw(14) << "Product ID" << setw(30) << "Name" << setw(15) << "Type" << setw(11) << "Price (HK$)" << endl;
cout << "----------------------------------------------------------------------" << endl;
cout << fixed << setprecision(2);
for (int next = 1; next<y_ID; next++)
{
double insert = p_Price[next];//use Insertion sort and set double insert to store the smallest price.
string insert1 = arr[next][0][0];//if the next has change, the original variable s1(below there) will change too.
string insert2 = arr[next][1][0];
string insert3 = arr[next][2][0];
string insert4 = arr[next][3][0];
string insert5 = arr[next][4][0];
string insert6 = arr[next][0][1];
int moveItem = next;
while ((moveItem>0)&&(p_Price[moveItem-1]>insert))//example like P[0]>P[1], P[2]>P[3].......
{
p_Price[moveItem]=p_Price[moveItem-1];//both values change together
arr[moveItem][0][0]=arr[moveItem-1][0][0];//if the next has change, the original variable s1(below there) will change too.
arr[moveItem][1][0]=arr[moveItem-1][1][0];
arr[moveItem][2][0]=arr[moveItem-1][2][0];
arr[moveItem][3][0]=arr[moveItem-1][3][0];
arr[moveItem][4][0]=arr[moveItem-1][4][0];
arr[moveItem][0][1]=arr[moveItem-1][0][1];
moveItem--;
}
p_Price[moveItem] = insert;
arr[moveItem][0][0]=insert1;//arr[moveItem][0][0]=the original number of element.
arr[moveItem][1][0]=insert2;
arr[moveItem][2][0]=insert3;
arr[moveItem][3][0]=insert4;
arr[moveItem][4][0]=insert5;
arr[moveItem][0][1]=insert6;
}
for (int s1=0; s1 < y_ID; s1++)
{
cout << setw(14) << arr[s1][0][0];
if (arr[s1][2][0]=="\0")//1 //Since [s1][1][0] = "apple", then [s1][2][0] = "\0", thus the number of element is 1
{
cout << setw(29) << arr[s1][1][0];
}
else if (arr[s1][3][0]=="\0")//2
{
strcpy(char_arr1, arr[s1][1][0].c_str());//change string arr[s1][1][0] to char char_arr1[20]
for (int s3=0; char_arr1[s3]!='\0';s3++)
{
char_arr1[s3];
count1++;
}
cout << arr[s1][1][0] << " " << setw(30-count1-2) << arr[s1][2][0];
}
else if (arr[s1][4][0]=="\0")//3
{
strcpy(char_arr1, arr[s1][1][0].c_str());
strcpy(char_arr2, arr[s1][2][0].c_str());
for (int s4=0; char_arr1[s4]!='\0';s4++)
{
char_arr1[s4];
count1++;
}
for (int s5=0; char_arr2[s5]!='\0';s5++)
{
char_arr2[s5];
count2++;
}
cout << arr[s1][1][0] << " " << arr[s1][2][0] << " " << setw(30-count1-count2-3) << arr[s1][3][0];
}
else if (arr[s1][5][0]=="\0")//4
{
strcpy(char_arr1, arr[s1][1][0].c_str());
strcpy(char_arr2, arr[s1][2][0].c_str());
strcpy(char_arr3, arr[s1][3][0].c_str());
for (int s6=0; char_arr1[s6]!='\0';s6++)
{
char_arr1[s6];
count1++;
}
for (int s7=0; char_arr2[s7]!='\0';s7++)
{
char_arr2[s7];
count2++;
}
for (int s8=0; char_arr3[s8]!='\0';s8++)
{
char_arr3[s8];
count3++;
}
cout << arr[s1][1][0] << " " << arr[s1][2][0] << " " << arr[s1][3][0] << " " << setw(30-count1-count2-count3-4) << arr[s1][4][0];
}
cout << " " << setw(15) << arr[s1][0][1] << setw(11) << p_Price[s1] << endl;
count1=0;
count2=0;
count3=0;
}
cout << endl;
myReadFile.close();
}
void Ascending_order_of_Product_ID()
{
}
void Ascending_order_of_Product_Name()
{
}
void eShop_Main_Menu()
{
cout << "**** eShop Main Menu ****" << endl;
cout << "(1) List products" << endl;
cout << "(2) Filter products by type" << endl;
cout << "(3) Add product to shopping cart" << endl;
cout << "(4) Go to shopping cart" << endl;
cout << "(5) Quit " << endl;
cout << "*************************" << endl;
cout << "Option (1 - 5): ";
cin >> first_Option;
cout << endl;
if (first_Option == 1)
{
cout << "**** List Products Menu ****" << endl;
cout << "(1) Ascending order of Product ID" << endl;
cout << "(2) Ascending order of Product Name" << endl;
cout << "(3) Ascending order of Price" << endl;
cout << "****************************" << endl;
cout << "Enter your option (1 - 3): ";
cin >> second_Option;
cout << endl;
switch (second_Option)
{
case 1:
Ascending_order_of_Product_ID();
break;
case 2:
Ascending_order_of_Product_Name();
break;
case 3:
Ascending_order_of_Price();
break;
}
eShop_Main_Menu();
}
}
int main ()
{
ifstream myReadFile;
myReadFile.open("ProductList.txt");
T eShop;
eShop. eShop_Main_Menu();
myReadFile.close();
delete[]arr;
system ("pause");
return 0;
}
i want to load a text file (must one file) and get data from file with setw(), thus i use Ascending_order_of_Price();,Ascending_order_of_Pro duct_ID(); and Ascending_order_of_Product_Name(); to make an order in different type of item. Supposed that these three class functions are same. it is a problem that i can not execute the program or these class functions because repeated loading same file. However, i want to use arr[][][] to do the ascending order and make more actions by arr[][][].
about the class function eShop_Main_Menu();, I want to call it more than one, but it contains these class functions. Please Help me! give me some advises or some code for reference.
Originally Posted by Adak
