Reading numbers from a file

I know this is a stupid question, but how can I read numbers from a file and store them in an int, double, or float variable? I am quite familar with how characters can be read and stored in a string, but how can this be done with numbers?

Thanks! ^_^

declare an fstream in ios::in mode or an ifstream, and associate either one with the desired file. Then just use the >> operator as you would with cin.


fstream fin("myFile.txt", ios::in);
fin >> num;

ifstream fin("myFile.txt");
fin >> num;

Thank you so much! ^_^