C++ primer plus 第十章課後習題，原創答案。

阿新 • • 發佈：2019-01-22

//第十章第一題
#ifndef GOLF_H_
#define GOLF_H_
#include<string>
#include<iostream>

using std::string;
class BankCount
{

private: string name;
         string account;
         unsigned long deposit;
public:
    BankCount();
    BankCount(const string &s1, const string &s2, unsigned long 
 n);
    ~BankCount();
    void show();
    void input(unsigned long n);
    void output(unsigned long n);
};

#endif

#include<iostream>
#include"golf.h"
using std::cin;
using std::cout;
using std::endl;
BankCount::BankCount()
{
    cout << "Default constructor called\n";

}
BankCount::BankCount(const 
 string &s1, const string &s2, unsigned long n)
{
    cout << " constructor using "<<s1<<" called\n";
    name = s1;
    account = s2;
    deposit = n;
}
BankCount::~BankCount()
{
    cout << "Good bye！\n";
}
void BankCount::show()
{
    cout << "Bank  name:"<<name;
    cout 
 << " Bank  account:" << account;
    cout << " Bank  deposit:" << deposit<<endl;
}
void BankCount::input(unsigned long n)
{
    if (n<0)
        cout << "Bad input"<< endl;
    else
    {
        cout << "Your input is:" << n << endl;
        deposit += n;
    }
}




void BankCount::output(unsigned long n)
{
    if (n<0)
        cout << "Bad input" << endl;
    else
    {

        if (deposit > n)
        {
            deposit -= n;
            cout << "Your output is:" << n << endl;
        }   
        else 
            cout << "Your account is not enough!:"<< endl;
    }
}

#include<iostream>
#include<stdlib.h>
#include<string>
#include"golf.h"
//第十章
using std::string;
using std::cin;
using std::cout;
using std::endl;
int main()
{
    {
        BankCount b1("1:", "鄭州銀行", 1000);
        b1.show();
        BankCount b2 = BankCount("2:", "中原銀行", 2000);
        b2.show();
        b1.input(2000);
        b1.show();
        b2.input(2000);
        b2.show();
        b1.output(4000);
        b1.show();
    }
    system("pause");
    return 0;
}

//第二題

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

using std::string;
using std::cout;

class Person
{

private: 
    static const int LIMIT = 25;
    string lname;
    char fname[LIMIT];
public:
    Person(){ lname = "", fname[0] = '\0'; cout << "Default constor!\n"; }
    Person(const string &ln, const char *fn="Heryyou");
    ~Person();
    void show()const;
    void FormalShow() const;
};

#endif


#define _CRT_SECURE_NO_WARNINGS
#include<string>
#include<iostream>
#include"golf.h"
using std::string;
using std::cin;
using std::cout;
using std::endl;

Person::~Person()
{
    cout << "Bye！" << endl;
}
Person::Person(const string &ln, const char *fn )
{
    strncpy(fname,fn,LIMIT);
    lname = ln;
    cout << "No Default！" << endl;
}
void Person::show() const
{
    cout << "Your name is(FL):" << fname << " " << lname << endl;
}
void Person::FormalShow() const
{
    cout << "Your name is(LF):" << lname << " " << fname << endl;
}

#include<iostream>
#include<stdlib.h>
#include<string>
#include"golf.h"
//第十章
using std::string;
using std::cin;
using std::cout;
using std::endl;
int main()
{
    {
        Person one;
        Person two("Simth");
        Person three("Tomson", "wu");
        one.show();
        one.FormalShow();
        two.show();
        two.FormalShow();
        three.show();
        three.FormalShow();
    }
    system("pause");
    return 0;
}

//第3題

#ifndef GOLF_H_
#define GOLF_H_
const int len = 40;
class golf
{
private:
    char fullname[len];
    int handicap;
public:
    golf(const char* name="wqf", int hc=10);
    ~golf();
    int setgolf();
    void sethandicap(int hc);
    void showgolf()const;
};
#endif

#include<iostream>
#include<string>
#include"golf.h"
using std::string;
using std::cin;
using std::cout;
using std::endl;
golf::golf(const char* name, int hc)
{
    strcpy_s(fullname, name);
    handicap = hc;
}
golf::~golf()
{
    cout << "Bye!" << endl;
}
int golf::setgolf()
{
    cout << "Please enter your name:";
        string str;
        getline(cin, str);
        if (str == "\0")
            return 0;
        cout << "Please enter your hc:";
        strcpy_s(fullname, str.c_str());
        while (!(cin >> handicap))
        {
            cin.clear();
            cout << "Please enter a integer:";
        }
        while (cin.get() != '\n')
            continue;
        *this = golf(fullname, handicap);
        return 1;
}
void golf::sethandicap(int hc)
{
    handicap = hc;
}
void golf::showgolf()const
{
    cout << "golf: " << fullname << endl;
    cout << "handicap " << handicap << endl;
}

#include<iostream>
#include"golf.h"
//第十章
int main()
{
    using namespace std;
    golf one;
    golf two = {"hhj",11};
    golf three;
    three.setgolf();
    one.showgolf();
    two.showgolf();
    three.showgolf();
    one.sethandicap(3);
    one.showgolf();
    system("pause");
    return 0;
}

//第四題

#ifndef GOLF_H_
#define GOLF_H_
namespace SALES
{
    const int QUARTERS = 4;
    class Sales
    {
    private:
        double sales[QUARTERS];
        double average;
        double max;
        double min;
    public:
        Sales(const double ar[], int n);
        ~Sales();
        Sales();
        void showSales()const;
    };
}
#endif

#include<iostream>
#include"golf.h"
namespace SALES
{
    using std::cin;
    using std::cout;
    using std::endl;
    using namespace SALES;

    Sales::Sales(const double ar[], int n)
    {
        unsigned int size = n < QUARTERS ? n : QUARTERS;
        double sum=0;
        max = min = ar[0];
        for (unsigned int i = 0; i < size; i++)
        {
            sales[i] = ar[i];
            sum += ar[i];
            if (ar[i]>max)
                max = ar[i];
            else if (ar[i] < min)
                min = ar[i];
        }
        average = sum / size;
    }
    Sales::~Sales()
    {
        cout << "Bye!" << endl;
    }
    Sales::Sales()
    {
        cout << "Please enter 4 sales:";
        for (int i = 0; i < QUARTERS; i++)
        {
            cout << "sales" << i + 1 << ":";
            cin >> sales[i];
        }
        *this = Sales(sales, QUARTERS);
        double sum=0;
        max = min = sales[0];
        for (unsigned int i = 0; i < QUARTERS; i++)
        {
            sum += sales[i];
            if (sales[i]>max)
                max = sales[i];
            else if (sales[i] < min)
                min = sales[i];
        }
        average = sum / QUARTERS;
    }

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

#include<iostream>
#include<stdlib.h>
#include<cstring>
#include"golf.h"
int main()
{
    {
        using namespace SALES;
        double salesList[] = { 11.2, 11.3, 11.4, 11.5, 11.6 };
        Sales s1 = Sales(salesList, sizeof(salesList) / sizeof(double));
        s1.showSales();
        Sales s2;
        s2.showSales();
    }
    system("pause");
    return 0;
}

第5題

#ifndef STACK_H_
#define STACK_H_

typedef struct customer
{
    char fullname[35];
    double payment;
}CU;
typedef customer Item;
class Stack
{
private:
    enum{MAX=10};
    Item items[MAX];
    int top;
    int total;
public:
    Stack();
    bool isempty()const;
    bool isfull()const;
    bool push(const Item &item);
    bool pop(Item &item);
};

#endif


#include<iostream>
#include"棧.h"
using std::cout;
using std::endl;

Stack::Stack()
{
    top = 0;
    total = 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];
        total += item.payment;
        cout <<"#"<< item.fullname << endl;
        cout << "total:" << total << endl;
        return true;
    }
    else
        return false;
}



#include<iostream>
#include<cctype>
#include"棧.h"
#include<string>

int main()
{
    using namespace std;
    Stack st;
    char ch;
    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;
        }
        switch (ch)
        {
        case'a':
        case'A':
            cout << "Enter a fullname to add:";
            cin.getline( po.fullname,35);
            cout << "Enter a payment to add:";
            cin >> po.payment;

            if (st.isfull())
                cout << "Stack already full\n";
            else
                st.push(po);
            break;
        case'p':
        case'P':if (st.isempty())
            cout << "Stack is empty!" << endl;
                else
                {
                    st.pop(po);
                }
                break;
        }
        cout << "Please enter A to add a purchase order,\n"
            << "P to process a PO,or Q to quit\n";
    }
    cout << "Bye!";
    return 0;
}

//第六題

#ifndef GOLF_H_
#define GOLF_H_

class Move
{
private:
    double x;
    double y;

public:
    Move(double a=0, double b=0);
    Move add(const Move & m)const;
    void showMove()const;
    void reset(double a = 0, double b = 0);
};

#endif
#include"golf.h"
#include<iostream>
using std::cin;
using std::cout;
using std::endl;


Move::Move(double a, double b)
{
    x = a;
    y = b;
}
Move Move::add(const Move & m)const
{
    return Move(m.x + x, m.y + y);
}
void Move::showMove()const
{
    cout << "x=" << x<<endl;
    cout << "y=" << y << endl;
}
void Move::reset(double a, double b)
{
    x = a; 
    y = b;
}
#include<iostream>
#include<stdlib.h>
#include<cstring>
#include"golf.h"
int main()
{
    Move m1;
    m1 = { 3, 5 };
    Move m2(7, 8);
    m1.showMove();
    m2.showMove();
    m1=m1.add(m2);
    m1.showMove();
    m1.reset();
    m1.showMove();
    system("pause");
    return 0;
}

//第七題

#ifndef GOLF_H_
#define GOLF_H_

class Plorg
{
private:
    enum{ Max = 20 };
    char name[Max];
    int CI;

public:
    Plorg(char *wname="wqf", int wCI=10);
    void showPlorg()const;
    void setCI(int wCI);
};

#endif

#include<iostream>
#include"golf.h"
#include<string>
using std::cout;
using std::endl;
Plorg::Plorg(char *wname, int wCI)
{
    strcpy_s(name, wname);
    CI = wCI;
}
void Plorg::showPlorg()const
{
    cout << "Name:" << name << endl;
    cout << "CI:" << CI << endl;
}
void Plorg::setCI(int wCI)
{
    CI = wCI;
}

#include<iostream>
#include<stdlib.h>
#include<cstring>
#include"golf.h"
int main()
{
    Plorg p1;
    Plorg p2("hhj",11);
    p1.showPlorg();
    p2.showPlorg();
    p1.setCI(13);
    p1.showPlorg();
    system("pause");
    return 0;
}

//第8題

#ifndef STACK_H_
#define STACK_H_


typedef int Item;
class List
{
private:
    enum{ MAX = 5 };
    Item items[MAX];
    int top;
public:
    List(const Item[]=NULL,int m=0);
    bool isempty()const;
    bool isfull()const;
    bool push(const Item &item);
    bool pop(Item &item);
    void visit(void(*pf)(Item &m));
};
void show(Item &m);
void change(Item &m);
Item get();

#endif

#include<iostream>
#include"zhan.h"
using std::cout;
using std::endl;
using std::cin;
List::List(const Item[], int m)
{
    top = 0;
}
bool List::isempty()const
{
    return top == 0;
}
bool List::isfull()const
{
    return top == MAX;
}
bool List::push(const Item &item)
{
    if (top < MAX)
    {
        items[top++] = item;
        return true;
    }
    else
        return false;
}
bool List::pop(Item &item)
{
    if (top>0)
    {
        item = items[--top];
        return true;
    }
    else
        return false;
}

void List::visit(void(*pf)(Item &m))
{
    for (int i = 0; i < top; i++)
        pf(items[i]);
}
void show(Item &m)
{
    cout << m << ',';
}
void change(Item &m)
{
    cout << "Please enter replace content:";
    Item a;
    cin >> a;
    if (m = a)
    {
        cout << "Success!" << endl;
    }
    else
        cout << "failure!" << endl;
}

Item get()
{
    Item a;
    cout << "Please enter your content:";
    cin >> a;
    while (!cin)
    {
        cin.sync();
        cin.clear();
        cout << "Bad input! enter again!";
        cin >> a;
    }
    return a;
}

#include<iostream>
#include"zhan.h"
#include<string>

int main()
{
    using namespace std;
    List st;
    if (st.isempty())
        cout << "It's empty." << endl;
    else
        cout << "It's not empty." << endl;
    Item a;
    while (!st.isfull())
    {
        a = get();
        if (st.push(a))
            cout << "Input successful"<< endl;
        else
            cout << "Bad input!" << endl;
    }
    st.visit(show);
    st.visit(change);
    st.visit(show);
    system("pause");
    return 0;
}

C++ primer plus 第十章課後習題，原創答案。

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