Summary

Objects are ways of bundling parts of programs into small, manageable pieces. Objects are simply a definition for a type of data to be stored. An instance of an object contains meaningful information, these are manipulated by the program. There can be more than one instance of an object. Instances of objects keep track of information, called member data, or instance variables. This data is kept track of by the instance until it no longer exists. Object instances also know how to perform certain functions, called member functions, or class functions. Every instance of an object performs the same steps when carrying out a member function, although the steps can be influenced by the instances' present member data