Write a C++ programs to: Declare a class Swap with the following members: (3 points) a. two member variables of integer b. one member function to swap the integers between the two variables (the arguments should be by reference) 2.a main function to: member a. read two integers from the keyboard and assigned them to the Swap(3 points) object of class b. swap the two integers. (2 call the object's member function to points) display the values of the object's (2 member variables on the screen points)