The getter function is used to retrieve the variable value and the setter function is used to set the variable value. Remember: You can directly access public member variables, but private member variables are not accessible. Therefore, we need getter functions.

Why is a getter setter bad?

Getter and setter methods (also known as accessors) are dangerous for the same reason that public fields are dangerous: They provide external access to implementation details. ... You also have to change the accessor's return type. You use this return value in numerous places, so you must also change all of that code.

Why are getters and setters important?

Getters and Setters play an important role in retrieving and updating the value of a variable outside the encapsulating class. A setter updates the value of a variable, while a getter reads the value of a variable.