Name three important benefits of abstraction. What are the more common names for subroutine member and data member? What is a property in C#? What is the purpose of the “private” part of an object...

Name three important benefits of abstraction. What are the more common names for subroutine member and data member? What is a property in C#? What is the purpose of the “private” part of an object interface? Why can’t it be hidden completely? What is the purpose of the :: operator in C++?