Mega Code Archive
Reads and writes several objects to disk
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#include <fstream>
#include <iostream>
using namespace std;
class person{
protected:
char name[80];
int age;
public:
void getData(){
cout << "\n Enter name: "; cin >> name;
cout << " Enter age: "; cin >> age;
}
void showData(){
cout << "\n Name: " << name;
cout << "\n Age: " << age;
}
};
int main(){
char ch;
person pers;
fstream file;
file.open("GROUP.DAT", ios::app | ios::out | ios::in | ios::binary );
do {
cout << "\nEnter person's data:";
pers.getData();
file.write( reinterpret_cast<char*>(&pers), sizeof(pers) );
cout << "Enter another person (y/n)? ";
cin >> ch;
}while(ch=='y');
file.seekg(0);
file.read( reinterpret_cast<char*>(&pers), sizeof(pers) );
while( !file.eof() ){
cout << "\nPerson:";
pers.showData();
file.read( reinterpret_cast<char*>(&pers), sizeof(pers) );
}
cout << endl;
return 0;
}
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