Answer to Question #180485 in C++ for PAVITHRA

Question

Create a class named as car with 

data members as 

carcompany,cost of car,number 

of airbags. Create a file and write 

the array of objects into file. 

Search the data by carcompany

from the stored file and display

the result .

Answer 1

#include<iostream>
#include<fstream>
#include<string>


using namespace std;


class Car
{
private:
	string carCompany;
	float costCar;
	int numberAirbags;


public:
	Car(){}


	Car(string carCompany,float costCar,int numberAirbags){
		this->carCompany=carCompany;
		this->costCar=costCar;
		this->numberAirbags=numberAirbags;
	}


	string getCarCompany(){
		return this->carCompany;
	}
	float getCostCar(){
		return this->costCar;
	}
	int getNumberAirbags(){
		return this->numberAirbags;
	}
	
};


int main()
{
	const string FILE_NAME="Cars.txt";
	//Creating an array of objects of class Car
	Car cars[5];
	cars[0]=Car("Audi",25000,4);
	cars[1]=Car("Ford",15000,2);
	cars[2]=Car("BMW",25400,2);
	cars[3]=Car("Honda",45604,4);
	cars[4]=Car("Fiat",14556,4);
	//write the array of objects into file. 
	ofstream carsOfstream(FILE_NAME, ios::out);
	for(int i=0; i<5; ++i){
		carsOfstream <<cars[i].getCarCompany() << " "<<cars[i].getCostCar()<< " "<< cars[i].getNumberAirbags()<< "\n";
	}
	carsOfstream.close();
	//read 
	ifstream carsIfstream(FILE_NAME);
	if(!carsIfstream)
	{
		cerr << "Error: open file '"<<FILE_NAME<<"' for reading\n";
		return 1;
	}
	string carCompany;
	float costCar;
	int numberAirbags;
	int counter=0;
	string line;
	//read from file
	while(carsIfstream>>carCompany>>costCar>>numberAirbags){
		cars[counter]=Car(carCompany,costCar,numberAirbags);
		counter++;	
	}    
	carsIfstream.close();
	//Search the data by carcompany from the stored file and display the result.
	string carcompanyTarget;
	int numbeOfCar=0;
	cout<<"Enter car company: ";
	getline(cin,carcompanyTarget);
	for(int i=0;i<5;i++)
	{
		if(cars[i].getCarCompany()==carcompanyTarget){
			cout <<"Car company: "<<cars[i].getCarCompany() << ", Cost car: "<<cars[i].getCostCar()<< ", Number of airbags: "<< cars[i].getNumberAirbags()<< "\n";
			numbeOfCar++;
		}
	}
	if(numbeOfCar==0){
		cout<<"\nNot found\n\n";
	}


	system("pause");
	return 0;
}