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Object Oriented Programminglike and equipping them with functionality. For example, a class named Car might define the attributes color and mileage for its objects, and assign them functionality: actions such as open the trunk, start the engine, and change gears. These <span>different actions are known as methods, although you'll often see Rails enthusiasts refer to the methods of a controller (a kind of object used in Rails with which you'll become very familiar) as actions; you can safely consider the two terms to be interchangeable.
Understanding the relationship between a class and its objects is integral to understanding how OOP works. For instance, one object can invoke functionality on another object Summary
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