1.5.7 Encapsulation and Information Hiding
Classes (and their objects) encapsulate, i.e., encase, their attributes and methods. A class’s (and its object’s) attributes and methods are intimately related. Objects may communicate with one another, but they’re normally not allowed to know how other objects are implemented—implementation details are hidden within the objects themselves. This information hiding, as we’ll see, is crucial to good software engineering.
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