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Mutator Method

Written by the Fiveable Content Team • Last updated August 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated August 2025

Definition

A mutator method, also known as a setter method, is a type of method in object-oriented programming that is responsible for modifying the value of an object's attribute.

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