how to read from stringstream c++ code example

Example 1: stringstream in c++

- A stringstream associates a string object with a stream allowing 
you to read from the string as if it were a stream (like cin).
- Method:
 clear() — to clear the stream
 str() — to get and set string object whose content is present in stream.
 operator << — add a string to the stringstream object.
 operator >> — read something from the stringstream object,

Example 2: stringstream in c++

std::stringstream os;
os << "12345 67.89"; // insert a string of numbers into the stream

std::string strValue;
os >> strValue;

std::string strValue2;
os >> strValue2;

// print the numbers separated by a dash
std::cout << strValue << " - " << strValue2 << std::endl;