Something

#include <iostream>#include <string>#include <fstream>using namespace std;int readfile(void);int main(int argc, char *argv[]){	int choice = 0;	cout << "1. Hello World" << endl << "2. Hello [Name]" << endl << "3. Exit" << endl;	cin>>choice;	switch (choice)	{	case 1:		cout << "1. Hello World" << endl << "2.Read File" << endl << "3. Hello World!" << endl << "4. End Program" <<endl;		break;		case 2:		readfile();		break;	case 3:		cout<< "Hello World! "<<endl;		break;			case 4:		break;	default:		break;					}}int readfile(void){			ifstream fin;		string name = "";		fin.open ("helloworld.txt");		if (fin.fail())		{			cout<<"Error could not open file!" <<endl;		}		getline(fin, name);		if (name == "")		{			cout<< "Hello World!"<<endl;		}		else 		{			cout<< "Hello " << name << "!" << endl;		}		fin.close();		return 0;}