Classes and redefinition; different basic types help

Hey all i am trying to compile my code but i keep getting "redefinition; different basic types". Here is the error log:

f:\c++2\addressClass\addressClass.cpp(145): error C2556: 'std::string extPersonType::getNumber(void) const' : overloaded function differs only by return type from 'int extPersonType::getNumber(void) const'
f:\c++2\addressClass\addressClass.cpp(35) : see declaration of 'extPersonType::getNumber'
f:\c++2\addressClass\addressClass.cpp(97): error C2371: 'addressType::getZip' : redefinition; different basic types
f:\c++2\addressClass\addressClass.cpp(16) : see declaration of 'addressType::getZip'
f:\c++2\addressClass\addressClass.cpp(145): error C2371: 'extPersonType::getNumber' : redefinition; different basic types
f:\c++2\addressClass\addressClass.cpp(35) : see declaration of 'extPersonType::getNumber'
f:\c++2\addressClass\addressClass.cpp(97): error C2556: 'std::string addressType::getZip(void) const' : overloaded function differs only by return type from 'int addressType::getZip(void) const'

And here is my code that its having problems with:

Code:

#include <string>
#include <assert.h>
#include <iostream>
#include <windows.h>

using namespace std;

class addressType
{
public:
	void printAddress() const;
	void setAddress(string street, string city, string state, int zip);
	string getStreet() const;
	string getCity() const;
	string getState() const;
	int getZip() const;
	addressType(string street = "", string city = "", string state = "", int zip = 0);
	
private:
	string addrStreet;
	string addrCity;
	string addrState;
	int addrZip;
};

class extPersonType
{
public:
	void printPerson() const;
	void setNameNum(string first, string last, int number);
	void setPersonType(string pt);
	string getFirstName() const;
	string getLastName() const;
	string getPersonType() const;
	int getNumber() const;
	extPersonType(string first = "", string last = "", int number = 0000000000);
	
private:
	string firstName;
	string lastName;
	string personType;
	int phoneNumber;
};

string addressType::getZip() const
{
	return addrZip;
}

string extPersonType::getNumber() const
{
	return phoneNumber;
}

I do not really know what i am doing wrong? Any help would be great!

David

Well, do you want the functions to return an 'int' or a 'string'? The compiler is basically just saying "pick one and stick to it".

Yep, i just noticed i had "string" instead of "int.

Code:

string addressType::getZip() const
{
	return addrZip;
}

string extPersonType::getNumber() const
{
	return phoneNumber;
}

to..

Code:

int addressType::getZip() const
{
	return addrZip;
}

int extPersonType::getNumber() const
{
	return phoneNumber;
}

David

I don't think zip codes and phone numbers are really numeric: does it make sense to add two phone-numbers?