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iOS Build a Blog Reader iPhone App Exploring the Master-Detail Template Modifying the Master-Detail Template

Posted by thiagobarbosa
thiagobarbosa
1,151 Points

Initialization

Why I do have to alloc and init NSArray but not NSString? NSArray * booksArray = [NSArray arrayWithObjects: @"Hamlet", @"King Lear", @"Othello", @"Macbeth", nil]; NSString * bookTitle = [booksArray objectAtIndex:2];

2 Answers

Holger Liesegang
Holger Liesegang
50,595 Points
Holger Liesegang
Holger Liesegang
50,595 Points

Hi thiagobarbosaabout,

because NSStrings are used so often there exists a literal syntax version (short version) for the NSString Class where @"string" equals [[NSString alloc] initWithString:(NSString *)aString].

You can find some more info at Strings Are Represented by Instances of the NSString Class and it states "There are various ways to create NSString objects, including standard allocation and initialization, class factory methods or literal syntax".

Kind Regards Holger

thiagobarbosa
thiagobarbosa
1,151 Points
thiagobarbosa
thiagobarbosa
1,151 Points

Holger, thank you for you help. I'll read it right now.