Question

Possible Duplicate:
NSString retain Count

I am the beginner for iPhone programming. I am dealing with NSString. I got a doubt explained below.

@implementation Sample;

NSString *str;

-(void)viewDidLoad
{
    str = [[NSString alloc] initWithString:@"Hello"];

    // Why retain count is some random value? (Eg.2147234)
    NSLog(@"retain count of string %d",[str retainCount]);

    [str release];
}

-(void)printString
{
    // Why the value for "str" getting printed here,
    // though its released in viewDidLoad?
    NSLog(@"string is %@",str);
}

Answer 1

1. Don’t look at retainCount. It’ll confuse you, and it doesn’t help.

2. Constant strings are built right into the code — they’re never allocated or released. It’s fine for you to retain and release them as you would any other object, but don’t expect a constant string to be deallocated at any point.