C++ Primer Plus第六版編程練習第十章

1.

account.h

#ifndef ACCOUNT_H_
#define ACCOUNT_H_
#include <iostream>
#include <string>

class BankAccount
{
private:
	std::string name_;
	std::string acctnum_;
	double balance_;
public:
	BankAccount(const std::string& client,
		const std::string& num, double bal = 0.0);
	BankAccount();
	~BankAccount();
	void show() const;
	void deposit(double cash);
	void withdraw(double cash);
};

#endif

account.cpp

#include "account.h"


BankAccount::BankAccount(const std::string& client,
    const std::string& num, double bal )
{
    name_ = client;
    acctnum_ = num;
    balance_ = bal;
}

BankAccount::BankAccount()
{
    name_ = "";
    acctnum_ = "";
    balance_ = 0.0;
}

BankAccount::~BankAccount()
{}

void BankAccount::show() const
{
    std::cout << "儲戶姓名： " << name_ << std::endl;
    std::cout << "儲戶帳號： " << acctnum_ << std::endl;
    std::cout << "存款： " << balance_ << std::endl;
}

void BankAccount::deposit(double cash)
{
    if (cash < 0.0)
        std::cout << "你木錢了" << std::endl;
    else
        balance_ += cash;
}

void BankAccount::withdraw(double cash)
{
    if (cash > balance_)
        std::cout << "你木錢了" << std::endl;
    else
        balance_ -= cash;
}

main.cpp

#include "account.h"

int main()
{
    BankAccount a = BankAccount("nigezazhong", "1966666", 0);

    a.show();
    a.deposit(100);
    a.show();
    a.withdraw(10);
    a.show();

    return 0;
}

2.

person.h

#ifndef PERSON_H_
#define PERSON_H_
#include <iostream>
#include <string>
#include <cstring>

class Person 
{
private:
    static const int LIMIT = 25;
    std::string lname_;
    char fname_[LIMIT];

public:
    Person() { lname_ = ""; fname_[0] = '\0'; }
    Person(const std::string& lname, const char* fname = "Heyyou");
    void show() const;
    void formal_show() const;
};

#endif

person.cpp

#include "person.h"

Person::Person(const std::string& lname, const char* fname)
{
    lname_ = lname;
    strcpy_s(fname_, fname);
}

void Person::show() const
{
    std::cout << fname_ << " " << lname_ << std::endl;
}

void Person::formal_show() const
{
    std::cout << lname_ << ", " << fname_ << std::endl;
}

main.cpp

#include "person.h"

int main()
{
    Person one;
    Person two("Symthecraft");
    Person three("Dimwiddy", "Sam");
    three.show();
    three.formal_show();

    return 0;
}

3.

golf.h

#ifndef GOLF_H_
#define GOLF_H_
#include <iostream>

class Golf {
private:
    static const int LEN = 40;
    char fullname[LEN];
    int handicap;

public:
    Golf(const char* name, int hc);
    Golf();
    ~Golf();
    const Golf& setgolf( Golf & g);
    void showgolf() const;
};

#endif

golf.cpp

#include <cstring>
#include <iostream>
#include "golf.h"

Golf::Golf()
{
    strcpy_s(fullname, "Noname");
    handicap = 0;
}

Golf::~Golf()
{}

Golf::Golf(const char* name, int hc)
{
    strcpy_s(fullname, name);
    handicap = hc;
}

const Golf& Golf::setgolf( Golf& g)
{
    std::cout << "輸入姓名: ";
    std::cin.getline(g.fullname, 40);
    strcpy_s(fullname, g.fullname);
    std::cout << "輸入等級: ";
    std::cin >> g.handicap;
    handicap= g.handicap;

    return *this;
}

void Golf::showgolf() const
{
    std::cout << "姓名: " << fullname << std::endl;
    std::cout << "等級: " << handicap << std::endl;
}

main.cpp

#include "golf.h"

int main()
{
    Golf g1 = Golf("grfnb", 5);
    g1.showgolf();
    Golf g2;
    g2.showgolf();
    g2.setgolf(g1);
    g2.showgolf();

    return 0;
}

4.

sales.h

#ifndef SALES_H_
#define SALES_H_

namespace SALES
{
    class Sales {
    private:
        static const int QUARTERS = 4;
        double sales[QUARTERS];
        double average;
        double max;
        double min;

    public:
        Sales(const double ar[], int n);
        Sales();
        void setSales();
        void showSales();
    };
}

#endif

sales.cpp

#include <iostream>
#include "sales.h"

namespace SALES
{
    Sales::Sales(const double ar[], int n)
    {
        for (int i = 0; i < QUARTERS; ++i)
        {
            if (i < n)
                sales[i] = ar[i];
            else
                sales[i] = 0.0;
        }
        double sum = 0.0;
        double max_temp = sales[0], min_temp = sales[0];
        for (int i = 0; i < QUARTERS; ++i)
        {
            double cur = sales[i];
            if (cur > max_temp)
                max_temp = cur;
            if (cur < min_temp)
                min_temp = cur;
            sum += cur;
        }
        average = sum / (float)QUARTERS;
        max = max_temp;
        min = min_temp;
    }

    Sales::Sales()
    {
        for (int i = 0; i < QUARTERS; ++i)
            sales[i] = 0.0;
        average = 0.0;
        max = 0.0;
        min = 0.0;
    }

    void Sales::setSales()
    {
        using std::cin;
        using std::cout;
        using std::endl;

        cout << "Enter sales:" << endl;
        for (int i = 0; i < QUARTERS; ++i)
        {
            cout << "sales[" << i << "]: ";
            cin >> sales[i];
        }
        double sum = 0.0;
        double max_temp = sales[0], min_temp = sales[0];
        for (int i = 0; i < QUARTERS; ++i)
        {
            double cur = sales[i];
            if (cur > max_temp)
                max_temp = cur;
            if (cur < min_temp)
                min_temp = cur;
            sum += cur;
        }
        average = sum / (float)QUARTERS;
        max = max_temp;
        min = min_temp;
    }

    void Sales::showSales()
    {
        using std::cout;
        using std::endl;
        cout << "sales: ";
        for (int i = 0; i < QUARTERS; ++i)
            cout << sales[i] << " ";
        cout << endl;
        cout << "average: " << average << endl;
        cout << "max: " << max << endl;
        cout << "min: " << min << endl;
    }
}

main.cpp

#include "sales.h"

int main(void)
{
    using SALES::Sales;
    double vals[3] = { 10, 20, 30 };
    Sales s = Sales(vals, 3);
    s.showSales();
    Sales t;
    t.setSales();
    t.showSales();
    return 0;
}

5.

stack.h

#ifndef STACK_H_
#define STACK_H_

struct customer {
    char fullname[35];
    double payment;
};
typedef customer Item;

class Stack {
private:
    static const int 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
{
    return 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;
    Item item;
    double total = 0.0;

    cout << "Please enter A to add an customer" << endl;
    cout << "p to pop a customer, Q to quit." << endl;

    while (cin >> ch && toupper(ch) != 'Q')
    {
        while (cin.get() != '\n')
            continue;

        if (!isalpha(ch))
        {
            cout << '\a';
            continue;
        }

        switch (ch)
        {
        case 'a':
        case 'A':
            cout << "Enter customer name: ";
            cin.getline(item.fullname, 35);
            cout << "Enter payment: ";
            cin >> item.payment;
            if (st.isfull())
                cout << "stack is full" << endl;
            else
                st.push(item);
            break;
        case 'p':
        case 'P':
            if (st.isempty())
                cout << "stack is empty" << endl;
            else
            {
                st.pop(item);
                total += item.payment;
                cout << "total = " << total << endl;
            }
            break;
        }

        cout << "Please enter A to add an customer" << endl;
        cout << "p to pop a customer, Q to quit." << endl;
    }

    cout << "Bye!" << endl;

    return 0;
}

6.

move.h

#ifndef MOVE_H_
#define MOVE_H_

class Move {
private:
    double x;
    double y;
public:
    Move(double a = 0, double b = 0);
    void showmove() const;
    Move add(const Move& m) const;
    void reset(double a = 0, double b = 0);
};

#endif

move.cpp

#include "move.h"
#include <iostream>

Move::Move(double a, double b)
{
    x = a;
    y = b;
}

void Move::showmove() const
{
    std::cout << "(" << x << ", " << y << ")" << std::endl;
}

Move Move::add(const Move& m) const
{
    Move n = Move(x + m.x, y + m.y);
    return n;
}

void Move::reset(double a, double b)
{
    x = a;
    y = b;
}

main.cpp

#include "move.h"

int main(void)
{
    Move m1;
    m1.showmove();
    m1.reset(2, 3);
    m1.showmove();
    Move m2 = Move(3, 1);
    m2.showmove();
    Move m3;
    m3 = m2.add(m1);
    m3.showmove();

    return 0;
}

7.

plorg.h

#ifndef PLORG_H_
#define PLORG_H_

class Plorg {
private:
    static const int LEN = 20;
    char name[LEN];
    int ci;

public:
    Plorg();
    void reset(const int& c);
    void show() const;
};

#endif

plorg.cpp

#include "plorg.h"
#include <iostream>
#include <cstring>

Plorg::Plorg()
{
    strcpy_s(name, "Plorg");
    ci = 50;
}

void Plorg::reset(const int& c)
{
    ci = c;
}

void Plorg::show() const
{
    std::cout << "name: " << name << std::endl;
    std::cout << "CI: " << ci << std::endl;
}

main.cpp

#include "plorg.h"

int main()
{
    Plorg p;
    p.show();
    p.reset(30);
    p.show();
    return 0;
}

8.

list.h

#ifndef LIST_H_
#define LIST_H_

#include <string>

const int MAX = 10;

struct people {
    std::string name;
    int age;
};
typedef people Item;

class List {
private:
    Item items[MAX];
    int count;

public:
    List();
    bool isempty() const;
    bool isfull() const;
    int itemcount() const;
    bool additem(const Item& item);
    void visit(void (*pf)(Item&));
};

#endif

list.cpp

#include "list.h"
#include <iostream>

List::List()
{
    count = 0;
}

bool List::isempty() const
{
    return count == 0;
}

bool List::isfull() const
{
    return count == MAX;
}

int List::itemcount() const
{
    return count;
}

bool List::additem(const Item& item)
{
    if (isfull())
    {
        std::cout << "已經滿了" << std::endl;
        return false;
    }
    else
    {
        items[count++] = item;
        return 1;
    }
}

void List::visit(void (*pf)(Item&))
{
    for (int i = 0; i < count; i++)
        (*pf)(items[i]);
}

main.cpp

#include <iostream>
#include "list.h"

void addage(Item& item);

int main()
{
    List l;
    Item i = { "wnnmmb", 24 };
    Item i2 = { "hhhh", 20 };
    l.additem(i);
    l.additem(i2);
    std::string str;
    if (l.isempty() == 1)
        str = "Yes!";
    if (l.isempty() == 0)
        str = "No!";
    if (l.isfull() == 1)
        str = "Yes!";
    if (l.isfull() == 0)
        str = "No!";
    std::cout << "isFull? " << str << std::endl;
    int n = l.itemcount();
    std::cout << n << " items in list" << std::endl;
    l.visit(addage);
    return 0;
}

void addage(Item& item)
{
    item.age += 1;  
    std::cout << item.age << std::endl;
}

C++ Primer Plus第六版編程練習第十章

1.

2.

3.

4.

5.

6.

7.

8.

C++ Primer Plus第六版編程練習第十三章

C++ Primer Plus第六版編程練習第八章

C++ Primer Plus第六版編程練習第十三章

C++ Primer Plus第六版編程練習第二章

C++ Primer Plus第六版編程練習第六章

https://yachay.unat.edu.pe/blog/index.php?comment_area=format_blog&comment_component=blog&comment_co

linux以太網驅動總結

C++ Primer Plus第六版 編程練習第十章

1.

2.

3.

4.

5.

6.

7.

8.

C++ Primer Plus第六版編程練習第十章