Encapsulation

Updated 06 Sep 2026

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What it is
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  restricting direct access to an object's internal data, exposing it only through defined public methods, to protect data integrity
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Purpose
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  maintains data integrity
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  controls how data is accessed and modified, rather than leaving it open to arbitrary changes
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Example
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  a Mahasiswa class keeps its nama field private, exposing it only via getNama()/setNama() rather than allowing direct field access
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Distinguish from
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  Unavailable reference — abstraction hides unnecessary complexity (what something does, not how); encapsulation restricts access to data, regardless of complexity
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Related
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  Coupling
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Cards
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  Distinguish encapsulation from abstraction.
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    abstraction hides unnecessary complexity (what something does, not how); encapsulation restricts direct access to data, regardless of complexity

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