Program 15.10

[TotalLuck]

Interface file

Code: (Objective-C)

@interface	AddressCard: NSObject
{
	NSString *name;
	NSString *email;
}
@property (copy, nonatomic) NSString *name, *email;

-(void) setName: (NSString *) theName andEmail: (NSString *) theEmail;
-(void) print;
@end

@interface AddressBook : NSObject
{

	NSString *bookName;
	NSMutableArray *book;
}

-(id) initWithName: (NSString *) name;
-(void) addCard: (AddressCard *) theCard;
-(int) entries;
-(void) list;
-(void) dealloc;

@end

[/pre]

implementation

Code: (Objective-C)

@implementation AddressCard

@synthesize name, email;

-(void) setName: (NSString *) theName andEmail: (NSString *) theEmail
{
	self.name = theName;
	self.email = theEmail;
}

-(void) print
{
	NSLog(@"====================================");
	NSLog(@"|											|");
	NSLog(@"|	%-31s	|", [name UTF8String]);
	NSLog(@"|	%-31s	|", [email UTF8String]);
	NSLog(@"|											|");	
	NSLog(@"|											|");	
	NSLog(@"|											|");	
	NSLog(@"|											|");	
	NSLog(@"|			O						O		|");
	NSLog(@"====================================");
	
}


@end



@implementation AddressBook
// set up the Addressbook's name and an empty book

-(id) initWithName: (NSString *) name
{
	self = [super init];
	
	if (self) {
		bookName = [[ NSString	alloc] initWithString: name];
		book = [[NSMutableArray alloc] init];
	}
	
	return self;
}

-(void) addCard: (AddressCard *) theCard
{
	[book addObject: theCard];
}

-(int) entries
{
	return [book count];
}

-(void) list
{
	NSLog(@"=========  Contents of: %@  =========", bookName);
	
	for (AddressCard *theCard in book)
	    NSLog(@"%-20s	%-32s", [theCard.name UTF8String], [theCard.email UTF8String]);
	
	
	NSLog(@"=====================================================");
	
}

-(void) dealloc
{
	[bookName release];
	[book release];
	[super dealloc];
}

@end

[/pre]
Test Program

Code: (Objective-C)

#import <Foundation/NSObject.h>
#import <Foundation/NSString.h>
#import "AddressBook.h"


int main(int argc, char *argv[])
{
    NSAutoreleasePool *pool	= [[NSAutoreleasePool alloc] init];
	NSString *aName = @"Julia Kochan";
	NSString *aEmail = @"jewls337@axlc.com";
	NSString *bName = @"Tony Iannino";
	NSString *bEmail = @"tony.iannino@techfitness.com";
	NSString *cName = @"Stephen Kochan";
	NSString *cEmail = @"steve@kochan-wood.com";
	NSString *dName = @"Jamie Baker";
	NSString *dEmail = @"jbaker@kochan-wood.com";
	

	AddressCard *card1 = [[ AddressCard alloc] init];
	AddressCard *card2 = [[ AddressCard alloc] init];
	AddressCard *card3 = [[ AddressCard alloc] init];
	AddressCard *card4 = [[ AddressCard alloc] init];
	
	// set up Four addressCards
	
	[card1 setName: aName andEmail: aEmail];
	[card2 setName: bName andEmail: bEmail];
	[card3 setName: cName andEmail: cEmail];
	[card4 setName: dName andEmail: dEmail];
	
	AddressBook *myBook = [ AddressBook alloc];
		
	// Now initialize the Adress Book
	myBook = [ myBook initWithName:@"L=inda's Address Book"];
	
	NSLog (@"Entries in Address Book after creation: %i", [myBook entries]);
	
	//add some cards to the address book
	[myBook addCard: card1];
	[myBook addCard: card2];
	[myBook addCard: card3];
	[myBook addCard: card4];
	
	NSLog (@"Entries in Address Book after adding cards: %i", [myBook entries]);
	
	// list all the entries in the book
	
	
	[myBook list];
	
		
	[card1 release];
	[card2 release];
	[card3 release];
	[card4 release];
	
	[pool drain];
	
	return 0;
	
}

[/pre]

[Shifty]

Code: (Objective-C)

@interface AddressBook : NSObject
{

	NSString *bookName;
	NSString *book;
}

NSString *book should be NSMutableArray *book.