In object-oriented programming, what is a method?

• A. A data type
• B. A class
• C. A function that takes action on an object
• D. A variable

Answer: (C)

In object-oriented programming, a method is a function defined inside a class that implements actions for an object. It operates on the object's data, can read or modify its fields, and is invoked on a specific instance of the class (an object). Some languages also have methods that belong to the class itself (static methods), which operate at the class level rather than on a particular object. This distinguishes a method from a data type (which defines values), from a class (the blueprint), and from a variable (a container for data).