Re: Noob question regarding Cocoa objects.
Re: Noob question regarding Cocoa objects.
- Subject: Re: Noob question regarding Cocoa objects.
- From: "David Symonds" <email@hidden>
- Date: Tue, 28 Nov 2006 14:22:03 +1100
On 11/28/06, dan <email@hidden> wrote:
I'm learning objective-c with Cocoa coming from a Java background. Have
some questions to make sure I'm on the right track.
-------------------------------
1-I'm thinking an objective-c object's init method is basically
equivalent to a Java's class constructor?
Almost; the combination of the 'alloc' message and the 'init' message
are closer to being the equivalent.
-------------------------------
2-By calling init (To initialize an object) it reaches the top most
object (NSObject) while executing all the init in the object tree?
Let's say there's objects A through Z, and Z inherits from NSObject.
So [a init] will call init inside B through NSObject?
Usually, yes. It will be up to each class to propogate the 'init'
message, and normally they should have a [super init] call inside
their own init method.
-------------------------------
3-Guessing my own objects (That I created) does not have to have an
"init" - but it could be labeled as "initWithParam", etc. But I would
have to create a logic that calls the super class init?
Yes.
Dave.
--
"Strange women lying in ponds distributing swords
is no basis for a system of government."
_______________________________________________
Cocoa-dev mailing list (email@hidden)
Do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden