Design patterns

[Krishna Tota]

Hello friens,

Please wxplain this in brief.

Presently we are developing a classified by using Struts that has components like Eventcalender,Housing, Jobs, sale etc .And My Module is Housing.
Housing has internel components like House for sale, house for rent etc

Can any one explain What are the desine patterns i need to use for this.

And How many DAO's i need to use.
Thanks,
Krishna Tota

[Paul Sturrock]

Can any one explain What are the desine patterns i need to use for this

That depends on what you are trying to do. Have a read through the Sun documentation on design patterns. See if any are appropriate.

And How many DAO's i need to use.

One per managed object is the usual.