Define about the Objects 
The object notation is the same in basic form as that for a class. There are three differences among the notations, these are given below:
-  Within the uppermost section of the class box, the name of the class whom object belongs appears after a colon. The object either has a name, which appears before the colon, or remains anonymous, in which case nothing appears before the colon. 
-  The contents of the uppermost compartment are underlined for an object. 
-  Each attribute defined for the given class has a particular value for each object that belongs to that class.