Create a simple Address Book

1, define contact human addresscontact. Instance variables: Name, gender, phone number, address, group name. Method: Customize the initialization method (name, phone number), display contact information

2, define the variable array in main.m, manage the contact person. You can add a new contact object, and if the name or phone number is empty, the print add fails.

3. Get all the contacts under a group.

4. Search for contacts by phone number.

5. Get all female contacts

6. Delete Contacts by name

7. Delete a group all contacts

8. Show all contacts in Address Book

9, choose to do: Define the AddressBook class, encapsulating the above functions.

Main.m

Create an Address Book object

AddressBook * book = [[AddressBook alloc] init];

Addresscontact * P1 = [[Addresscontact alloc] initwithname:@ "Xiao Ming" sex:@ "male" Phonenum: @ "12345566" address:@ "Long Dong da Dao" GroupName : @ "classmate"];

[Book ADDPERSON:P1];

[Book Showaddressbook];

[Book getpersonwithgroupname:@ "classmate"];

[Book removepersonwithgroupname:@ "classmate"];

[Book Showaddressbook];

Create Class-addresscontact.h

#import <Foundation/Foundation.h>

@interface Addresscontact:nsobject

@property (nonatomic,retain) nsstring * name;

@property (nonatomic,retain) nsstring * sex;

@property (nonatomic,retain) NSString * phonenum;

@property (Nonatomic,retain) NSString * address;

@property (nonatomic,retain) NSString * GROUPNAME;

-(ID) Initwithname: (NSString *) name sex: (NSString *) Sex Phonenum: (nsstring*) Phonenum Address: (NSString *) address GroupName: (NSString *) groupName;

1, define contact human addresscontact. Instance variables: Name, gender, phone number, address, group name. Method: Customize the initialization method (name, phone number), display contact information

-(void) information;

@end

. m

#import "AddressContact.h"

@implementation Addresscontact

-(ID) Initwithname: (NSString *) name sex: (NSString *) Sex Phonenum: (nsstring*) Phonenum Address: (NSString *) address GroupName: (NSString *) groupName

{

self = [super init];

if (self) {

_name = name;

_sex = sex;

_phonenum = Phonenum;

_address = address;

_groupname = GroupName;

}

return self;

}

-(void) information

{

NSLog (@ "%@%@%@%@%@", _name,_sex,_phonenum,_address,_groupname);

}

@end

Create Class-addressbook.h

#import <Foundation/Foundation.h>

#import "AddressContact.h"

@interface Addressbook:nsobject

{

Nsmutablearray *_data;

}

2, define the variable array in main.m, manage the contact person. You can add a new contact object, and if the name or phone number is empty, the print add fails.

-(void) Addperson: (Addresscontact *) per;

3. Get all the contacts under a group.

-(void) Getpersonwithgroupname: (NSString *) groupName;

4. Search for contacts by phone number.

-(void) Getpersonwithphonenum: (NSString *) Phonenum;

5. Get all female contacts

-(void) Getpersonwithsex: (NSString *) sex;

6. Delete Contacts by name

-(void) Removeperson: (Addresscontact *) per;

-(void) Removepersonwithname: (NSString *) name;

7. Delete a group all contacts

-(void) Removepersonwithgroupname: (NSString *) groupName;

Show all contact information

-(void) Showaddressbook;

@end

. m

#import "AddressBook.h"

@implementation AddressBook

-(ID) init

{

self = [super init];

if (self) {

_data = [[Nsmutablearray alloc] init];

}

return self;

}

2, define the variable array in main.m, manage the contact person. You can add a new contact object, and if the name or phone number is empty, the print add fails.

-(void) Addperson: (Addresscontact *) per

{

if ([[per name] length] = = 0 | | [[per phonenum] length] = = 0) {

NSLog (@ "Add failed");

Return

}

[_data Addobject:per];

}

3. Get all the contacts under a group.

-(void) Getpersonwithgroupname: (NSString *) groupName

{

For (Addresscontact * p in _data) {

if ([[[P GroupName] isequaltostring:groupname]) {

[P information];

}

}

}

4. Search for contacts by phone number.

-(void) Getpersonwithphonenum: (NSString *) phonenum

{

For (Addresscontact * p in _data) {

if ([[[P Phonenum] isequaltostring:phonenum]) {

[P information];

}

}

}

5. Get all female contacts

-(void) Getpersonwithsex: (NSString *) Sex

{

For (Addresscontact * p in _data) {

if ([[[P Sex] isequaltostring:sex]) {

[P information];

}

}

}

6. Delete Contacts by name

-(void) Removeperson: (Addresscontact *) per

{

[_data Removeobject:per];

}

-(void) Removepersonwithname: (NSString *) name

{

For (Addresscontact * p in _data) {

if ([[[P name] isequaltostring:name]) {

[Self removeperson:p];

}

}

}

7. Delete a group all contacts

-(void) Removepersonwithgroupname: (NSString *) groupName

{

Nsmutablearray * Delete = [Nsmutablearray array];

For (Addresscontact * p in _data) {

if ([[[P GroupName] isequaltostring:groupname]) {

[Delete addobject:p];

}

}

[_data Removeobjectsinarray:delete];

}

8. Show all contacts in Address Book

-(void) Showaddressbook

{

For (Addresscontact * per in _data) {

[Per information];

}

}

@end

Create a simple Address Book