Objective-C:AddressBook

AddressBook.m

 #import <Foundation/Foundation.h>

@interface AddressCard:NSObject{
	NSString *name;
	NSString *email;
}
-(void) setName:(NSString *) theName andEmail:(NSString*) theEmail;
-(void) setName:(NSString *) theName;
-(void) setEmail:(NSString *) theEmail;
-(NSString*) name;
-(NSString*) email;
-(BOOL) isEqual:(AddressCard *) theCard;
-(void) print;
@end

@implementation AddressCard
-(void) setName:(NSString *) theName andEmail:(NSString*) theEmail{
	name = theName;
	email = theEmail;
}
-(void) setName:(NSString*) theName{
	name = theName;
}
-(void) setEmail:(NSString*) theEmail{
	email= theEmail;
}
-(NSString*) name{
	return name;
}
-(NSString*) email{
	return email;
}
-(BOOL) isEqual:(AddressCard *) theCard{
	if ([name isEqualToString: [theCard name]] == YES && [email isEqualToString:[theCard email]] == YES)
	{
		return YES;
	}else{
		return NO;
	}
}
-(void) print{
	NSLog(@"===================");
	NSLog(@"|                                               |");
	NSLog(@"|    %-31s  |",[name UTF8String]);
	NSLog(@"|    %-31s  |",[email UTF8String]);
	NSLog(@"|                                               |");
	NSLog(@"===================");
}
@end

@interface AddressBook:NSObject{
	NSString *bookName;
	NSMutableArray *book;
}
-(id) initWithName:(NSString *) name;
-(AddressCard *) lookUp:(NSString *) theName;
-(void) addCard:(AddressCard *) theCard;
-(void) removeCard:(AddressCard *) theCard;
// -(void) sort;
-(int) entries;
-(void) list;
-(void) dealloc;
@end

@implementation AddressBook
-(id) initWithName:(NSString *) name{
	self = [super init];
	if (self)
	{
		bookName = [[NSString alloc] initWithString:name];
		book = [[NSMutableArray alloc] init];
	}
	return self;
}
-(AddressCard *) lookUp:(NSString *) theName{
	int i,cnt=[book count];
	for (i = 0; i < cnt; ++i)
	{
		AddressCard *card = (AddressCard*) [book objectAtIndex:i];
		if ([[card name] caseInsensitiveCompare:theName] == NSOrderedSame)
		{
			return card;
		}
	}
	return nil;
}
-(void) addCard:(AddressCard *) theCard{
	[book addObject: theCard];
}
-(void) removeCard:(AddressCard *) theCard{
	[book removeObjectIdenticalTo: 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]);
	// }
	int i,cnt = [book count];
	for (i = 0; i < cnt; ++i)
	{	
		AddressCard *card = (AddressCard*)[book objectAtIndex:i];
		NSLog(@"%-20s %-32s",[[card name] UTF8String],[[card email] UTF8String]);
	}
	NSLog(@"======================");
}
-(void) dealloc{
	[bookName release];
	[book release];
	[super dealloc];
}
@end

int main(int argc, char const *argv[])
{
	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
	NSString *aName = @"Julia";
	NSString *aEmail = @"[email protected]";
	NSString *bName = @"Tony";
	NSString *bEmail = @"[email protected]";
	NSString *cName = @"Stephen";
	NSString *cEmail = @"[email protected]";
	NSString *dName = @"Jamie";
	NSString *dEmail = @"[email protected]";

	AddressCard *card1 = [[AddressCard alloc] init];
	AddressCard *card2 = [[AddressCard alloc] init];
	AddressCard *card3 = [[AddressCard alloc] init];
	AddressCard *card4 = [[AddressCard alloc] init];

	// AddressBook *myBook = [AddressBook alloc];
	// AddressCard *myCard;

	[card1 setName:aName andEmail:aEmail];
	[card2 setName:bName andEmail:bEmail];
	[card3 setName:cName andEmail:cEmail];
	[card4 setName:dName andEmail:dEmail];

	AddressBook *myBook = [[AddressBook alloc] initWithName:@"Linda's Address Book"];

	NSLog(@"Entries in address book after creation:%i",[myBook entries]);

	[myBook addCard:card1];
	[myBook addCard:card2];
	[myBook addCard:card3];
	[myBook addCard:card4];

	NSLog(@"Entries in address book after adding cards:%i",[myBook entries]);
	[myBook list];

	NSLog(@"LookUp:Stephen");
	AddressCard *searchCard = [myBook lookUp:@"Stephen"];
	if (searchCard != nil)
	{
		[searchCard print];
	}else{
		NSLog(@"Stephen not found!");
	}

	[myBook removeCard:searchCard];
	NSLog(@"Remove Stephen...");
	[myBook list];

	[card1 release];
	[card2 release];
	[card3 release];
	[card4 release];
	[myBook release];
	[pool drain];
	return 0;
}