c++面向对象程序设计课后习题答案Word下载.docx

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c++面向对象程序设计课后习题答案Word下载.docx

if(z<

m)m=z;

return(m);

8:

#include<

b;

a+b<

}

9:

{intadd(intx,inty);

c=add(a,b);

intadd(intx,inty)

{intc;

c=x+y;

return(c);

10:

{voidsort(intx,inty,intz);

intx,y,z;

x>

y>

z;

sort(x,y,z);

voidsort(intx,inty,intz)

inttemp;

if(x>

y){temp=x;

x=y;

y=temp;

}2-4-12-4-22-5-12-5-2Boxbox1Boxbox1core;

intk=0;

for(inti=1;

i<

5;

i++)

if(arr[i].score>

max_score){max_score=arr[i].score;

k=i;

arr[k].num<

"

max_score<

classStudent

{public:

Student(intn,floats):

num(n),score(s){}

voidchange(intn,floats){num=n;

score=s;

voiddisplay(){cout<

num<

score<

private:

intnum;

floatscore;

};

{Studentstud(101,;

();

(101,;

解法一

{public:

voiddisplay(){cout<

otal();

Product:

:

display();

}

10:

classDate;

classTime

Time(int,int,int);

friendvoiddisplay(constDate&

constTime&

);

inthour;

intminute;

intsec;

Time:

Time(inth,intm,ints)

{hour=h;

minute=m;

sec=s;

classDate

Date(int,int,int);

intmonth;

intday;

intyear;

Date:

Date(intm,intd,inty)

{month=m;

day=d;

year=y;

voiddisplay(constDate&

d,constTime&

t)

{

/"

Timet1(10,13,56);

Dated1(12,25,2004);

display(d1,t1);

11:

classTime;

Date(int,int,int);

friendTime;

private:

Date(intm,intd,inty):

month(m),day(d),year(y){}

voiddisplay(constDate&

Time:

Time(inth,intm,ints):

hour(h),minute(m),sec(s){}

voidTime:

display(constDate&

d)

hour<

minute<

sec<

(d1);

12:

template<

classnumtype>

classCompare

Compare(numtypea,numtypeb);

numtypemax();

numtypemin();

numtypex,y;

template<

Compare<

numtype>

Compare(numtypea,numtypeb)

{x=a;

y=b;

numtypeCompare<

max()

{return(x>

y)x:

y;

min()

{return(x<

{Compare<

int>

cmp1(3,7);

()<

istheMaximumoftwointegernumbers."

istheMinimumoftwointegernumbers."

endl<

Compare<

float>

cmp2,;

istheMaximumoftwofloatnumbers."

cout<

istheMinimumoftwofloatnumbers."

char>

cmp3('

a'

'

A'

istheMaximumoftwocharacters."

istheMinimumoftwocharacters."

第四章

1:

classComplex

Complex(){real=0;

imag=0;

Complex(doubler,doublei){real=r;

imag=i;

doubleget_real();

doubleget_imag();

voiddisplay();

doublereal;

doubleimag;

doubleComplex:

get_real()

{returnreal;

get_imag()

{returnimag;

voidComplex:

display()

{cout<

("

real<

"

imag<

i)"

Complexoperator+(Complex&

c1,Complex&

c2)

returnComplex()+(),()+());

{Complexc1(3,4),c2(5,-10),c3;

c3=c1+c2;

c3="

2:

Complexoperator+(Complex&

c2);

Complexoperator-(Complex&

Complexoperator*(Complex&

Complexoperator/(Complex&

ComplexComplex:

operator+(Complex&

{Complexc;

=real+;

=imag+;

returnc;

operator-(Complex&

=;

operator*(Complex&

=real**;

=imag*+real*;

operator/(Complex&

=(real*+imag*/*+*;

=(imag**/*+*;

c1+c2="

c3=c1-c2;

c1-c2="

c3=c1*c2;

c1*c2="

c3=c1/c2;

c1/c2="

3:

"

president"

135BeijingRoad,Shanghai"

(021)"

;

();

10:

cstring>

classTeacherum<

staf[i].name<

staf[i].age<

staf[i].pay<

((char*)&

staf[i],sizeof(staf[i]));

pleaseinputdatayouwantinsert:

for(i=0;

2;

{cin>

(0,ios:

end);

staf1,sizeof(staf1));

beg);

7;

{((char*)&

staf[i].num<

boolfind;

enternumberyouwantsearch,enter0tostop."

num;

while(num)

{find=false;

{((char*)&

if(num==staf[i].num)

{m=();

isNo."

m/sizeof(staf1)<

find=true;

break;

if(!

find)

can'

tfind"

6:

解法一

strstream>

structstudent

{intnum;

charname[20];

doublescore;

};

{studentstud[3]={1001,"

Li"

78,1002,"

Wang"

,1004,"

Fun"

90},stud1[3];

charc[50];

inti;

ostrstreamstrout(c,50);

3;

strout<

stud[i].num<

stud[i].name<

stud[i].score<

ends;

arrayc:

istrstreamstrin(c,50);

strin>

stud1[i].num>

stud1[i].name>

stud1[i].score;

datafromarrayctoarraystud1:

stud1[i].num<

stud1[i].name<

stud1[i].score<

解法二

{inti;

studentstud[3]={1001,"

strstreamstrio(c,50,ios:

in|ios:

out);

strio<

strio>

第八章

cmath>

doubleq(double,double,double);

voidmain()

{doublea,b,c,p,x1,x2;

pleaseentera,b,c:

p=-b/(2*a);

try

{x1=p+q(a,b,c);

x2=p-q(a,b,c);

x1="

x1<

x2="

x2<

catch(doubled)

{cout<

a="

a<

b="

b<

c="

disc="

d<

error!

end"

doubleq(doublea,doubleb,doublec)

{doubledisc;

disc=b*b-4*a*c;

if(disc<

0)throwdisc;

returnsqrt(disc)/(2*a);

2:

string>

Student(intn,stringnam)

constructor-"

n<

num=n;

name=nam;

~Student(){cout<

destructor-"

voidget_data();

stringname;

voidStudent:

get_data()

{if(num==0)thrownum;

elsecout<

name<

inget_data()"

voidfun()

{Studentstud1(1101,"

tan"

{Studentstud2(0,"

catch(intn)

num="

mainbegin"

callfun()"

fun();

mainend"

//mainfile

#include"

usingnamespacestudent1;

{Studentstud1(1001,"

18,"

123BeijingRoad,Shanghua"

student2:

Studentstud2(1102,"

f'

//,文件名为

namespacestudent1

{classStudent

Student(intn,stringnam,inta,stringaddr)

{num=n;

age=a;

address=addr;

voidshow_data();

intage;

stringaddress;

voidStudent:

show_data()

num:

name:

age:

age

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