C++ Primer Plus (第6版)编程练习 代码-----第十章

1.

bank.h#ifndef bank_H_  #define bank_H_  #include"stdafx.h"class bank{ private: char name[40]; char account[20]; double  money; public: bank(); bank(const char* nm,const char*ac,double mo); ~bank(); void show(); void input(double mo); void output(double mo);};#endifbank.cpp#include"stdafx.h"#include"bank.h"#include<iostream>bank::bank() {   strncpy(name,"no name",39);   name[39]='\0';   strncpy(account,"no account",19);   account[19]='\0';   money=0.0;  } bank::bank(const char* nm,const char*ac,double mo) {   strncpy(name,nm,39);   name[39]='\0';   strncpy(account,ac,19);   account[19]='\0';   money=mo;  } bank::~bank() { std::cout<<"Bye"; }void bank::show() {std::cout<<name<<"'s account is : "<<account<<" has "<<money<<std::endl;}void bank::input(double mo){money+=mo;}void bank::output(double mo){   money-=mo;}main.cpp#include "stdafx.h"#include<iostream>#include <string>#include<cctype>#include "bank.h"void main(){{ bank bk("John Smith","JS0001",5000.0);  bk.show(); bk.input(1200.0); bk.show(); bk.output(200.0);  bk.show();}std::system("pause");}

2.test.h

#ifndef TEST_H_  #define TEST_H_  #include"stdafx.h"#include<string>using namespace std;class Person{ private:static const int LIMIT =25;string lname;char fname[LIMIT]; public: Person(){lname="";fname[0]='\0';}; Person(const string & ln,const char *fn="Heyyou"); void Show() const; void FormalShow() const; ~Person();};#endif

test.cpp

#include"stdafx.h"#include"test.h"#include<iostream>#include<string>Person::Person(const string & ln ,const char *fn) { std::cout<<"\n"; std::cout<<"lname is :"<<ln<<"  fname is : "<<fn; lname=ln; int  n=strlen(fn); for(int i=0;i<n;i++ )fname[i]=fn[i];    fname[n]='\0';   }Person::~Person() { }void Person::Show() const{    std::cout<<std::endl<<"lname: "<<lname<<" fname: " <<fname<<std::endl;} void  Person::FormalShow() const{std::cout<<" fname: " <<fname<<" lname: "<<lname<<std::endl;}

main.cpp

#include "stdafx.h"#include<iostream>#include <string>#include<cctype>#include "test.h"int main(){{    Person one;       one.Show();one.FormalShow();    Person two("Smythecraft");two.Show();two.FormalShow();    Person three("Dimwiddy","Sam");three.Show();three.FormalShow();   std::system("pause"); }return 0;}

3.

test.h#ifndef TEST_H_  #define TEST_H_  #include"stdafx.h"#include<string>using namespace std;const int Len=40;class Golf{private:  char fullname[Len];        int handicap;  public: Golf();~Golf();   void setgolf(const char*name,int hc);     int setgolf();     void Handicap(int hc);     void showgolf();  };#endiftest.cpp#include"stdafx.h"#include"test.h"#include<iostream>#include<string>using namespace std;  Golf::Golf(){}Golf::~Golf(){}void Golf::setgolf(const char*name,int hc)  {                 strcpy(fullname,name);            handicap=hc;  }  int Golf::setgolf()  {            cout<<"Please enter the name: ";      cin.getline(fullname,40);                if(strlen(fullname)==0)        return 0;    else         cout<<"Please enter the handicap: ";        cin>>handicap;        return 1;  }  void Golf::Handicap(int hc)  {      handicap=hc;  }  void Golf::showgolf()  {     cout<<"the name is :     "<<fullname<<endl;     cout<<"the handicap is : "<<handicap<<endl<<endl<<endl;    }  main.cpp#include "stdafx.h"#include<iostream>#include <string>#include<cctype>#include "test.h"using namespace std;int main(){{    Golf ann;           ann.setgolf("Ann Birdfree",24);           ann.showgolf();           ann.Handicap(26);           ann.showgolf();           int i=0;            Golf gf[5] ;         int  test=gf[i].setgolf();          while((test==1)&&(i<4))         {              i++;             cin.get();             test=gf[i].setgolf();         }            for(int j=0;j<=i;j++)         {            cout<<"the "<<j+1<<" is : "<<endl;            gf[j].showgolf();            cout<<endl;          }            cout<<"Bye!\n";         std::system("pause");       }return 0;}

4.test.h#ifndef TEST_H_  #define TEST_H_  #include"stdafx.h"#include<string>using namespace std;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();           void showSales();     };  }  #endiftest.cpp#include"stdafx.h"#include"test.h"#include<iostream>#include<string>using namespace std;  namespace SALES  {              Sales::Sales(const double ar[],int n)      {          double sum=0;max=ar[0];min=ar[0];         for(int i=0;i<n;i++)          {              sales[i]=ar[i];              sum=sum+sales[i];              if(sales[i]>max)                  max=sales[i];              if(sales[i]<min)                  min =sales[i];          }         average=sum/n;         /*max=max;         min=min;  */            }      Sales::Sales()      {        double sum=0;         for(int i=0;i<4;i++)          {                std::cout<<"Plesae enter the number:";              std::cin>>sales[i];                sum=sum+sales[i];          }         max=sales[0];   min=sales[0];         for(int i=0;i<4;i++)          {              if(sales[i]>max)                  max=sales[i];                            if(sales[i]<min)                  min =sales[i];          }         average=sum/4;         /* max=max;         min=min;  */          }      void Sales::showSales()                {             int n =sizeof(sales)/8;              std::cout<<"The sales   of Sales is :";            for(int i=0;i<n;i++)            std::cout<<sales[i]<<" ";            std::cout <<std::endl;        std::cout<<"The average of Sales is :"<<average<<std::endl;        std::cout<<"The max     of Sales is :"<<max<<std::endl;        std::cout<<"The min     of Sales is :"<<min<<std::endl;            }    }  main.cpp#include "test.h"using namespace std;int main(){     using namespace SALES;             double st[4]={3.08,2.01,10.234,1.097};      Sales s1(st,3);       s1.showSales();       Sales s2;       s2.showSales();       system("pause");      return 0;  }

5.

<pre name="code" class="cpp">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);};#endifStack.cppStack::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;}elsereturn false;}main.cppusing namespace std;int main(){Stack st;customer cs[10]={{"AA",100},{"BB",200},{"CC",300},{"DD",400},{"EE",500},{"FF",600},{"GG",700},{"HH",800},{"II",900},{"JJ",1000}};      for(int i=0;i<=10;i++)      {  if(st.isfull())    {     cout<<"the stack is full!\n";    }else {         st.push(cs[i]);          cout<<"push the "<<i<<" customer "<<cs[i].fullname<<"'s  payment is "<<cs[i].payment<<endl;     }    }        cout<<"\n\n\n";int total=0;    for(int i=0;i<=10;i++)      {    if(st.isempty())   {     cout<<"the stack is empty!\n";   } else   {          st.pop(cs[i]);           total+=cs[i].payment;           cout<<"total="<<total<<endl;  }    }       system("pause");      return 0;  }

6.

Move.hclass Move{private:   double x;   double y;public:   Move (double a=0,double b=0);   void  showmove() const;   Move add(const Move &m);   void  reset(double a=0,double b=0);};Move.cppusing namespace std; Move::Move (double a,double b){   x=a;   y=b;}void Move:: showmove() const{  cout<<"\nthe current x is :"<<x<<endl;  cout<<"the current y is :"<<y<<endl;}Move  Move::add(const Move &m){x=x+m.x;y=y+m.y;return *this;}void Move:: reset(double a,double b){   x=a;   y=b;}main.cppusing namespace std;int main(){Move mv(1,2);mv.showmove();Move mt(3,4);mt.showmove();mv.add(mt);mv.showmove();mt.showmove();mv.reset();mt.reset();mv.showmove();mt.showmove();     system("pause");      return 0;  }

7.test.h#ifndef TEST_H_  #define TEST_H_  class Plorg{private:   char name[19];   int ci;public:  Plorg(char *ch="Plorg",int c=0);  void newplorg(char*ch);  void changeplorg(int n);  void showplorg()const;};#endiftest.cpp#include"stdafx.h"#include"test.h"#include<iostream>#include<string>using namespace std;Plorg::Plorg(char *ch,int c) {   strcpy(name,ch);ci=c;  }void Plorg::newplorg(char*ch){cout<<"the new name !\n" ;strcpy(name,ch);ci=50;}void Plorg::changeplorg(int n){cout<<"change the ci !\n" ;ci=n;} void Plorg::showplorg()const {   cout<<"the Name is :"<<name<<"  the CI is : "<<ci<<endl<<endl;  }main.cpp#include "stdafx.h"#include<iostream>#include <string>#include<cctype>#include "test.h"using namespace std;int main(){Plorg pl("Test",10);pl.showplorg();pl.newplorg("ChangeTest");pl.showplorg();pl.changeplorg(20);pl.showplorg();     system("pause");      return 0;  }10.8