Can a class accept a message?

[tenxian]

I want a confirmation.

 

[Daniel Pitts]

I want a confirmation.

That is a very vague question. So the answer is Yes.

public class Message {
}

public class MessageAcceptor {
public static void accept(Message message) {
System.out.println("I accept the message " + message);
}
}

So, what are you really asking?

 

[Mark Space]

I want a confirmation.

This kind of statement comes across as bit rude. Please use a less
demanding tone.


In Java, classes can accept messages, for reasonable definitions of the
word "message".

String.getClass().getName();

sends the message "getName" to the class object for String. One could
also call static methods a message that a class will accept.

Normally however, it's an object that takes the message.

String s = "Hello World\n";
s = s.trim();

sends the message "trim" to the String object "s".


(In object oriented design that I'm familiar with, a "message" is
normally implemented with a method. Other forms of dispatch might
exist, although I can't think of any off the top of my head.)

 

[Roedy Green]

I want a confirmation.

I presume you mean this is the Smalltalk sense.

Of course. All it means is can your execute a method on an object
with parameters.