What is the Difference Between Objects and Classes?

The main difference between objects and classes is that a class is a blueprint or template for creating objects, while an object is an instance of a class that represents a real-world concept. Here are some key differences between classes and objects:

Memory allocation: Memory is not allocated to classes when they are defined, while objects are allocated memory space when they are created.
Declaration: A class is declared only once using the class keyword, while objects are created multiple times as needed using the class name or new keyword in some languages.
Entity type: A class is a logical entity, while an object is a physical entity.
Modifiability: Classes cannot be manipulated as they are not available in memory, while objects can be manipulated.

In simpler terms, a class defines the structure and behavior, while an object is an actual representation of that structure in memory. Classes can be considered as the blueprint of a house, while objects are the actual houses built based on those blueprints.