A mobile app for a library contains a 'Book' object with information about each book. If an app feature needs to display the title of a book, which aspect of the 'Book' object would the feature need to reference?
The feature would require a new variable outside the 'Book' object.
The feature would need to reference a property of the 'Book' object.
The feature would construct a new class to extract the title information.
The feature would invoke a method of the 'Book' object.
In object-oriented programming, a property is an attribute of an object that holds data. The title of the book would be stored in a 'title' property of the 'Book' object. Methods perform actions or computations, not store data. Classes define the structure of an object but are a blueprint, not individual data points. A variable is a storage location paired with an associated symbolic name (an identifier), which contains some known or unknown quantity of information referred to as a value; while a property can be accessed with variables, the property itself contains the information you want to retrieve, in this case, the title of the book.
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