Definition: Unsentelled is a term used in computer programming and software engineering to refer to an object that has not been sent or transmitted. It can be seen as a placeholder or a dummy object, which can be created during the development phase of a project by using a "dummy" constructor. In unsentinelled objects, there's no actual data stored or manipulated inside it. Instead, it serves as a placeholder for future use in the software environment. For example: ```java public class DummyClass