Phone Book Map Demo

PhoneBook.cpp

//Phone book example using std map
#include <iostream>
#include <string>
#include <map>

using namespace std;
using std::string;

class TPhoneBook{
private:
	//Hold the phone data
	std::map<string, string>Data;
public:
	//Used to serach the map
	std::map<string, string>::iterator it;
	//Add new contact to the phone book
	void add_contact(std::string name, std::string phone){
		//Set map data
		Data[name] = phone;
	}

	void edit_contact(std::string name, std::string phone){
		//Find the name in the data map
		it = Data.find(name);
		//Not there so display errror
		if (it == Data.end()){
			std::cout << name << " was not found in the phone book." << std::endl;
		}
		else{
			//Update the phone number
			Data[name] = phone;
		}
	}

	void delete_contact(std::string name){
		//Locate name in the Data map
		it = Data.find(name);
		//Not there so display error
		if (it == Data.end()){
			std::cout << "[Delete Contact]" << std::endl;
			std::cout << name << " was not found in the phone book." << std::endl;
		}
		else{
			//Remove the item from the Data map
			Data.erase(it);
		}
	}

	void find_phone_byName(std::string name){
		//Find name in the Data map
		it = Data.find(name);
		//Not found so display error
		if (it == Data.end()){
			std::cout << name << " was not found in the phone book." << std::endl;
		}
		else{
			//Display phone contact found data
			std::cout << std::endl << "[Found Record]" << std::endl;
			std::cout << "Name   : " << it->first << std::endl;
			std::cout << "Phone  : " << it->second << std::endl;
			std::cout << "--------------------------" << std::endl;
		}
	}

	//Show all records in the phone book.
	void display_all(void){
		//Display all the pnone contacts in the Data map
		std::cout << "[Records]" << std::endl;
		for (it = Data.begin(); it != Data.end(); it++){
			std::cout << "Name   : " << it->first << std::endl << "Phone  : " <<
				it->second << std::endl;
			std::cout << "--------------------------" << std::endl;
		}
	}
};


int main(){
	//Create the phone book class
	TPhoneBook book;
	//Add some contacts
	book.add_contact("Paul", "0800-123456");
	book.add_contact("Zoe", "7895-4578961");
	book.add_contact("Ben", "1234-456789");
	//Show all contacts
	book.display_all();
	//Edit contact Paul phone number
	book.edit_contact("Paul", "01252 710992");
	//Locate Paul in the phone book and show his record
	book.find_phone_byName("Paul");
	//Remove the contact Zoe
	book.delete_contact("Zoe");
	//Show all phone contacts agian
	book.display_all();
	return 0;
}