CORBA::String_var greeting = CORBA::string_dup("Hello, world!");
CORBA::String_var name = CORBA::string_dup("John Doe"); std::cout << "Length of the string: " << name.in().length() << std::endl;In this example, we create a String_var object called 'name' and initialize it with the string "John Doe". Then, we call the 'in' method to get a reference to the internal string representation stored in the String_var object and call the 'length' method on that reference to get the length of the string. Overall, the String_var type is a useful utility class for storing and manipulating strings in CORBA-based distributed systems.