C++ ClassesLesson 36Free preview

C++ Encapsulation

This lesson is part of C++ · All levels

Summary

Encapsulation is an OOP principle that combines data with the method that manages it, while hiding internal details behind private access. Class users use public methods like getters and setter without having to know how the data is stored inside. This principle makes programs safer, easier to test, and less likely to be damaged by misuse.

Key points

Data is given private access and then changed only by a controlled public method.
Getter reads the private value, the setter validates before changing the value.
Setters can reject unreasonable values so that the object remains consistent.
Encapsulation makes internal changes easier without touching the class user code.

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