c面向对象程序设计课后习题答案(谭浩强版)资料.pdf

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1、第一章5:include using namespace std;int main()(coutThisis;coutaHC+；coutprogram,endl;return 0;)6:#include using namespace std;int main()(int a,b,c;a=10;b=23;c=a+b;couta+b=;coutc;coutendl;return 0;7:#include using namespace std;int main()int a,b,c;int f(int xjnt yjnt z);cin ab c;c=f(a,b,c);coutcendl;retu

2、rn 0;)int f(int xjnt yjnt z)(int m;if(xy)m=x;else m=y;if(zm)m=z;return(m);8:#include using namespace std;int main()(int a,b,c;cinab;c=a+b;cout,a+b=a+bendl;return 0;9:include using namespace std;int main()int add(int x,int y);int a,b,c;cinab;c=add(a,b);couta+b=cendl;return 0;int add(int x,int y)int c

3、;c=x+y；return(c);10:include using namespace std;int main()void sort(int x,int y,int z);int xzy,z;cin xyz;sort(x,y,z);return 0;void sort(int x,int y,int z)int temp;if(xy)temp=x;x=y;y=temp;/内3 个语句的作用是将x 和 y 的值互换)if(zx)co u t z 7 x 7 y e n d l;else if(zy)co u t x 7 z 7 y e n d l;else coutx/y,zendl;)11:

4、include using namespace std;int main()int max(int a,int b,int c=0);int a,bzc;cin abc;cout,max(a,b,c)=,max(a/b/c)endl;coutmax(a,b)=max(a,b)endl;return 0;)int max(int a,int bjnt c)if(ba)a=b;if(ca)a=c;return a;)12:#include using namespace std;int main()void change(int Jnt);int a,b;cinab;if(ab)change(a,

5、b);cout”max=av min=bendl;return 0;void change(int Jn t)(int rl,r2,temp;temp=rl;rl=r2;r2=temp;)13:#include using namespace std;int main()void sort(int&,int&Jnt&);int a,b,c,al,bl,cl;coutPlease enter 3 integers:*;cin ab c;al=a;bl=b;cl=c;sort(alzblzcl);couta b c in sorted order iscoutal b l clendl;retur

6、n 0;void sort(int&i,int&j,int&k)void change(int&,int&);if(ij)change(ij);if(ik)change(i,k);if(jk)change(j,k);void change(int&x,int&y)int temp;temp=x;x=y;y=temp;)14:#include include using namespace std;int main()string si=“week”,s2二“end”；coutsl=slendl;couts2=s2endl;sl=sl+s2;coutHThe new string is:slen

7、dl;return 0;15:include#include using namespace std;int main()string str;int i,n;char temp;coutplease input a string:;cinstr;n=str.size();for(i=0;in/2;i+)temp=stri;stri=strn-i-l;strn-i-l=temp;coutstrendl;return 0;16:include#include using namespace std;int main()int i;string str5=,BASIC；,C,FORTRANzC+,

8、PASCAL);void sort(string);sort(str);coutthe sorted strings:endl;for(i=0;i5;i+)coutstricoutendl;return 0;void sort(string s)int i,j;string t;for(j=0;j5;j+)for(i=0;isi+l)t=si;si=si+l;si+l=t;17:include include using namespace std;int main()(long c=10100,-123567,1198783,-165654,3456;int a5=l,9,0,23,-45;

9、float b5=2.4,7.6,5.5,6.6,2 3 ;void sort(int);void sort(float);void sort(long);sort(a);sort(b);sort(c);return 0;)void sort(int a)intfor(j=0;j5;j+)for(i=0;iai+l)t=ai;ai=ai+l;ai+l=t;coutthe sorted numbers:Hendl;for(i=0;i5;i+)coutaicoutendlendl;void sort(long a)int ij;long t;for(j=0;j5;j+)for(i=0;iai+l)

10、t=ai;ai=ai+l；ai+l=t;coutthe sorted numbers:endl;for(i=0;i5;i+)coutaicoutendlendl;)void sort(float a)int ij;float t;for(j=0;j5;j+)for(i=0;iai+l)t=ai;ai=ai+l；ai+l=t;coutthe sorted numbers:endl;for(i=0;i5;i+)coutaiHcoutendlendl;18:#include include using namespace std;template void sort(T a)int i,j,min;

11、Tt;for(i=0;i5;i+)min=i;for(j=i+l;jaj)min=j;t=ai;ai=amin;amin=t;)coutthe sorted numbers:endl;for(i=0;i5;i+)coutaicoutendlendl;int main()int a5=l,9,0,23,-45);float b5=2.4,7.6,5.5,6.6,-2.3;long c5=10100z-123567z 1198783,-165654,3456;sort(a);sort(b);sort(c);return 0;第二章#include using namespace std;class

12、 Time(public:void set_time();void show_time();private:int hour;int minute;int sec;成员改为公用的）；void Time:set_time()(cinhour;cinminute;cinsec;在main函数之前定义void Time:show_time()在main函数之前定义couthour:,m inute:secendl;int main()Time tl;tl.set_time();tl.show_time();return 0;)2：#include using namespace std;class

13、Timepublic:void set_time(void)cinhour;cinminute;cinsec;)void show_time(void)couthour:,m inute:secendl;private:int hour;int minute;int sec;)；Time t;int main()t.set_time();t.show_time();return 0;)3：#include using namespace std;class Timepublic:void set_time(void);void show_time(void);private:int hour;

14、int minute;int sec;void Time:set_time(void)cinhour;cinminute;cinsec;)void Time:show_time(void)couthour:minute:secendl;Time t;int main()t.set_time();t.show_time();return 0;4：/xt2-4-l.cpp(main.cpp)include using namespace std;include xt2-4.hint main()Student stud;stud.set_value();stud.display();return

15、0;)xt2-4-2.cpp(即 student.cpp)include xt2-4.h 在此文件中进行函数的定义include using namespace std;不要漏写此行void Student:display()coutunum:numendl;coutname:nameendl;coutsex:sexendl;)void Student:set_value()cinnum;cinname;cinsex;5：/xt2-5-l.cpp(filel.cpp)include#include xt2-5.hint main()Array_max arrmax;arrmax.set_val

16、ue();arrmax.max_value();arrmax.show_value();return 0;)/xt2-5-2.cpp(arraymax.cpp)#include using namespace std;#include xt2-5.hvoid Array_max:set_value()int i;for(i=0;i10;i+)cinarrayi;void Array_max:max_value()int i;max=array0;for(i=l;imax)max=arrayi;void Array_max:show_value()coutmax=,maxendl;)6：解法一i

17、nclude using namespace std;class Boxpublic:void get_value();float volume();void display();public:float lengh;float width;float height;；void Box二 get_value()coutplease input lengh,width,height:;cinlengh;cinwidth;cinheight;)float Box:volume()return(lengh*width*height);void Box:display()coutvolume()end

18、l;int main()Box boxl,box2,box3;boxl.get_value();coutvolmue of baxl isboxl.display();box2.get_value();coutvolmue of bax2 isbox2.display();box3.get_value();coutnvolmue of bax3 isbox3.display();return 0;)解法二：#include using namespace std;class Boxpublic:void get_value();void volume();void display();publ

19、ic:float lengh;float width;float height;float vol;）；void Box:get_value()coutplease input lengh,width,height:;cinlengh;cinwidth;cinheight;)void Box二volume。vol=lengh*width*height;void Box:display()coutvolendl;int main()Box boxlzbox2,box3;boxl.get_value();boxl.volumeO;coutvolmue of baxl isboxl.display(

20、);box2.get_value();box2.volume();coutvolmue of bax2 isbox2.display();box3.get_value();box3.volume();coutvolmue of bax3 isbox3.display();return 0;第三章2:include using namespace std;class Datepublic:Date(intjntjnt);Date(intjnt);Date(int);Date();void display();private:int month;int day;int year;；Date:Dat

21、e(int m,int d,int y):month(m),day(d),year(y)()Date:Date(int mjnt d):month(m)zday(d)year=2005;Date:Date(int m):month(m)day=l;year=2005;Date:Date()month=l;day=l;year=2005;)void Date:display()coutm onth7day7yearencll;int main()(Date dl(10z13z2005);Date d2(12,30);Date d3(10);Date d4;dl.display();d2.disp

22、lay();d3.display();d4.display();return 0;)3:include using namespace std;class Datepublic:Date(int=l,int=l,int=2005);void display();private:int month;int day;int year;);Date:Date(int mjnt d,int y):month(m),day(d),year(y)(void Date:display()coutm onth7day7yearendl;int main()(Date dl(10,13,2005);Date d

23、2(12,30);Date d3(10);Date d4;dl.display();d2.display();d3.display();d4.display();return 0;)4:include using namespace std;class Studentpublic:Student(int n,float s):num(n),score(s)void display();private:int num;float score;);void Student:display()coutnum scoreendl;int main()Student stud5=Student(10L7

24、8.5),Student(102,85.5),Student(103,98.5),Student(104,100.0),Student(105,95.5);Student*p=stud;for(int i=0;idisplay();return 0;)5:include using namespace std;class Studentpublic:Student(int n,float s):num(n),score(s)int num;float score;；void main()Student stud5=Student(101/78.5)/Student(102,85.5)/Stud

25、ent(103,98.5)zStudent(104,100.0),Student(105,95.5);void max(Student*);Student*p=&studO;max(p);void max(Student*arr)float max_score=arr0.score;int k=0;for(int i=l;imax_score)max_score=arri.score;k=i;coutarrk.num max_scoreendl;)6:include using namespace std;class Studentpublic:Student(int n,float s):n

26、um(n),score(s)void change(int n,float s)num=n;score=s;void display()coutnum scoreendl;private:int num;float score;；int main()Student stud(101,78.5);stud.display();stud.change(101,80.5);stud.display();return 0;7:解法一include using namespace std;class Studentpublic:Student(int n,float s):num(n)zscore(s)

27、void change(int njloat s)num=n;score=s;void display()coutnum nscoreendl;可改为:void display()const coutnum scoreendl;private:int num;float score;；int main()const Studentstud(101,78.5);stud.display();/stud.change(101,80.5);stud.display();return 0;解法二：#include using namespace std;class Studentpublic:Stud

28、ent(int n,float s):num(n),score(s)void change(int n,float s)const num=n;score=s;void display()const coutnum scoreendl;private:mutable int num;mutable float score;；int main()const Student stud(101,78.5);stud.display();stud.change(101,80.5);stud.display();return 0;)解法三：include using namespace std;clas

29、s Studentpublic:Student(int n,float s):num(n),score(s)void change(int n,float s)num=n;score=s;void display()coutnum scoreendl;private:int num;float score;)；int main()Student stud(101,78.5);Student*p=&stud;p-display();p-change(101,80.5);p-display();return 0;8：include using namespace std;class Student

30、public:Student(int n,float s):num(n),score(s)void change(int n,float s)num=n;score=s;void display()coutnum nscoreendl;private:int num;float score;);int main()Student stud(101,78.5);void fun(Student&);fun(stud);return 0;void fun(Student&stu)stu.displayO;stu.change(101,80.5);stu.display();9：include us

31、ing namespace std;class Productpublic:Product(int n,int qjloat p):num(n),quantity(q),price(p);void total();static float average();static void display();private:int num;int quantity;float price;static float discount;static float sum;static int n;；void Product:total()float rate=1.0;if(quantity10)rate=

32、0.98*rate;sum=sum+quantity*price*rate*(l-discount);n=n+quantity;)void Product:display()coutsumendl;coutaverage()endl;float Product:average()return(sum/n);float Product:discount=0.05;float Product:sum=0;int Product:n=0;int main()(Product Prod3=Product(101/5/23.5)/Product(102z12z24.56)zProduct(103/100

33、z21.5)；for(int i=0;i3;i+)Prodi.total();Product:display();return 0;10：#include using namespace std;class Date;class Timepublic:Timefintjntjnt);friend void display(const Date&,const Time&);private:int hour;int minute;int sec;Time:Time(int h,int m,int s)hour=h;minute=m;sec=s;)class Datepublic:Date(intj

34、ntjnt);friend void display(const Date&,const Time&);private:int month;int day;int year;；Date:Date(int m,int d,int y)month=m;day=d;year=y;)void display(const Date&d,const Time&t)(coutd.month，7d.day，7d.yearendl;coutt.hour:t.minute:t.secendl;int main()(Timetl(10,13,56);Datedl(12,25z2004);display(dl,tl)

35、;return 0;11：include using namespace std;class Time;class Datepublic:Date(intjntjnt);friend Time;private:int month;int day;int year;)；Date:Date(int m,int d,int y):month(m),day(d),year(y)class Timepublic:Time(int,intzint);void display(const Date&);private:int hour;int minute;int sec;；Time:Time(int hj

36、nt m,int s):hour(h)/minute(m),sec(s)void Time:display(const Date&d)(coutd.m onth7d.day7d.yearendl;couthour:minute:secendl;int main()(Timetl(10z13,56);Datedl(12,25,2004);tl.display(dl);return 0;12：#include using namespace std;templateclass Comparepublic:Compare(numtype a,numtype b);numtype max();numt

37、ype min();private:numtype x,y;template Compare:Compare(numtype a,numtype b)x=a;y=b;template numtype Compare:max()return(xy)?x:y;template numtype Compare:min()return(xy)?x:y;int main()Compare cmpl(3,7);coutcmpl.max()is the Maximum of two integer numbers.endl;coutcmpl.min()is the Minimum of two intege

38、r numbers.endlendl;Compare cmp2(45.78z93.6);coutcmp2.max()is the Maximum of two float numbers,endl;coutcmp2.min()is the Minimum of two float numbers.endlendl;Compare cmp3(a7A);coutcmp3.max()is the Maximum of two characters.endl;coutcmp3.min()is the Minimum of two characters.endl;return 0;)第四章1:#incl

39、ude using namespace std;class Complexpublic:Complex()real=0;imag=0;Complex(double r,double i)real=r;imag=i;double get_real();double get_imag();void display();private:double real;double imag;；double Complex:get_reaI()return real;double Complex:getjmag()return imag;void Complex:display()cout,(real/ima

40、gi)endl;Complex operator+(Complex&cl,Complex&c2)(return Complex(cl.get_real()+c2.get_real()/cl.getjmag()+c2.get_imag();int main()Complex cl(3,4),c2(5,-10),c3;c3=cl+c2;coutc3=H;c3.display();return 0;)2:include using namespace std;class Complexpublic:Complex()real=0;imag=0;Complex(double r,double i)re

41、al=r;imag=i;Complex operator+(Complex&c2);Complex operator-(Complex&c2);Complex operator*(Complex&c2);Complex operator/(Complex&c2);void display();private:double real;double imag;);Complex Complex:operator+(Complex&c2)Complex c;c.real=real+c2.real;c.imag=imag+c2.imag;return c;Complex Complex:operato

42、r-(Complex&c2)Complex c;c.real=real-c2.real;c.imag=imag-c2.imag;return c;Complex Complex:operator*(Complex&c2)Complex c;c.real=real*c2.real-imag*c2.imag;c.imag=imag*c2.real+real*c2.imag;return c;Complex Complex:operator/(Complex&c2)Complex c;c.real=(real*c2.real+imag*c2.imag)/(c2.real*c2.real+c2,ima

43、g*c2.imag);c.imag=(imag*c2.real-real*c2.imag)/(c2.real*c2,real+c2.imag*c2.imag);return c;void Complex:display()cout,(real，7，im agi),endl;int main()Complex cl(3,4),c2(5,-10),c3;c3=cl+c2;coutcl+c2=;c3.display();c3=cl-c2;coutcl-c2=;c3.display();c3=cl*c2;coutcl*c2=;c3.display();c3=cl/c2;coutcl/c2=;c3.di

44、splay();return 0;)3:#include 用 VC+时改为：include using namespace std;用 VC+时为取消此行class Complexpublic:Complex()real=0;imag=0;Complex(double r,double i)real=r;imag=i;Complex operator+(Complex&c2);Complex operator+(int&i);friend Complex operator+(int&,Complex&);void display();private:double real;double ima

45、g;);Complex Complex:operator+(Complex&c)return Complex(real+c.realjmag+c.imag);Complex Complex:operator+(int&i)return Complex(real+i,imag);void Complex:display()cout(real/im agi),endl;Complex operator+(int&i,Complex&c)return Complex(i+c.real,c.imag);int main()Complex cl(3,4),c2(5,-10),c3;int i=5;c3=

46、cl+c2;coutcl+c2=;c3.display();c3=i+cl;couti+cl=;c3.display();c3=cl+i;cout*cl+i=;c3.display();return 0;)4:include using namespace std;class Matrixpublic:Matrix();friend Matrix operator+(Matrix&,Matrix&);void input();void display();private:int mat23;)；定义Matrix类默认构造函数重载运算符“+”输入数据函数输出数据函数Matrix:Matrix()

47、for(int i=0;i2;i+)for(int j=O;j3;j+)matij=O;)Matrix operator+(Matrix&a,Matrix&b)Matrix c;for(int i=0;i2;i+)for(int j=O;j3;j+)c.matij=a.matij+b.matij;return c;)void Matrix:input()coutinput value of matrix:endl;for(int i=0;i2;i+)for(int j=O;j3;j+)定义构造函数定义重载运算符“+”函数定义输入数据函数cinmatij;void Matrix:display(

48、)for(int i=0;i2;i+)定义输出数据函数for(int j=O;j3;j+)coutmatij;coutendl;)int main()Matrix a,b,c;a.input();b.input();coutendlMatrix a:endl;a.display();coutendlMatrix b:endl;b.display();c=a+b;用重载运算符“+”实现两个矩阵相加coutendlMatrix c=Matrix a+Matrix b:endl;c.display();return 0;)5:ttinclude/using namespace std;class M

49、atrixpublic:Matrix();friend Matrix operator+(Matrix&,Matrix&);friend ostream&operator(ostream&,Matrix&);friend istream&operator(istream&,Matrix&);private:int mat23;；Matrix:Matrix()for(int i=0;i2;i+)for(int j=0;j3;j+)matij=O;)Matrix operator+(Matrix&a,Matrix&b)Matrix c;for(int i=0;i2;i+)for(int j=0;j

50、3;j+)c.matij=a.matij+b.matij;)return c;)istream&operator(istream&in,Matrix&m)coutinput value of matrix:endl;for(int i=0;i2;i+)for(int j=O;j3;j+)inm.matij;return in;ostream&operator(ostream&out,Matrix&m)for(int i=0;i2;i+)for(int j=0;j3;j+)outm.matij；outendl;return out;)int main()Matrix a,b,c;cina;cin