10.2
//1.person.h
#ifndef PERSON_H_
#define PERSON_H_
class Person
{
private:
static const int LIMIT = 25;
string lname;
char fname[LLIMIT];
public:
Person(){lname = "";fname[0] = '\0';}
Person(const string & ln, const char * fn = "Heyyou");
void Show() const;
void FormalShow() const;
};
#endif
//person.cpp
#include <iostream>
#include <string>
#include <cstring>
#include "person.h"
using namespace std;
Person::Person(const string &ln, const char *fn)
{
lname = ln;
strcpy(fname, fn);
}
void Person::Show() const
{
cout << "The name is: " << frame << " " << lname << endl;
}
void Person::FormalShow() const
{
cout << "The formal name is: " << lname << " " << fname << endl;
}
//main.cpp
#include <iostream>
#include <string>
#include "person.h"
using namespace std;
int main()
{
Person one;
Person two("symthecraft");
Person three("Dimwiddy", "sum");
cout << "The person one: \n";
one.Show();
one.FormalShow();
cout << endl;
cout << "The person two: \n";
two.Show();
two.FormalShow();
cout << endl;
cout << "The person three: \n";
three.Show();
three.FormalShow();
return 0;
}
10.3
//golf.h
#ifndef GOLF_H_
#define GOLF_H_
class Golf
{
private:
static const int Len = 40;
char fullname[Len];
int handicap;
public:
Golf(const char * name, int hc);
int setgolf();
void sethandicap(int hc);
void showgolf() const;
};
#endif
//golf.cpp
#include <iostream>
#include <cstring>
#include "golf.h"
using namespace std;
Golf::Golf(const char * name, int hc)
{
strcpy(fullname, name);
handicap = hc;
}
int Golf::setgolf()
{
cin.get();
cout << "Enter the fullname: ";
cin.getline(fullname, Len);
if(strlen(fullname) == 0)
return 0;
cout << "Enter the handicap: ";
cin >> handicap;
*this = Golf(fullname, handicap);
return 1;
}
void Golf::sethandicap(int hc)
{
handicap = hc;
}
void Golf::showgolf() const
{
cout << "The fullname: " << fullname << endl;
cout << "The handicap: " << handicap << endl;
}
//main.cpp
#include <iostream>
#include "golf"
using namespace std;
int main()
{
int i = 0;
int n;
cout << "How many members: ";
cin >> n;
while(i < n && ann.setgolf())
{
ann.showgolf();
i++;
}
cout << "Done!" << endl;
return 0;
}
10.4
//namesp.h
#ifndef NAMESP_H_
#define NAMESP_H_
namespace SALES
{
class Sales
{
private:
static const int QUARTERS = 4;
double sales[QUARTERS];
double average;
double max;
double min;
public:
Sales();
Sales(const double ar[], int n);
void setSales();
void showSales() const;
};
}
#endif
//namesp.cpp
#include <iostream>
#include "namesp.h"
using namespace std;
namespace SALES
{
Sales::Sales()
{
double sales[QUARTERS] = {0.0};
double average = 0.0;
double max = 0.0;
double min = 0.0;
}
Sales:: Sales(const double ar[], int n)
{
if(n < QUARTERS)
{
for (int i = 0; i < n; ++i)
sales[i] = ar[i];
for (int i = 0; i < QUARTERS; ++i)
sales[i] = 0;
}
else
for(int i = 0; i < QUARTERS; i++)
sales[i] = ar[i];
double sum = sales[0];
max = sales[0];
min = sales[0];
for(int i = 0; i < QUARTERS; i++)
{
sum += sales[i];
max = max > sales[i] ? max : sales[i];
min = min < sales[i] ? min : sales[i];
}
average = sum / QUARTERS;
}
void Sales::setSales()
{
double sum = 0.0;
cout << "Enter 4 sales quarters: \n";
for(int i = 0; i < QUARTERS; i++)
{
cout << "# " << i + 1 << ": ";
cin >> sales[i];
sum += sales[i];
if(i == 0)
{
max = sales[i];
min = sales[i];
}
else
{
max = max > sales[i] ? max : sales[i];
min = min < sales[i] ? min : sales[i];
}
}
average = sum / QUARTERS;
}
void Sales::showSales() const
{
cout << "The sales: ";
for(int i = 0; i < QUARTERS; i++)
cout << sales[i] << " ";
cout << endl;
cout << "The average: " << average << endl;
cout << "The max: " << max << endl;
cout << "The min: " << min << endl;
}
}
//main.cpp
#include <iostream>
#include "namesp.h"
int main()
{
using namespace std;
using namespace std;
Sales s1;
cout << "The first: \n";
s1.setSales();
s1.showSales();
cout <<endl;
double ar1[] = {5,4,8,6,1};
double ar2[] = {4,7,6};
cout << "The second: \n";
Sales s2(ar1, 5);
s2.showSales();
cout endl;
cout << "The third: \n";
Sales s3(ar2,3);
s3.showSales();
return 0;
}
10.5
//stack.h
#ifndef STACK_H_
#define STACK_H_
struct customer
{
char fullname[35];
double payment;
};
typedef customer Item;
class Stack
{
private:
enum {MAX = 10};
Item items[MAX];
int top;
public:
Stack();
bool isempty() const;
bool isfull() const;
bool push(const Item & item);
bool pop(Item & item);
};
#endif
//stack.cpp
#include "stack.h"
Stack::Stack()
{
top = 0;
}
bool Stack:: isempty() const
{
return top == 0;
}
bool Stack:: isfull() const
{
turn top == MAX;
}
bool Stack::push(const Item & item)
{
if(top < MAX)
{
items[top++] = item;
return true;
}
else
return false;
}
bool Stack::pop(Item & item)
{
if(top > 0)
{
item = items[--top];
return true;
}
else
return false;
}
//main.cpp
#include <iostream>
#include <cctype>
#include "stack.h"
int main()
{
using namespace std;
Stack st;
char ch;
double total;
Item po;
cout << "Please enter A to add a purchase order,\n"
<< "P to process a PO, or Q to quit.\n";
while(cin >> ch && toupper(ch) != 'Q')
{
while (cin.get() != '\n')
continue;
if(!isalpha(ch))
{
cout << '\a';
continue;
}
swich(ch)
{
case 'A':
case 'a': cout << "Enter a customer to add: \nFullname: ";
cin.getline(po.fullname, 35);
cout << "Payment: ";
cin >> po.payment;
cin.get();
if (st.isfull())
cout << "stack already full\n";
else
st.push(po);
break;
case 'P':
case 'p': if (st.isempty())
cout << "stack already empty\n";
else
{
st.pop(po);
cout << "PO #" << po.fullname << " ayment: " << po.payment << " popped\n";
total += po.payment;
cout << "The total payment: " << total << endl;
}
break;
}
cout << "Please enter A to add a purchase order,\n"
<< "P to process a PO, or Q to quit. \n";
}
cout << "Bye\n";
return 0;
}
10.6
//10.6
//move.h
#ifndef MOVE_H_
#define MOVE_H_
class Move
{
private:
double x;
double y;
public:
Move(double a = 0);
void showmove() const;
Move add(const Move & m) const;
void reset (double a = 0, double b = 0);
};
#endif
//move.cpp
#include <iostream>
#include "move.h"
using namespace std;
Move::Move(double a, double b)
{
x = a;
y = b;
}
void Move::showmove() const
{
cout << "X is: " << x << endl;
cout << "Y is: " << y << endl;
cout << endl;
}
Move Move::add(const Move & m) const
{
return Move(x + m.x, y + m.y);
}
void Move::reset(double a, double b)
{
x = a;
y = b;
}
//main.cpp
#include <iostream>
#include "move.h"
using namespace std;
int main()
{
Move num1(12.5, 5.6);
num1.showmove();
Move num2(45, 23);
num1.add(num2).showmove();
num1.showmove();
num1.reset();
num1.showmove();
return 0;
}
10.7
//plorg.h
#ifndef PLORG_H_
#define PLORG_H_
class Plorg
{
private:
char name[20];
int CI;
public:
Plorg(char * str = "Plorga", int n = 50);
void setplorg(int n);
void showplorg() const;
};
#endif
//plorg.cpp
#include <iostream>
#include <cstring>
#include "plorg.h"
using namespace std;
Plorg::Plorg(char * str, int n)
{
strcpy(name, str);
CI = n;
}
void Plorg::setplorg(int n)
{
CI = n;
}
void Plorg::showplorg() const
{
cout << "The plorg name: " << name << endl;
cout << "The plorg CI: " << CI << endl;
cout << endl;
}
//main.cpp
#include <iostream>
#include <cstring>
#include "plorg.h"
using namespace std;
int main()
{
Plorg p1;
p1.showplorg();
p1.setplorg(54);
p1.showplorg();
Plorg p2("Dissv", 32);
p2.showplorg();
char str[20];
int n;
cout << "Enter the plorg name: ";
cin.getline(str, 20);
cout << "Enter the plorg CI: ";
cin >> n;
Plorg p3(str, n);
p3.showplorg();
return 0;
}
