I reading a book about OOP titled An introduction to Object oriented programming. The book is written by Timothy BUDD.
In the book he said, I quote:
Action is initiated in object-oriented programming by the transmission of a message to an agent (an object) responsible for the action. The message encodes the request for an action and is accompanied by any additional information (arguments) needed to carry out the request. The receiver is the object to whom the message is sent. If the receiver accepts the message, it accepts the responsibility to carry out the indicated action. In response to a message, the receiver will perform some method to satisfy the request.
Please note the use of term message and method.
I was introduced to OOP in C# and I know what methods are. What confuses me is the term message. Are messages and methods or method invocation like :
object.Method()
the same thing or do they refer to different concepts. What are messages anyways ?
Understand if there is a difference between method invocations and message passing.
