3.2 To solve the problem of the ofstream object that loses data, we can use the fstream object. In c++ a. Write a code snippet that declares an fstream object and opens it for both read and write in...

3.2 To solve the problem of the ofstream object that loses data, we can use the fstream object. In c++
a. Write a code snippet that declares an fstream object and opens it for both read and write in one open statement.

b. Write a code snippet that will combine two variables into a string with a delimiter, to be
written into the file.