Need help on the display total value of all item

[HarisHohkl]

Hi, I've this function in a class to update the total value.but when i try to remove the these row highlight in Bold it crash, what should i do????

void display_total_v alue()

{
double value;
double totalvalue=0;
int r, c;
setcolor (11);
for( r=0; r<row; r++ )

{
for( c=0; c<col; c++ )
{
if(warehouseshe lfTVs[r][c] == 0) // ** check if item on shelf
cout <<"\t"<<warehou seshelf[r][c] << " " << "none\t";
else
value=warehouse shelf[r][c]*warehouseshelf TVs[r][c]->cost;
totalvalue=valu e + warehouseshelf[r][c];
}
cout << " "<< endl;
}
cout <<"\t"<< "Total value is = $" << totalvalue << endl;
system("PAUSE") ;
}

below is the whole code

#include <iostream.h>
#include <iomanip.h>
#include <string.h>
#include <process.h>
#include <cstdlib>
#include <windows.h>
 
#define  row  4
#define  col  5
 
//The function that you'll use to
//set the colour
 
void setcolor(unsigned short color)                 
{                                                   
    HANDLE hcon = GetStdHandle(STD_OUTPUT_HANDLE);
    SetConsoleTextAttribute(hcon,color);
}
 
class TV                                                  
{ 
public :  // ** made public for now
    int itemno;
    char description[100];    
    char model[100];      
    double cost;
    int quantity;  // ** added
 
    //    this function will prompt user to key in details
 
    void update()
 
    {    setcolor (11);
        cout << " "<< endl;
        cout <<"\t"<< "Enter item no: ";cin >>itemno;
        cout <<"\t"<< "Enter description: ";
        cin.ignore();
        cin.getline( description, 100 );
        cout <<"\t"<<"Enter model: ";
        cin.getline( model, 100 );
        cout <<"\t"<< "Enter cost: $";cin >> cost;
        quantity=0;   // ** initialise
    }
 
    void display_item()
 
    {    setcolor (11);
        cout << " "<< endl;
        cout <<"\t"<< "Item no: " << itemno << endl;
        cout <<"\t"<< "Description of item: " << description << endl;
        cout <<"\t"<< "Model: "<<model<<endl;
        cout <<"\t"<< "Cost of item: $ " << cost << endl;
        cout << " "<< endl;
        system("PAUSE");
    }
};
 
class shelf
{    
    int  warehouseshelf[row][col];  // ** initialise to 0 here
    TV  *warehouseshelfTVs[row][col];// ** added TVs
    double itemcost;
    int itemno;
    int quantity;
    double cost;
 
public:
 
    void initial()
    {    
        int r, c;
        for( r=0; r<row; r++ )
            for( c=0; c<col;c++ )
            { warehouseshelf[r][c] = 0; warehouseshelfTVs[r][c] = (TV *) 0; }
    }
 
    //    this function will update the shelf quantity
 
    void update_shelfs(TV *brand)
 
    {    
        int i, numitems, r , c, quantity;
        setcolor (11);
        cout << " "<< endl;
 
        {
            cout <<"\t"<< "Enter which row to update for item: ";    cin >> r;
 
            cout <<"\t"<< "Enter which column to update for item: "; cin >> c;
 
            cout <<"\t"<< "Enter no of quantity to update for item: ";    cin >> quantity;
 
                    warehouseshelfTVs[r][c]=brand;   // ** added TV to shelf
            warehouseshelf[r][c] = quantity;
        }
        setcolor (12);
        cout <<"\t"<< "Update completed................." << endl;
        setcolor (11);
        system("PAUSE");
}    
 
    void display_shelfs()
 
    {    setcolor (11);
        int r, c;
 
        for( r=0; r<row; r++ )   
 
        {
            for( c=0; c<col; c++ )
            {
             if(warehouseshelfTVs[r][c] == 0)         // ** check if item on shelf
                 cout <<"\t"<<warehouseshelf[r][c] << " " <<  "none\t";                
             else
                cout <<"\t"<<warehouseshelf[r][c] << " " <<  warehouseshelfTVs[r][c]->itemno<<"\t";             
            }
        cout << " "<< endl;
        }
        system("PAUSE");
    }
 
    void display_total_all_items_stored()
 
    {    setcolor (11);
        int sum  = 0;
        int r, c;
 
        for( r=0; r<row; r++ )
        {    
            for( c=0; c<col; c ++ )
            {
                sum = sum + warehouseshelf[r][c];            }
        }
        cout <<"\t"<< "Total sum of items is = " << sum << endl;
            system("PAUSE");
    }
 
    void display_total_value()
 
    {    
        double value;
        double totalvalue=0;
        int r, c;
        setcolor (11);
        for( r=0; r<row; r++ )   
 
        {
            for( c=0; c<col; c++ )
            {
             if(warehouseshelfTVs[r][c] == 0)         // ** check if item on shelf
                 cout <<"\t"<<warehouseshelf[r][c] << " " <<  "none\t";                
             else
                value=warehouseshelf[r][c]*warehouseshelfTVs[r][c]->cost;
                totalvalue=value + warehouseshelf[r][c];             
            }
        cout << " "<< endl;
        }
 
        cout <<"\t"<< "Total value is = $" << totalvalue << endl;
        system("PAUSE");
  }
};
 
class warehouse
{
 
public:
 
        // function to update address
    char tempaddress[200];
    char *update_address (void)
    {    
        setcolor (11);
        cout <<"\t"<< "Enter address: ";
        cin.getline (tempaddress, 200);
        cout << " "<< endl;
        cout <<"\t"<<"Address for the warehouse is "<<tempaddress <<endl;
        cout << " "<< endl;
        int size = strlen (tempaddress); //** change the string lenght
        char *test = new char[size];    
        //strcpy (test, tempaddress);
        //cout <<"\t"<<strlen (tempaddress);
 
        return test;
                                delete test;
    }
 
    void display_Address (void)
    {    setcolor (11);
          {cout <<"\t"<<"Update address is "<<tempaddress<<endl;
        cout << " "<< endl;}
        setcolor (14);
    }
};
 
 
    //function to show display menu
 
    void display_menu()
 
    {    
        cout << " "<< endl;
        cout <<"\t"<< "Select option " << endl;
        cout <<"\t"<< "-----------------------" << endl;
        setcolor (11);
        cout <<"\t"<< "1) Update item details " << endl;
        cout <<"\t"<< "2) Display item details " << endl;
        cout <<"\t"<< "3) Update warehouse address" << endl;
        cout <<"\t"<< "4) Display Updated warehouse address" << endl;
        cout <<"\t"<< "5) Add items to the warehouse shelf" << endl;
        cout <<"\t"<< "6) Display warehouse detail" << endl;
        cout <<"\t"<< "7) Find total number of items in warehouse" << endl;
        cout <<"\t"<< "8) Find total value in warehouse" << endl;
        cout <<"\t"<< "9) Exit "<<endl;
        setcolor (14);
        cout <<"\t"<< "-----------------------" << endl;
        cout <<"\t"<< "Enter option: ";    
 
    }
 
    void select_choice()
 
    {    
        cout << " "<< endl;
        cout <<"\t"<<"Select TV  "<<endl;
        cout <<"\t"<< "-----------------------" << endl;
        setcolor (11);
        cout <<"\t"<<"1 for TV1"<<endl;
        cout <<"\t"<<"2 for TV2"<<endl;
        cout <<"\t"<<"3 for TV3"<<endl;
        setcolor (14);
        cout <<"\t"<< "-----------------------" << endl;
        cout <<"\t"<< "Enter Brand using 1-3: ";
    }
 
 
 
 
int main(void)
{    int i;
    int choice;
    char *address;
 
 
    TV    brand[3]; //** tv class 3 object
    shelf s1;
    s1.initial();
    warehouse w1;
 
 
    do
    {    setcolor (14);
        system("cls");
        display_menu();
        cin >> choice;
        cin.ignore();
        switch( choice )
        {    
            case 1:    system("cls");
 
                    {    cout << " "<< endl;
                        cout <<"\t"<<"Update item details" << endl;
                        cout <<"\t"<<"-----------------------"<<endl;
                        select_choice();
 
                        do 
                        {    
                            cin >>i;
 
                            if (i==0||i>3)
                                {    
                                    cout <<" "<<endl;
                                    setcolor (12);
                                    cout <<"\t"<<"Wrong choice. Pls enter 1-3: ";
                                }
                            else 
                                {
                                    brand[i-1].update();
                                }
                        }
                        while (i==0||i>3);
                    }
 
            break;
 
            case 2:    system("cls");
 
                {    cout << " "<< endl;
                    cout <<"\t"<<"Display item details" << endl;
                    cout <<"\t"<<"-----------------------"<<endl;
                    select_choice();
 
                do 
                    {
                        cin >>i;
 
                        if (i==0||i>3)
                            {    
                                cout <<" "<<endl;
                                setcolor (12);
                                cout <<"\t"<<"Wrong choice. Pls enter 1-3: ";
                            }
                        else 
                            {
                                brand[i-1].display_item();
                            }
                    }
                while (i==0||i>3);
                }
 
            break;
 
            case 3:    system("cls");
                setcolor (14);
                cout << " "<< endl;
                cout <<"\t"<<"Update address" << endl;
                cout <<"\t"<<"-----------------------"<<endl;
                cout <<" "<<endl;                
                address = w1.update_address();
                system("PAUSE");
 
                break;
 
            case 4:    system("cls");
 
                cout << " "<< endl;
                cout <<"\t"<<"Display Updated warehouse address" << endl;
                cout <<"\t"<<"-----------------------"<<endl;
                cout <<" "<<endl;                
                w1.display_Address ();
                system("PAUSE");
 
                break;
 
            case 5:    system("cls");
 
                {    cout << " "<< endl;
                    cout <<"\t"<<"Update Warehouse Shelfs" << endl;
                    cout <<"\t"<<"-----------------------"<<endl;
                    select_choice();
                do 
                    {
                        cin >>i;
 
                        if (i==0||i>3)
                            {    
                                cout <<" "<<endl;
                                setcolor (12);
                                cout <<"\t"<<"Wrong choice. Pls enter 1-3: ";
                            }
                        else 
                            {    
                                cout << " "<< endl;
                                s1.update_shelfs(&brand[i-1]);  // ** pass in TV item
                            }
                    }
                while (i==0||i>3);
                }
 
            break;
 
            case 6:    system("cls");
 
                {    cout << " "<< endl;
                    cout <<"\t"<<"Display Warehouse Selfs" << endl;
                    cout <<"\t"<<"-----------------------"<<endl;
                            {    
                                cout << " "<< endl;
                                s1.display_shelfs();
                            }
 
                }
 
            break;
 
        case 7:    system("cls");
 
        {    cout << " "<< endl;
            cout <<"\t"<<"Display Total Items" << endl;
            cout <<"\t"<<"-----------------------"<<endl;
 
        {
                                cout<<" "<<endl;
                                s1.display_total_all_items_stored();
        }
                }
 
            break;
 
 
            case 8: system("cls");
 
                {    cout << " "<< endl;
            cout <<"\t"<<"Display Total Value" << endl;
            cout <<"\t"<<"-----------------------"<<endl;
 
    {
                            cout<<" "<<endl;
                            s1.display_total_value();
            }
 
            }
        break;
 
        case 9: 
        cout <<" "<<endl;
        setcolor (12);
        cout <<"\t"<< "Bye Bye. See you again"<<endl;
        cout<<" "<<endl;
        break;
 
        default:
        cout<<" "<<endl;
        setcolor (12);
        cout <<"\t"<<"Invalid choice.Pls re-enter again"<<endl;
                system("PAUSE");
        }
    }     while( choice != 9 );
    return 0;
}
 

Thanks

[horace1]

you only need to add to the total value if there is something on the shelf, e.g.

    void display_total_value()    
    {    
        double value;
        double totalvalue=0;
        int r, c;
        setcolor (11);
        for( r=0; r<row; r++ )   
        {
            for( c=0; c<col; c++ )
            {
                        if(warehouseshelfTVs[r][c] != 0)         // ** check if item on shelf
                                totalvalue+=warehouseshelf[r][c]*warehouseshelfTVs[r][c]->cost;
            }
        cout << " "<< endl;
        }    
        cout <<"\t"<< "Total value is = $" << totalvalue << endl;
        system("PAUSE");
  }
};
 

[HarisHohkl]

Thanks for the help.

you only need to add to the total value if there is something on the shelf, e.g.

    void display_total_value()    
    {    
        double value;
        double totalvalue=0;
        int r, c;
        setcolor (11);
        for( r=0; r<row; r++ )   
        {
            for( c=0; c<col; c++ )
            {
                        if(warehouseshelfTVs[r][c] != 0)         // ** check if item on shelf
                                totalvalue+=warehouseshelf[r][c]*warehouseshelfTVs[r][c]->cost;
            }
        cout << " "<< endl;
        }    
        cout <<"\t"<< "Total value is = $" << totalvalue << endl;
        system("PAUSE");
  }
};