#include #include using namespace std; class Test { public: Test() : id{0}, data{""} {} void readData() { cin >> id >> ws; cin >> data; } int getInt() const { return id; } void setInt(int i){ id = i; } string getStr() const { return data; } void setStr(string const& s){ data = s; } private: int id; string data; }; void serialize(ofstream& ofs) { Test t; char ch{'y'}; while(ch == 'y' || ch == 'Y'){ t.readData(); ofs << t.getInt() << ' ' << t.getStr() << ' '; cout << "read another record y/n ? : "; cin >> ch; } ofs.close(); } void deserialize(ifstream& ifs) { int id; string s; while(!(ifs >> ws).eof()) { ifs >> id >> s; cout << id << " " << s << '\n'; if(ifs.eof() || ifs.fail()) break; } ifs.close(); } int main() { while(true) { system("cls"); cout << "1 For Write data to file\n"; cout << "2 For Read Data from file\n"; cout << "3 To Exit\n"; cout << "Option : "; int op; cin >> op; switch(op) { case 1: { cout << "\n\nEnter your data : \n\n"; ofstream ofs("test.bin", ios::binary | ios::app); if(ofs) serialize(ofs); else cout << "file not opened\n"; cin.get(); break; } case 2: { cout << "\n\nData from file : \n\n"; ifstream ifs("test.bin", ios::binary); if(ifs) deserialize(ifs); else cout << "file not opened\n"; cin.get(); break; } case 3: cout << "Exiting\n"; exit(0); default: cout << "Invalid entry, try again\n"; cin.get(); break; } // end switch cin.get(); } // end while return 0; }

String_read_write_to_from_file(for Rohit).cpp