《面向?qū)ο蟪绦蛟O(shè)計c++》復習題

《面向?qū)ο蟪绦蛟O(shè)計》綜合復習題集一、程序填充已知一個類的定義如下：#include<iostream.h>classAA{intintn;public:voidSetA(intaa[],intnn);//用數(shù)組aa初始化數(shù)據(jù)成員a，//用nn初始化數(shù)據(jù)成員nintMaxA();//從數(shù)組a中前n個元素中查找最大值voidSortA();//采用選擇排序的方法對數(shù)組a中前n個元素//進行從小到大排序voidPrintA();//依次輸出數(shù)組a中的前n個元素，//最后輸出一個換行};使用該類的主函數(shù)如下：voidmain(){inta[10]={23,78,46,55,62,76,90,25,38,42}; AAx ;x.SetA(a,8);int m _m=x.MaxA() ;x.PrintA();cout<<m<<endl;}90(1) (2) (3)classAchar*a;public:A(){a=NULL;} aA(char*aa){a=_newchar[strlen(aa)];strcpy(a,aa);//用aa所指字符串初始化a所指向的動態(tài)存儲空間}~A(){delete[]a;}//定義析構(gòu)函數(shù)，刪除a所指向的動態(tài)存儲空間};(1) (2) (3)33．classA{inta,b;public:A(intaa=0,intbb=0){a=aa;b=bb;}//分別用aa和bb對應初始化a和b};main(){Ax(5),y(x);//定義類A的對象x并用5初始化，同時定義y并用x初始化A*p=&x;//定義p指針，使之指向?qū)ο髕}(1) (2) (3)classA{inta,b;public: (1) A_(intaa=0,intbb=0)定義構(gòu)造函數(shù)，使參數(shù)aa和bb的默認值為A=aa;b=bb; 在函數(shù)體中用aa初始化a，用bb初始化b};main(){A*p1,*p2; (2)p1=newA(); ;p1 (3)_p2=newA(4,5) ;p2ab45}(1) (2) (3)#include<iostream.h>#include<stdlib.h>classA{int*a;intn;intMaxLen;public:A():a(0),n(0),MaxLen(0){}A(int*aa,intnn,intMM){n=nn;MaxLen=MM;if(n>MaxLen) (1)_a=newint[MaxLen] ;a指向長度為MaxLenfor(inti=0;i<n;i++)a[i]=aa[i];}~A(){delete[]a;}intGetValue(inti) (2) a[i]的值};voidmain(){intb[10]={1,2,3,4,5,6,7,8,9,10};Ar(b,10,10);inti,s=0;for(i=0;i<10;i++); (3) ra//元素值依次累加到s中cout<<"s="<<s<<endl;}(1) (2) (3)#include<iostream.h>#include<stdlib.h>classA{int*a;intn;intMaxLen;public:A():a(0),n(0),MaxLen(0){}A(int*aa,intnn,intMM){n=nn;MaxLen=MM;if(n>MaxLen)exit(1);a=newint[MaxLen]; (1) ;iaa//傳送給a數(shù)組的對應元素中}~A();intGetValue(inti){returna[i];}//函數(shù)體返回a[i]的值}; (2)

//析構(gòu)函數(shù)的類外定義voidmain(){intb[10]={1,2,3,4,5,6,7,8,9,10};Ar(b,10,10);inti,s=0; (3) ;ir對象的a//每個元素值依次累加到s中cout<<"s="<<s<<endl;}(1) (2) (3)classGoods{private:chargd_name[20]; 商品名稱intweight; 商品重量staticinttotalweight; 同類商品總重public:Goods(char*str,intw){ strcpy(gd_name,str);weight=w;totalweight+=weight;}~Goods(){totalweight-=weight;}char*GetN(){ (1) ;}intGetW(){returnweight;} (2)

GetTotal_Weight(){//定義靜態(tài)成員函數(shù)返回總重量 (3) ;}}(1) (2) (3)7.classPoint{private:intx,public:Point(){x=y=0;}Point(intx0,inty0)intGetX(){returnx;}intGetY(){returny;}voidPrint(){cout<<"Point("<<x<<","<<y<<")"<<endl;} (1) ;友元函數(shù)聲明 (2) ;友元函數(shù)聲明};Pointoperator+(Point&pt,intdd)//加號操作符重載函數(shù)，實現(xiàn)Point類對象與整數(shù)加法{Pointtemp=pt;temp.x+=dd;temp.y+=dd;returntemp;}Pointoperator+(Point&pt1,Point&pt2)//加號操作符重載函數(shù)，實現(xiàn)兩個Point類對象的加法{Pointtemp=pt1;temp.x+=pt2.x; (3) ;return}(1) (2) (3)Derived類是由直接基類Base1和Base2類包含有兩個間接基類BaseBase，在初始化函數(shù)Init中，需要把x1x2于基類Base1xBase2xclassBaseBase{protected:intx;public:BaseBase(){x=1;}};classBase1:publicBaseBase{public:Base1(){}};classBase2:publicBaseBase{public:Base2(){}};classDerived: (1) {public:Derived(){}voidInit(intx1,intx2){ (2) ; (3) ;}voidoutput(){cout<<Base1::x<<''<<Base2::x<<endl;}};(1) (2) (3)在下面一段類定義中，Derived類公有繼承了基類Base容給出了功能。classBase{private:intmem1,mem2; public:Base(intm1,intm2){mem1=m1;mem2=m2;}voidoutput(){cout<<mem1<<''<<mem2<<'';}//...};classDerived:publicBase{private:intmem3; public://m1m2分別初始化mem1和mem2m3初始化mem3Derived(intm1,intm2,intm3);//輸出mem1,mem2和mem3數(shù)據(jù)成員的值voidoutput(){ (1) ;cout<<mem3<<endl;}//...};Derived::Derived(intm1,intm2,intm3): (2) { (3) (1) (2) (3)在下面一段類的定義中，需要填充的函數(shù)由注釋內(nèi)容給出了功能。classPoint//定義坐標點類{public:intx,y; Point(){x=0;y=0;}Point(intx0,inty0){x=x0;intX(){returnx;}intY(){returny;}voidPrintP(){cout<<"Point:("<<x<<","<<y<<")"<<endl;}};classLine:publicPoint 利用坐標點類定義直線類{private:classPointpt1,pt2; public:Line(Pointpts,Pointpte);doubleDx(){returnpt2.x-pt1.x;}doubleDy(){returnpt2.y-pt1.y;}doubleLength(){returnsqrt( (1) );};voidPrintL();//輸出直線的兩個端點和直線長度};Line::Line(Pointpts,Pointpte) (2) voidLine::PrintL(){cout<<"1st";pt1.PrintP();cout<<"2nd";pt2.PrintP();cout<<"TheLengthofLine:"<< (3) <<endl;}(1) (2) (3)類，摩托車類的基類為自行車類和機動車類，類之間均為公有繼承。classvehicle//車輛類{private:intMaxSpeed;最大車intWeight; 車重public:vehicle(){MaxSpeed=0;Weight=0;};virtualvoidRun(){cout<<"Avehicleisrunning!"<<endl;}};classbicycle: (1) {

//自行車類private:intHeight;//車高public:bicycle(){};voidRun(){cout<<"Abicycleisrunning!"<<endl;}};classmotorcar: (2) {

//機動車類private:intSeatNum;public:motorcar(){};voidRun(){cout<<"Amotorcarisrunning!"<<endl;}};classmotorcycle: (3) {

//摩托車類public:motorcycle(){};voidRun(){cout<<"Amotorcycleisrunning!"<<endl;}};(1) (2) (3)二、讀程序?qū)懗鲞\行結(jié)果1./*************test.h***********************/#include<iostream.h>classPoint{public:voidInitP(floatx0=0,floaty0=0){X=x0;Y=y0;}voidMove(floatxf,floatyf){X+=xf;Y+=yf;}floatGetX(){returnX;}float{returnY;}private:floatX,Y;};classRectangle:publicPoint{public:voidInitR(floatx,floaty,floatw,floath){InitP(x,y);W=w;H=h;}voidZoomR(floatk){W*=k,H*=k;}floatGetH(){returnH;}floatGetW(){returnW;}private:floatW,H;};//**************************test.cpp************************//#include"test.h"voidmain(){Rectanglerect;rect.InitR(10,20,30,40);cout<<rect.GetX()<<","<<rect.GetY()<<","<<rect.GetW()<<","<<rect.GetH()<<endl;rect.Move(5,6);cout<<rect.GetX()<<","<<rect.GetY()<<","<<rect.GetW()<<","<<rect.GetH()<<endl;rect.ZoomR(7);cout<<rect.GetX()<<","<<rect.GetY()<<","<<rect.GetW()<<","<<rect.GetH()<<endl;}2.//*********************test.h********************//#include<iostream.h>classBase{public:virtualvoidSet(intb){x=b;}virtualintGet(){returnprivate:intx;};classDerived:publicBase{public:voidSet(intd){y=d;}intGet(){returny;}private:inty;};//**************************test.cpp************************//#include"test.h"voidmain(){BaseB_obj;DerivedD_obj;Base*p=&B_obj;p->Set(100);cout<<"B_objx="<<p->Get()<<endl;p=&D_obj;p->Set(200);cout<<"D_objy="<<p->Get()<<endl;p->Base::Set(300);cout<<"B_objx="<<p->Base::Get()<<endl;p->Set(p->Get()+200);cout<<"D_objy="<<p->Get()<<endl;}40.#include<iostream.h>classPoint{intx,y;public:Point(intx1=0,inty1=0):x(x1),y(y1){//X=x1;//Y=y1;cout<<"Point:"<<x<<''<<y<<'\n';}~Point(){cout<<"Pointdestructor!\n";}};classCircle{Pointcenter; //圓心位intradius; 半徑public:Circle(intcx,intcy,intr):center(cx,cy),radius(r)cout<<"Circleradius:"<<radius<<'\n';}~Circle(){cout<<"Circledestructor!\n";}};voidmain(){Circlec(3,4,5);}3.#include<iostream.h>#include<string.h>classPoint{intx,y;public:Point(intx1=0,inty1=0):x(x1),y(y1){cout<<"Point:"<<x<<''<<y<<'\n';}~Point(){cout<<"Pointdes!\n";}};classText{chartext[100];public:Text(char*str){strcpy(text,str);cout<<"Text}~Text(){cout<<"Textdes!\n";}};classCircleWithText:publicPoint,publicText{public:CircleWithText(intcx,intcy,char*msg):Point(cx,cy),Text(msg){cout<<"PointwithTextcon!\n";}~CircleWithText(){cout<<"PointwithTextdes\n";}};voidmain(){CircleWithTextcm(3,4,"hello");CircleWithText}4.#include<iostream.h>classDate{public:voidOutdate(inty,intm,intd){Year=y;Month=m;Day=d;}voidPrintDate(){cout<<Year<<"/"<<Month<<"/"<<Day<<endl;}Date(){Outdate(2000,1,1);}Date(inty,intm,intd){Outdate(y,m,d);}protected:intYear,Month,Day;};classTime{public:voidSetTime(inth,intm,ints){Houre=h;Minutes=m;Seconds=s;}voidPrintTime(){cout<<Houre<<":"<<Minutes<<":"<<Seconds<<endl;}Time(){SetTime(0,0,0);}Time(inth,intm,ints){SetTime(h,m,s);}protected:intHoure,Minutes,Seconds;};classDate_Time:publicDate,publicTime{public:Date_Time():Date(),Time(){};Date_Time(inty,intmo,intd,inth,intmi,ints):Date(y,mo,d),Time(h,mi,s){}voidPrintDate_Time(){PrintDate();PrintTime();}};voidmain(){Date_Timedt_a,dt_b(2002,10,1,6,0,0);dt_a.PrintDate_Time();dt_b.SetTime(23,59,59);dt_b.PrintDate_Time();dt_a.Outdate(2002,12,31);dt_a.PrintDate_Time();}5.#include<iostream.h>classDate{public:Date(inty=2001,intm=1,intd=1){Year=y;Month=m;Day=d;}voidPrintDate(){cout<<Year<<"/"<<Month<<"/"<<Day<<endl;}protected:intYear,Month,Day;};classTime{public:Time(inth=5,intm=30,ints=0){Houre=h;Minutes=m;Seconds=s;}voidPrintTime(){cout<<Houre<<":"<<Minutes<<":"<<Seconds<<endl;}protected:intHoure,Minutes,Seconds;};classDate_Time:publicDate,publicTime{public:Date_Time(){};Date_Time(inty,intmo,intd,inth=0,intmi=0,ints=0):Date(y,mo,d),Time(h,mi,s){}voidPrintDate_Time(){PrintDate();PrintTime();}};voidmain(){Date_Timea,b(2002,10,1,6,20,0),c(2003,3,8,6,7);a.PrintDate_Time();b.PrintDate_Time();c.PrintDate_Time();}三、程序改錯是鏈表結(jié)點的結(jié)構(gòu)，appendToListlistxstructNODE{intdata;NODE*next;};NODE*appendToList(NODE*list,intx){ //1NODE*p=newNODE();int; //2p->data=x; //3行p->next=NULL; //4if(list==NULL)returnp; //5NODE*p1=list; //6while(p1->next!=NULL)p1=p1->next; //7行，鏈表非空先找到表尾p1=p; //8行讓原表尾指針指向新添加結(jié)點returnlist;}錯誤行的行號。分別改正和 。是鏈表結(jié)點的結(jié)構(gòu)，addToList一個值為x的新結(jié)點添加到以pliststructNODE{intdata;NODE*next;};NODE*adndToList(NODE*plist,intx){ //1NODE*p; //2*p=newNODE; //3p->data=x; //4p->next=NULL; //5plist=p; //6returnp; //7}錯誤行的行號。分別改正和 。出錯誤語句行的行號并改正錯誤行。#include<iostream.h>classFranction{//定義分數(shù)類intnume;//定義分子intdeno;public://把*this化簡為最簡分數(shù)，具體定義在另外文件中實現(xiàn)voidFranSimp();//返回兩個分數(shù)*this和x之和，具體定義在另外文件中實現(xiàn)FranctionFranAdd(constFranction&x);01voidInitFranction(){nume=0;deno=1;}置分數(shù)的分子和分母分別ndvoidInitFranction(intn,intd){nume=n;deno=d;}//輸出一個分數(shù)voidFranOutput(){cout<<nume<<'/'<<deno<<endl;}};voidmain()//1{//2Franctiona,b,c;//3a.InitFranction(6,15);//4b.InitFranction(1);//5c.InitFranction();//6c=FranAdd(a,b);//7cout<<c.nume<<’/’<<c.deno<<endl;//8}//9錯誤行的行號和 。分別改正、 和 。出錯誤語句行的行號并改正。#include<iostream.h>classFranction{//定義分數(shù)類intnume;//定義分子intdeno;public://把*this化簡為最簡分數(shù)，具體定義在另外文件中實現(xiàn)voidFranSimp();//返回兩個分數(shù)*this和x之和，具體定義在另外文件中實現(xiàn)FranctionFranAdd(constFranction&x);01voidInitFranction(){nume=0;deno=1;}置分數(shù)的分子和分母分別ndvoidInitFranction(intn,intd){nume=n;deno=d;}//輸出一個分數(shù)voidFranOutput(){cout<<nume<<'/'<<deno<<endl;}};voidmain()//1{//2Franction*a=newFranction;//3Franction*b=newFranction;//4a->InitFranction(6,15);//5b.InitFranction(3,4);//6Franctionc;//7c.InitFranction();//8c=a.FranAdd(b);//9cout<<c.FranOutput()<<endl;//10}//11錯誤行的行號和 。分別改正、 和 。下面是一個類的定義，存在著3classCE{ //1private: //2inta,b; //3intGetMin(){return(a<b?a:b);} //4public //5intc; //6voidSetValue(intx1,intx2,intx3){ //7a=x1;b=x2;c=x3; //8行}; //9intGetMin(); //10}; //11intCE::GetMin(){ //12intd=getmin(); //13return(d<c?d:c); //14} //16錯誤行的行號和 。分別改正、 和 。下面程序段第4-10行中存在著三條語句的語法錯誤，請指出錯誤語句的行號并改正。classA{ //1inta,b; //2constintc; //3public //4A():c(0);a(0);b(0){} //5A(intaa,intbb)c(aa+bb);{a=aa;b=bb;} //6}; //7Aa,b(1,2); //8A*x=&a,&y=b; //9A*z=newA,w[10]; //10錯誤行的行號和 。分別改正、 。Public:A():c(0),a(0),b(0){}A(intaa,intbb):c(aa+bb){a=aa;b=bb;}下面程序段第4-9行中存在著三條語句錯誤，請指出錯誤語句的行號并說明原因classA{ //1行inta,b; //2constintc; //3public: //4A(){a=b=c=0;} //5A(intaa,intbb):c(aa+bb){a=aa;b=bb;} //6}; //7Aa,b(1,2,3); //8Ax(2,3),y(4); //9錯誤行的行號和 。錯誤原因分別、 和 。下面程序段第10-17行中存在著三條語句錯誤請指出錯誤語句的行號并說明原因classA{ //1行inta; //2public: //3A(intaa=0):a(aa){} //4}; //5classB{ //6inta,b; //7constintc; //8Ad; //9public: //10B():c(0){a=b=0;} //11B(intaa,intbb):d(aa+bb){ //12a=aa;b=bb;c=aa-bb; //13} //14} //15Ba,b(1,2); //16Bx=a,y(b),z(1,2,3),; //17錯誤行的行號和 。錯誤原因分別。d=800,f=64-23請指出錯誤語句的行號并改正。#include<iostream.h>classA{inta[10];intpublic://1//2//3A(intaa[],intnn):n(nn){//4for(inti=0;i<n;i++)aa[i]=a[i];//5}//6intGet(inti){returna[i];}//7intSumA(intn);//8};//9intA::SumA(intn){//10ints=0;//11for(intj=0;j<n;j++)s+=a[j];//12returns;//13}//14voidmain(){//15inta[]={2,5,8,10,15,20};//16Ax(a,6);//17intd=1; //18for(inti=0;i<4;i++)d*=x.a[i]; //19intf=SumA(6); //20cout<<"d="<<d<<’,’; //21cout<<"f="<<f<<endl; //22行} //23錯誤行的行號和 。51920分別改正、 和 。下面是分數(shù)類fract41/28，請指出錯誤所在行的行號并給出改正意見。classfract{intden; 分intnum; 分public:fract(intd=0,intn=1):den(d),num(n){}friendfract&operator+=(fract,fract&);//1//2voidshow(){cout<<den<<'/'<<num;}//3};//4friendfract&operator+=(fractf1,fractf2)//5{//7f1.den=f1.den*f2.num+f1.num*f2.den;//8f1.num*=f2.num;//9returnf1;//10}voidmain(){fractfr(3,4);fr+=fract(5,7);fr.show();}錯誤行的行號。分別改正八、程序設(shè)計根據(jù)下面類中Compare函數(shù)成員的原型和注釋寫出它的類外定義。classAA{int*a;intn;intMS;public:voidInitAA(intaa[],intnn,intms){if(nn>ms){cout<<"Error!"<<endl;exit(1);}MS=ms;n=nn;a=newint[MS];for(inti=0;i<MS;i++)a[i]=aa[i];}intCompare(AAb);//比較*this與b的大小，若兩者中//的n值相同，并且數(shù)組中前n個元素值對應//相同，則認為兩者相等返回1，否則返回0。};根據(jù)下面類中構(gòu)造函數(shù)的原型和注釋寫出它的類外定義。classArray{int*a;指向動態(tài)分配的整型數(shù)組空intn; 記錄數(shù)組長度public:Array(intaa[],intnn);//構(gòu)造函數(shù)，利用aa數(shù)組長度nn初始化n，//利用aa數(shù)組初始化a所指向的數(shù)組空間Array(Array&aa); 拷貝構(gòu)造函數(shù)Array&Give(Array&aa);實現(xiàn)aa賦值*this的功能并返A(chǔ)rrayUion(Array&aa); 實*this和aa中的數(shù)組合并的//功能，把合并結(jié)果存入臨時對象并返回intLenth(){returnn;}//返回數(shù)組長度voidPrint(){ for(inti=0;i<n;i++)cout<<a[i]<<'';cout<<endl;}};根據(jù)下面類中拷貝構(gòu)造函數(shù)的原型寫出它的類外定義。classArray{int*a;指向動態(tài)分配的整型數(shù)組空intn; 記錄數(shù)組長度public:Array(intaa[],intnn);//構(gòu)造函數(shù)，利用aa數(shù)組長度nn初始化n，//利用aa數(shù)組初始化a所指向的數(shù)組空間Array(Array&aa);//拷貝構(gòu)造函數(shù)Array&Give(Array&aa);實現(xiàn)aa賦值*this的功能并返A(chǔ)rrayUion(Array&aa); 實*this和aa中的數(shù)組合并的//功能，把合并結(jié)果存入臨時對象并返回intLenth(){returnn;}//返回數(shù)組長度voidPrint(){ for(inti=0;i<n;i++)cout<<a[i]<