Address Book: C ++ implementation

 

// Keep the source author and other relevant information for any source code reprinted.

// Author: chlaws

// Running environment: Visual Studio 2008

// Project: Address Book

// Description: it can be used as a project design or graduation thesis.

// Note: the original ideas are not provided here. If you do not know how to ask during reading

// Main. CPP <br/> # ifndef headfile <br/> # define headfile <br/> # include <iostream> <br/> # include <string> <br/> # include <algorithm> <br/> # include <fstream> <br/> # include <list> <br/> # include <Io. h> <br/> # include <iterator> <br/> # include <cassert> <br/> # include <sstream> <br/> using namespace STD; <br/> # endif <br/> # include "telbook. H "<br/> # include" contacts. H "<br/> int main () <br/>{< br/> telbook A1 (" ASD. dat "); <br/> a1.menu (); </P> <p> return 0; <br/>} 

 

// Contacts. h <br/> # ifndef headfile <br/> # define headfile <br/> # include <iostream> <br/> # include <string> <br/> # include <algorithm> <br/> # include <fstream> <br/> # include <list> <br/> # include <Io. h> <br/> # include <iterator> <br/> # include <cassert> <br/> # include <sstream> <br/> using namespace STD; <br/> # endif <br/> # ifndef _ contacts_h _ <br/> # DEFINE _ contacts_h _ <br/> class contacts <br/> {<br/>/ /friend Telbook; <br/> Public: <br/> contacts (): _ name (""), _ ADDR (""), _ qqnum (""), _ telnum ("") {}< br/> contacts (string name, string ADDR, string qqnum, string telnum) <br/>: _ name (name ), _ telnum (telnum), _ qqnum (qqnum), _ ADDR (ADDR) {}< br/> contacts (char * Name, char * ADDR, char * qqnum, char * telnum) <br/>: _ name (name), _ telnum (telnum), _ qqnum (qqnum), _ ADDR (ADDR) {}< br/> contacts (const contacts & RHs) <br/>: _ name (RHS. _ name), _ ADDR (R HS. _ ADDR), _ qqnum (RHS. _ qqnum), _ telnum (RHS. _ telnum) {}< br/> contacts & operator = (const contacts & RHs) <br/>{< br/> _ name = RHS. _ name; <br/> _ ADDR = RHS. _ ADDR; <br/> _ qqnum = RHS. _ qqnum; <br/> _ telnum = RHS. _ telnum; <br/> return * This; <br/>}< br/> void initcontacts () <br/> {<br/> cout <"Start input contacts info/N" <"name:"; <br/> CIN> _ name; <br/> cout <"/ntel:"; <br/> CIN >>_telnum; <br/> cout <"/nqq:"; <B R/> CIN >>_qqnum; <br/> cout <"/naddr:"; <br/> CIN >>_addr; <br/> cout <"end input contacts info/N" <Endl; <br/>}< br/> // Operator name <br/> string getname () <br/>{< br/> return _ name; <br/>}< br/> const char * getname () const <br/> {<br/> return _ name. c_str (); <br/>}< br/> void setname (string name) <br/>{< br/> _ name = Name; <br/>}< br/> void setname (char * Name) <br/>{< br/> _ name = Name; <br/>}< br/> // o Perator telephone number <br/> string gettelnum () <br/>{< br/> return _ telnum; <br/>}< br/> const char * gettelnum () const <br/>{< br/> return _ telnum. c_str (); <br/>}< br/> void settelnum (string telnum) <br/>{< br/> _ telnum = telnum; <br/>}< br/> void settelnum (char * telnum) <br/>{< br/> _ telnum = telnum; <br/>}< br/> // opeartor address <br/> string getaddr () <br/>{< br/> return _ ADDR; <br/>}< br/> const char * geta DDR () const <br/>{< br/> return _ ADDR. c_str (); <br/>}< br/> void setaddr (string ADDR) <br/>{< br/> _ ADDR = ADDR; <br/>}< br/> void setaddr (char * ADDR) <br/>{< br/> _ ADDR = ADDR; <br/>}< br/> // operator QQ number <br/> string getqqnum () <br/>{< br/> return _ qqnum; <br/>}< br/> const char * getqqnum () const <br/> {<br/> return _ qqnum. c_str (); <br/>}< br/> void setqqnum (string qqnum) <br/>{< br/> _ qqnum = qqnum; <br/>}< B R/> void setqqnum (char * qqnum) <br/>{< br/> _ qqnum = qqnum; <br/>}< br/> friend ostream & operator <(ostream & OS, const contacts & RHs ); <br/> friend istream & operator> (istream & is, contacts & RHs); <br/> friend fstream & operator> (fstream & in, contacts & RHs ); <br/> friend fstream & operator <(fstream & out, const contacts & RHs); <br/> ~ Contacts () {}< br/> PRIVATE: <br/> string _ name; // name <br/> string _ ADDR; // contact address <br/> string _ qqnum; // QQ number <br/> string _ telnum; // phone number <br/>}; <br/> # endif 

 

// Contacts. CPP <br/> # include "contacts. H "<br/> ostream & operator <(ostream & OS, const contacts & RHs) <br/>{< br/> OS <" Name: "<RHS. _ name <"/N" <br/> <"Tel:" <RHS. _ telnum <"/tqq:" <RHS. _ qqnum <br/> <"/N" <"ADDR:" <RHS. _ ADDR <Endl; <br/> return OS; <br/>}< br/> istream & operator> (istream & is, contacts & RHs) <br/>{< br/> cout <"Enter name:"; <br/> is> RHS. _ name; <br/> cout <Endl; <br/> cout <"Enter the phone number:"; <br/> is> RHS. _ telnum; <br/> cout <Endl; <br/> cout <"Enter the QQ number:"; <br/> is> RHS. _ qqnum; <br/> cout <Endl; <br/> cout <"Enter the contact address:"; <br/> is> RHS. _ ADDR; <br/> return is; <br/>}< br/> fstream & operator> (fstream & in, contacts & RHs) <br/>{< br/> string line = ""; <br/> Getline (in, line); <br/> If (line. size () = 0) Return in; <br/> istringstream upstream stream (line); <br/> upstream stream> RHS. _ name> RHS. _ telnum> RHS. _ qqnum> RHS. _ ADDR; </P> <p> return in; <br/>}< br/> fstream & operator <(fstream & out, const contacts & RHs) <br/>{< br/> out <RHS. _ name <"/t" <RHS. _ telnum <"/t" <RHS. _ qqnum <"/t" <RHS. _ ADDR <"/N"; <br/> return out; <br/>} 

 

 

// Telbook. h <br/> # ifndef headfile <br/> # define headfile <br/> # include <iostream> <br/> # include <string> <br/> # include <algorithm> <br/> # include <fstream> <br/> # include <list> <br/> # include <Io. h> <br/> # include <iterator> <br/> # include <cassert> <br/> # include <sstream> <br/> using namespace STD; <br/> # endif <br/> # ifndef _ telbook_h _ <br/> # DEFINE _ telbook_h _ <br/> # include "contacts. H "<br/> class telboo K <br/>{< br/> Public: <br/> telbook (char * fname): _ fname (fname) <br/>{< br/> Init (fname); <br/>}< br/> telbook (string fname = ""): _ fname (fname) <br/>{< br/> Init (fname. c_str (); <br/>}< br/> void initbook () <br/>{< br/> string fname; <br/> cout <"input file name:"; <br/> CIN> fname; <br/> Init (fname. c_str (); <br/>}< br/> ~ Telbook () <br/>{< br/> If (wflag) <br/> endwrite (); <br/>}< br/> bool modify (); // search for the name, find the information of the entire contact to be modified, and modify the information. If not found, an error is returned. <br/> void add (); <br/> int search (); <br/> bool remove (); <br/> void showall (); <br/> void showsingle (INT index); <br/> void menu (); // function menu <br/> string getfilename (); <br/> PRIVATE: <br/> void Init (const char * fname ); <br/> void startload (); <br/> void endwrite (); <br/> int searchbyname (); <br/> int searchbyphone (); </P> <p>/Data <br/> int wflag; // identifies the number of writes, write data only after the operation is completed <br/> // The initial value is 1, and the value is reduced by 1 to 0. If no data is written, write data to the function by calling the destructor; </P> <p> int sflag; // used to identify whether the file is to be loaded to the list. 0 does not need to be loaded, and 1 needs to be loaded. <br/> fstream _ FIO; <br/> string _ fname; <br/> List <contacts> _ ltel; <br/>}; <br/> # endif 

 

 

 

// Telbook. CPP <br/> # include "telbook. H "<br/> # include <windows. h> <br/> bool telbook: Modify () // locate the contact name, locate the contact information, and modify the information. If not found, an error is returned. <br/>{< br/> cout <"Modify contacts info by find [old name] Then do it! "<Endl; <br/> int selnum; <br/> string tmpvalue; </P> <p> int Index = searchbyname (); <br/> If (Index =-1) <br/>{< br/> return false; <br/>}< br/> List <contacts> :: iterator it = _ ltel. begin (); <br/> advance (it, index); <br/> string mprompt = "select choice! /N1. modify the name. /N2. modify the phone number. /N3. modify the QQ number. /n4. modify the address. /n5. modify all "; <br/> cout <mprompt <Endl <" select: "; <br/> CIN> selnum; <br/> switch (selnum) <br/> {<br/> case 1: // modify name <br/> cout <"input new name :"; <br/> CIN> tmpvalue; <br/> it-> setname (tmpvalue); <br/> break; <br/> case 2: // modify telephone number <br/> cout <"input new telephone number:"; <br/> CIN> tmpvalue; <br/> it-> settelnum (tmpvalue); <br/> brea K; <br/> case 3: // modify QQ number <br/> cout <"input new QQ number:"; <br/> CIN> tmpvalue; <br/> it-> setqqnum (tmpvalue); <br/> break; <br/> case 4: // Modify address <br/> cout <"input new address"; <br/> CIN> tmpvalue; <br/> it-> setaddr (tmpvalue ); <br/> break; <br/> case 5: // modify all <br/> cout <"input new name:"; <br/> CIN> tmpvalue; <br/> it-> setname (tmpvalue); <br/> cout <"input new telephone numb Er: "; <br/> CIN> tmpvalue; <br/> it-> settelnum (tmpvalue); <br/> cout <" input new QQ number :"; <br/> CIN> tmpvalue; <br/> it-> setqqnum (tmpvalue); <br/> cout <"input new address "; <br/> CIN> tmpvalue; <br/> it-> setaddr (tmpvalue); <br/> break; <br/> default: <br/> cout <"Choice error" <Endl; <br/> return false; <br/>}< br/> return true; <br/>}< br/> void telbook: add () <br/>{< br/> contacts item; <br/> Ci N> item; <br/> _ ltel. push_back (item); <br/>}< br/> int telbook: Search () // provides two query methods, find the output contact details <br/>{< br/> int retnum =-1; // Save the returned value. <br/> int selnum; <br/> string sprompt = "select choice! /N1. search by name. /N2. search by phone number. "; <br/> cout <sprompt <Endl; <br/> CIN> selnum; <br/> switch (selnum) <br/>{< br/> case 1: <br/> retnum = searchbyname (); <br/> break; <br/> case 2: <br/> retnum = searchbyphone (); <br/> break; <br/> default: <br/> cout <"select error/N" <Endl; <br/> retnum =-1; <br/> break; <br/>}< br/> // cout <"retnum =" <retnum <Endl; <br/> return retnum; <br/>}< br/> bool telbook: Remove () <br/ >{< Br/> int selnum; <br/> string sprompt = "select choice (only remove one item )! /N1. Delete the entire item by name. /N2. Delete the entire item by phone number. /N3. Delete the entire item "; <br/> cout <sprompt <Endl; <br/> CIN> selnum; </P> <p> int index; // used to save the index number of the item to be deleted in the list </P> <p> switch (selnum) <br/>{< br/> case 1: <br/> Index = searchbyname (); <br/> break; <br/> case 2: <br/> Index = searchbyphone (); <br/> break; <br/> case 3: <br/> cout <"You shocould inuput index range is: from 1 to "; <br/> cout <_ ltel. size () <Endl; <br/> cout <"input inde X: "; <br/> CIN> index; <br/> assert (index> 0) & (index <= static_cast <int> (_ ltel. size (); <br/> Index = index-1; // It is used to keep the same index as the list. for example, the index of Item 1 is 0 in the list <br/> break; <br/> default: <br/> cout <"Choice error! /N "<Endl; <br/> return false; <br/>}< br/> List <contacts >:: iterator it = _ ltel. begin (); <br/> If (Index =-1) <br/>{< br/> return false; <br/>}< br/> advance (it, index); <br/> _ ltel. erase (it); <br/> return true; <br/>}< br/> void telbook: showall () <br/>{< br/> ostream_iterator <contacts> out (cout, "/N"); <br/> copy (_ ltel. begin (), _ ltel. end (), OUT); <br/>}< br/> void telbook: showsingle (INT index) <br/>{< br/> in T tmpindex = index; </P> <p> List <contacts>: iterator it = _ ltel. Begin (); <br/> while (tmpindex -- & it! = _ Ltel. end () <br/> it ++; <br/> cout <* It <Endl; <br/>}< br/> inline string telbook :: getfilename () <br/>{< br/> return _ fname; <br/>}< br/> void telbook: Init (const char * fname) <br/>{< br/> _ ltel. clear (); <br/> // check whether the test file exists. If yes, It is loaded into the list. If no, a new file is created. <br/> If (_ access (fname, 0) =-1) <br/>{< br/> cout <"file not existing, will create! "<Endl; <br/> _ FIO. open (fname, IOS: Out); // create a file. The access mode is write <br/> cout <"you shoud appending new contacts to list" <Endl; <br/> sflag = 0; <br/>}< br/> else <br/> {<br/> _ FIO. open (fname, IOS: In | IOs: Out); <br/> _ FIO. seekg (0, ios_base: End); </P> <p> If (! _ FIO. tellg () <br/>{< br/> cout <"you shoud appending new contacts to list" <Endl; <br/> sflag = 0; <br/>}< br/> else <br/> sflag = 1; <br/> _ FIO. seekg (0, ios_base: Beg); <br/>}< br/> wflag = 1; <br/>}< br/> void telbook: startload () <br/>{< br/> contacts item; <br/> _ FIO. seekg (0); <br/> while (_ FIO> item) // Q: If _ FIO. EOF is used as a condition. I do not know why I will read the last record again each time. <br/>{< br/> _ ltel. push_back (item); <br/>}< br/> void telboo K: endwrite () <br/>{< br/> _ FIO. close (); <br/> _ FIO. clear (); <br/> _ FIO. open (_ fname. c_str (), ios_base: Out | ios_base: trunc); <br/> contacts item; <br/> List <contacts >:: iterator it = _ ltel. begin (); <br/> while (it! = _ Ltel. end () <br/>{< br/> item = * it; <br/> _ FIO <item; <br/> it ++; <br/>}< br/> _ FIO. close (); <br/>}< br/> int telbook: searchbyname () <br/>{< br/> string name; <br/> cout <"input name:"; <br/> CIN> name; </P> <p> List <contacts> :: iterator it = _ ltel. begin (); <br/> // It = find_if (_ ltel. begin (), _ ltel. end (), predbyname); <br/> while (it! = _ Ltel. end () <br/>{< br/> If (IT-> getname (). compare (name) = 0) // find the matching element and exit <br/> break; <br/> it ++; <br/>}</P> <p> If (IT = _ ltel. end () <br/> return-1; <br/> else <br/> return distance (_ ltel. begin (), it); <br/>}< br/> int telbook: searchbyphone () <br/>{< br/> string telnum; // phone number <br/> cout <"Input Telephone number:"; <br/> CIN> telnum; </P> <p> List <contacts> :: iterator it = _ ltel. begin (); <br/> // It = fin D_if (_ ltel. Begin (), _ ltel. End (), predbyname); <br/> while (it! = _ Ltel. end () <br/>{< br/> If (IT-> gettelnum (). compare (telnum) = 0) // find the matching element and exit <br/> break; <br/> it ++; <br/>}</P> <p> If (IT = _ ltel. end () <br/> return-1; <br/> else <br/> return distance (_ ltel. begin (), it); <br/>}< br/> void telbook: menu () <br/> {<br/> // determines whether to load information from the file <br/> If (sflag = 1) <br/> startload (); <br/> else if (sflag = 0) <br/> cout <"no contacts info in file! "<Br/> <" you should select 1 to add! "<Endl; <br/> int Pos = 0; <br/> int selnum =-1; <br/> string sprompt = "select choice/N1. Add/N2. delete/N3. search/n4. display/n5. Modify/N6. exit/nselect :"; <br/> while (1 & (selnum! = 6) <br/>{< br/> cout <sprompt <Endl; <br/> CIN> selnum; <br/> switch (selnum) <br/>{< br/> case 1: // Add <br/> Add (); <br/> continue; <br/> case 2: // Delete <br/> If (remove () = false) <br/> cout <"Remove error! "<Endl; <br/> continue; <br/> case 3: // search <br/> Pos = search (); <br/> If (Pos =-1) <br/>{< br/> cout <"not find/N" <Endl; <br/> continue; <br/>}< br/> else <br/>{< br/> showsingle (POS); <br/> continue; <br/>}< br/> continue; <br/> case 4: // display <br/> showall (); <br/> continue; <br/> case 5: // modify <br/> If (modify () = false) <br/> cout <"modification failed" <Endl; <br/> else <br/> cout <"modified successfully" <Endl; <br/> continue; <br /> Case 6: // exit <br/> cout <"exited" <Endl; <br/> break; <br/> default: <br/> cout <"Choice error! Select again! "<Endl; <br/>}< br/>}