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:
What are some alternatives to inheritance?
What are some alternatives to inheritance?
✍: Guest
Delegation is an alternative to inheritance. Delegation means that you include an instance of another class as an instance variable, and forward messages to the instance. It is often safer than inheritance because it forces you to think about each message you forward, because the instance is of a known class, rather than a new class, and because it doesn't force you to accept all the methods of the super class: you can provide only the methods that really make sense. On the other hand, it makes you write more code, and it is harder to re-use (because it is not a subclass).
2013-06-19, 1968👍, 0💬
Popular Posts:
What is the version information in XML? “version” tag shows which version of XML is used.
What is the significance of Finalize method in .NET? .NET Garbage collector does almost all clean up...
Can Multiple Cursors Being Opened at the Same Time? - Oracle DBA FAQ - Working with Cursors in PL/SQ...
What is the difference between delegate and events? ã Actually events use delegates in bottom. But ...
How To Enter a New Row into a Table Interactively? - Oracle DBA FAQ - Introduction to Oracle SQL Dev...