What is a characteristic of a void method?

A void method is specifically defined to perform an action without returning any value to its caller. This is indicated by its return type being specified as "void." The purpose of using a void return type is to signal that the method will complete a task but does not need to send any data back. For example, a method that prints a message to the console or modifies an object's state without needing to return a value is a typical use case for void methods.

The other options either describe characteristics of methods in general or requirements that do not apply to void methods. A method with a return type specified as void cannot return any value, hence the specification ensures clarity in its usage. This characteristic is fundamental to understanding how void methods operate within Java and contributes to effective program structure and design.