class Expressions01{ 
  public:
  static void classMain(){
    //Instantiate an object in dynamic memory
    // and save its reference in a pointer 
    // variable.  Note the use of the Indirection
    // operator, the new operator, and the
    // Assignment operator.
    Expressions01* ptrToObject = 
                             new Expressions01();

    //Invoke an instance function on the object.
    // Note the use of the Pointer to Member
    // operator.
    ptrToObject -> doSomething();
  }//End classMain function
  
Listing 2