An object is essentially a representation of a thing. An object has some attributes, just like everything has characteristics. However, a class in the programming world is primarily a data structure designed for a specific object. The class is also said to be a blueprint of an object. It keeps track of a bundle of related things about the object. These related things are known as fields, properties, and functions (or methods).
The fields are data members of a class. They must be declared and initialized before they are used. They are mostly for class internal use.
Some fields may serve as properties, ...
