Class is used as a template for declaring and
creating the objects. | An object is an instance of a class. |
| When a class is created, no memory is allocated. | Objects are allocated memory space whenever they are created. |
| The class has to be declared first and only once. | An object is created many times as per requirement. |
A class can not be manipulated as they are not
available in the memory. | Objects can be manipulated. |
| A class is a logical entity. | An object is a physical entity. |
| It is declared with the class keyword | It is created with a class name in C++ and
with the new keywords in Java. |
Class does not contain any values which
can be associated with the field. | Each object has its own values, which are
associated with it. |
| A class is used to bind data as well as methods together as a single unit. | Objects are like a variable of the class. |
