Re: Allocate memory for object

FROM : Jonathan Jackel
DATE : Sat Dec 11 18:34:12 2004

I suspect the problem is in your Word class.  This should work:

NSMutableArray *myArray = [[NSMutableArray alloc] init];
NSString *word;

word = @"test0"
[myArray addObject:word];

word = @"test1"
[myArray addObject:word];

NSLog(@"Word 0: %@\nWord 1: %@", [myArray objectAtIndex:0], [myArray
objectAtIndex:1]);


I second Jonathon Mah's comments on your memory issues.  It's possible
that you are not implementing setWord: or getWord properly because you
don't understand memory management yet.  We might be able to help if we
saw that code.

Jonathan


On Dec 11, 2004, at 4:53 AM, Apirak wrote:

> Hello,
>
> I try to add two object to myArray by one variable. my source code is
> look like this
>
>     NSMutableArray *myArray = [[NSMutableArray alloc] init];
>     
>     Word *word;
>         
>     word = [[Word alloc] init];
>     [word setWord:@"test"];
>     [myArray addObject:word];
>     
>     word = nil;
>     word = [[Word alloc] init];
>     [word setWord:@"test2"];
>     [myArray addObject:word];
>     
>     Word *wd = [[myArray objectAtIndex:0] retain];
>     NSLog(@"word equal %@", [wd getWord]);
>     
>     wd = [[myArray objectAtIndex:1] retain];
>     NSLog(@"word equal %@", [wd getWord]);
>
> the result is
>
> word equal test2
> word equal test2
>
> but It should be
>
> word equal test
> word equal test2
>
> I am java developer, it very hard to deal with vector :(
>
> Apirak Panatkool
>
> e-mail: <email_removed>
> phone: 01-4033320
>
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