read data from a .dat file instead of my array

[Fanell28]

I have wrote this code for my C++ class. now I have to move some of my data into a .dat file. I now how to ready and write but I having problem on how Im going to move my data into a file if I already create an array.

Can anyone help with this? I have add some instruction into the code.

/***
* Remove FruitFile structure and its data from this code.
* Create a data file (fruit.dat) and put all the hard coded data that is in a FruitFileData array
* into a fruit.dat file. You will not change any other logic of this code, just read the data from the
* file instead of an array.

#include <iostream>
#include <iomanip>
using namespace std;

struct FruitFile { // This data structure should be a record in a file
int Type;
int ID;
int Color;
int nTotalSeeds;
};

enum ColorID {GREEN = 5, YELLOW = 7, BROWN = 9};
enum FruitType {PINEAPPLE,ORANGE};


class CFruit {
public:
CFruit() { }
virtual void GetData(const FruitFile &Data) = 0;
virtual void ShowData() = 0;

char *SetColorName(ColorID Color);
FruitType GetFruitType() { return m_FruitType; }

protected:
FruitType m_FruitType;
int m_FruitID;

};

// Function: SetColorName
char *CFruit::SetColorName(ColorID Color)
{
switch (Color) {
case GREEN:
return "Green";
break;
case YELLOW:
return "Yellow";
break;
case BROWN:
return "Brown";
break;
default:
return "No Color";
break;

}
}

class CPineapple : public CFruit {
public:
CPineapple() : CFruit() {}
void GetData(const FruitFile &Data);
void ShowData();

private:
ColorID m_ShellColor;
};


// Function: GetData
void CPineapple::GetData(const FruitFile &Data)
{
m_ShellColor = ColorID(Data.Color); // cast integer to enum
m_FruitType = FruitType(Data.Type); // cast integer to enum
m_FruitID = Data.ID;
}

// Function: ShowData
void CPineapple::ShowData()
{
cout << m_FruitType << setw(16) << m_FruitID << setw(20) << SetColorName(m_ShellColor) << "\n";
}

class COrange : public CFruit {
public:
COrange() : CFruit() {}
void GetData(const FruitFile &Data);
void ShowData();
private:
int m_TotalSeeds;
ColorID m_PeelColor;
};

void COrange::GetData(const FruitFile &Data)
{
m_TotalSeeds = Data.nTotalSeeds;
m_PeelColor = ColorID(Data.Color); // cast integer to enum
m_FruitType = FruitType(Data.Type); // cast integer to enum
m_FruitID = Data.ID;
}

void COrange::ShowData()
{
cout << m_FruitType << setw(16) << m_FruitID << setw(20) << SetColorName(m_PeelColor) << setw(13) << m_TotalSeeds << "\n";
}


// Pineapple = 0
// Orange = 1
int main()
{
FruitFile FruitFileData[10] = { // This data should be in a file
{1,1,5,13},
{0,3,5},
{0,5,9},
{0,7,7},
{1,4,7,17},
{0,8,5},
{1,9,9,12},
{1,5,5,10},
{1,2,9,15},
{0,8,5}
};

CFruit *pFruit[10];

for (int i = 0; i < 10; i++) {
switch (FruitFileData[i].Type) {
case PINEAPPLE: // Create Pineapple Object
pFruit[i] = new CPineapple();
break;
case ORANGE: // Create Orange Object
pFruit[i] = new COrange();
break;
default:
break;
}
pFruit[i]->GetData(FruitFileData[i]); // call appropriate function

} // end for loop

cout << "Following are Pineapple values\n";
cout << "\nFruit Type" << "\tFruit ID" << "\tShell Color" << "\n";
for (int i = 0; i < 10; i++) {
if (pFruit[i]->GetFruitType() == PINEAPPLE)
pFruit[i]->ShowData();
}

cout << "\n\nFollowing are Orange values\n";
cout << "\nFruit Type" << "\tFruit ID" << "\tPeel Color" << "\tTotal Seeds" << "\n";
for (int i = 0; i < 10; i++) {
if (pFruit[i]->GetFruitType() == ORANGE)
pFruit[i]->ShowData();
}

for (int i = 0; i < 10; i++) {
if (pFruit[i])
delete pFruit[i]; // Delete appropriate object
}

return 0;
}


Thanks,
Fanell