The attaced files are the starter code that presents some of the concepts needed

Question

The attaced files are the starter code that presents some of the concepts needed to complete Lab. Pay particular attention to M.I.L. - Member Initialization List

__________________________letter.h___________________________________

#ifndef LETTER_H

#define LETTER_H

#include "address.h"

#include <string>

#include <fstream>

using namespace::std;

class letter

{

public:

letter(void);

letter(const letter &);

letter(const address & sentBy, const address & sentTo, double theWeight);

letter(const string & senderName, const string & senderZip,

const string & toName, const string & toZip,

double theWeight);

~letter(void);

address getSender(void) const;

address getTo(void) const;

double getWeight(void) const;

string getSenderName(void) const;

string getSenderZip(void) const;

string getToName(void) const;

string getToZip(void) const;

letter & setSender(const address &);

letter & setTo(const address &);

letter & setWeight(double);

const letter & operator = (const letter & right);

double getPostageCost(void) const; // assume NO ERROR CONDITIONS

/*

Weight Not Over Rates

(ounces)

1 0.44

2 0.61

3 0.78

3.5 0.95

*/

void print(ostream &) const;

// output will be of the form:

// From:

// John Wilson

// 66210

// To:

// Mary Jones

// 66212

// Cost: $0.95

private:

address from;

address to;

double weight; // weight in ounces

};

#endif

__________________________________address.h________________________

#ifndef ADDRESS_H

#define ADDRESS_H

#include <string>

#include <iostream>

using namespace::std;

class address

{

public:

address(void);

address(const address &);

address(const string & theName, const string & theZip);

~address(void);

string getName(void) const;

string getZip(void) const;

address & setName(const string & theName);

address & setZip(const string & theZip);

const address & operator=(const address & right);

void print(ostream &) const;

// output will be of the form:

// John Wilson

// 66210

private:

string name;

string zip;

};

#endif

Explanation / Answer

letter::letter(void)
{
cout<<"Contents in letter";
   this->weight=0.0;
   this->to=address();
   this->from=address();
}
letter::letter(const letter & obj)
{
   cout<<"copy of letter";
   this->weight=obj.weight;
   this->to=obj.to;
   this->from=obj.from;
}
letter::~letter(void)
{
   cout<<"Freeing memory";
  
}
letter::letter(const address & sentBy, const address & sentTo, double theWeight)
{
   this->weight=theweight;
   this->to=sentTo;
   this->from=sentBy;  
}
letter ::letter(const string & senderName, const string & senderZip,
const string & toName, const string & toZip,
double theWeight);
{
   this->weight=theweight;
   this->to=address(toName,toZip);
   this->from=address(senderName,senderZip);
  
}
address letter::getSender(void) const
{
return this->from;
}
address letter ::getTo(void) const
{
   return this->to;
}
double letter::getWeight(void) const
{
   return this->weight;
}
string letter:: getSenderName(void) const
{
   return this->from.getName();
}
string letter ::getSenderZip(void) const
{
  
}
string letter :: getToName(void) const
{
   return this->to.getName();
}
string letter :: getToZip(void) const
{
   return this->to.getZip();
}
letter & letter::setSender(const address &sender)
{
   this->from=sender;
   return *this;
}
letter & letter :: setTo(const address &to)
{
   this->to=to;
   return *this;
}
letter & letter::setWeight(double)
{
   this->weight=weight;
   return *this;
}
const letter & letter ::operator = (const letter & right)
{
   this->from=right.from;
   this->to=right.to;
   this->weight=right.weight;
    return *this;
}
double letter ::getPostageCost(void) const
{
   if(weight<1.0)
       return 0.44;  
   elseif(weight < 2.0)
       return 0.61;
   elseif(weight < 3.0)
       return 0.78;
   else
       return 0.95;
}
void letter ::print(ostream &output) const
{
   output<<"FROM:"<<endl;
   this->from.print(output);
   output<<endl<<"TO:"<<endl;
   this->to.print(output);
   output<< endl;

}

address::address(void)
{
   this->name="";
   this->zip="";
}
address::address(const address &obj)
{
   this->name=obj.name;
   this->zip=obj.zip;
}
address:: address(const string & theName, const string & theZip);
{
   this->name=thename;
   this->zip=thezip;  
}
address:: ~address(void)
{
cout<<"free ";
}
string address::getName(void) const
{
   return this->name;
}
string address:: getZip(void) const
{
   return this->zip;
}
address & address:: setName(const string & theName)
{
   this->name=theName;
   return *this;
}
address & address:: setZip(const string & theZip)
{
   this->zip=thezip;
   return *this;
}
const address & address :: operator=(const address & right)
{
   this->name=right.name;
   this->zip=right.zip;
   return *this;
}
void address ::print(ostream &output) const
{
   output << "Name :"<<endl;
   this->name.print(output);
   output<< "Zip:"<<endl;
   this->zip.print(output);
}

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