c++ 1. Create lines necessary to open a file named “name.txt” and store your name in it. 2. Create lines necessary to open a user-specified file and get a double from it. Solution 1. #include<iostream> #include<fstream> using namespace std; int main(){ string name; ofstream writeFile; writeFile.open(\"name.txt\"); cout<<\"Enter your name: \"; getline(cin, name); writeFile<<name; writeFile.close(); cout<<\"Name has written successfully in file\"<<endl; return 0; } 2. #include<iostream> #include<fstream> using namespace std; int main(){ string filename;; ifstream readFile; cout<<\"Enter input file name: \"; cin>>filename; readFile.open(filename.c_str()); double num; readFile>>num; readFile.close(); cout<<\"Double number from file is: \"<<num<<endl; return 0; } .

1. c++
1. Create lines necessary to open a file named “name.txt” and store your name in it.
2. Create lines necessary to open a user-specified file and get a double from it.
Solution
1.
#include<iostream>
#include<fstream>
using namespace std;
int main(){
string name;
ofstream writeFile;
writeFile.open("name.txt");
cout<<"Enter your name: ";
getline(cin, name);
writeFile<<name;
writeFile.close();
cout<<"Name has written successfully in file"<<endl;
return 0;
}
2.

2. #include<iostream>
#include<fstream>
using namespace std;
int main(){
string filename;;
ifstream readFile;
cout<<"Enter input file name: ";
cin>>filename;
readFile.open(filename.c_str());
double num;
readFile>>num;
readFile.close();
cout<<"Double number from file is: "<<num<<endl;
return 0;
}