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Hello jbuilder.java.language people,

Question about keyword "this". As I understood is the keyword this a
reference to the current object.
Suppose I extend a class from JApplet and implement the MouseListener
interface like:

public class Applet1 extends JApplet implements MouseListener{
.....
addMouseListener(this);

public void MousePressed(MouseEvent e) {
 ...}

}


To the method "addMouseListener" you can pass an object reference to
"MouseListener" (the interface).
(documentation method details -> public void addMouseListener(MouseListener
l)
In many examples I see that you can pass the COMPLETE "current object" by
using the keyword "this"
(as in my example), but the method expects (only) a reference to a
MouseListener interface.

My question is:
How does this work. What makes this possible ("this" implemented the
interface MouseListener, but
it is a lot more !).

Thank you in advance for your explanation.

Regards.

B.V. Metaalwarenindustrie
Witte van Moort
Dick Gerrits
dgerrits@wvm.nl

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