What is the difference between an accessor method and a mutator method?

Accessors must always use the return type 'void', while mutators do not.

A class can have many accessors but only one mutator.

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An accessor provides the client access to data in the object, while a mutator lets the client change the object's state.

Accessors are methods whose code never changes, and mutators are methods where the programmer can change the code over time.

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Accessors. names often begin with 'set', while mutators' names often begin with 'get' or $\text{'}$is$\text{'}.$

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