Can you name the main ways objects interact in object-oriented programming?

Main ways of object interaction in object-oriented programming:

• Method calls — objects invoke methods on each other to perform actions.
• Message passing — objects exchange messages (method calls) to coordinate work.
• Aggregation and composition — one object contains references to other objects, utilizing their functionality.
• Inheritance and polymorphism — objects interact through common interfaces or base classes, allowing different implementations.

For example, an "Automobile" object can interact with an "Engine" object through a method call to start the engine.