5.5 Mutator Methods

Enduring Understanding

Programmers use code to represent a physical object or nonphysical concept, real or imagined, by defining a class based on the attributes and/or behaviors of the object or concept.

Learning Objective

Define behaviors of an object through void methods with or without parameters written in a class.

Essential Knowledge

A void method does not return a value. Its header contains the keyword void before the method name.

A mutator (modifier) method is often a void method that changes the values of instance variables or static variables.