Categories:
.NET (357)
C (330)
C++ (183)
CSS (84)
DBA (2)
General (7)
HTML (4)
Java (574)
JavaScript (106)
JSP (66)
Oracle (114)
Perl (46)
Perl (1)
PHP (1)
PL/SQL (1)
RSS (51)
Software QA (13)
SQL Server (1)
Windows (1)
XHTML (173)
Other Resources:
How are Observer and Observable used?
How are Observer and Observable used?
✍: Guest
Objects that subclass the Observable class maintain a list of observers. When an Observable object is updated, it invokes the update() method of each of its observers to notify the observers that it has changed state. The Observer interface is implemented by objects that observe Observable objects.
2012-05-31, 2574👍, 0💬
Popular Posts:
How To Use "IF" Statements on Multiple Conditions? - Oracle DBA FAQ - Understanding PL/SQL Language ...
How To Merge Values of Two Arrays into a Single Array? - PHP Script Tips - PHP Built-in Functions fo...
How to set a HTML document's background color? document.bgcolor property can be set to any appropria...
How To Enter Boolean Values in SQL Statements? - MySQL FAQs - Introduction to SQL Basics If you want...
Describe different elements in Static Chart diagrams ? Package: - It logically groups element of a U...