c++上機(jī)考試練習(xí)題

第16周面向?qū)ο蛏蠙C(jī)實(shí)驗(yàn)練習(xí)題類和對象已知一個(gè)名為Complex的復(fù)數(shù)類，這個(gè)類包含：（1）私有成員：實(shí)部、虛部，且均為int型（2）公有的帶默認(rèn)形參值的構(gòu)造函數(shù)、復(fù)制構(gòu)造函數(shù)（3）公有成員函數(shù)Display，其作用為顯示復(fù)數(shù)要求：（1）實(shí)現(xiàn)滿足上述屬性和行為的Complex類定義；（2）設(shè)計(jì)函數(shù)AddComplex，函數(shù)AddComplex功能為實(shí)現(xiàn)兩個(gè)復(fù)數(shù)相加，要求該函數(shù)的形參為復(fù)數(shù)類的常引用；（3）保證如下主函數(shù)能正確運(yùn)行，intmain(){Complexc0(2,-3);Complexc1(c0);cout<<"c1is:";c1.Display();Complexc2(3,4);cout<<"c2is:";c2.Display();Complexc3;c3=AddComplex(c1,c2);cout<<"c3is:";c3.Display(); return0;}且輸出結(jié)果如下：c1is:2-3ic2is:3+4ic3is:5+1i已知表示點(diǎn)的類CPoint和表示線段的CLine類，類CPoint包含：（1）表達(dá)點(diǎn)位置的私有數(shù)據(jù)成員x,y（2）構(gòu)造函數(shù)及復(fù)制構(gòu)造函數(shù)類CLine包含：（1）兩個(gè)CPoint的點(diǎn)對象（該兩點(diǎn)分別為線段的兩個(gè)端點(diǎn)）（2）構(gòu)造函數(shù)（提示：構(gòu)造函數(shù)中用初始化列表對內(nèi)嵌對象進(jìn)行初始化）（3）公有成員函數(shù)GetLen，其功能為返回線段的長度（4）類屬性成員count用于記錄創(chuàng)建的CLine類對象的個(gè)數(shù)，及用于顯示count值的ShowCount函數(shù)；要求：（1）實(shí)現(xiàn)滿足上述屬性和行為的CPoint類及CLine類定義；（2）保證如下主函數(shù)能正確運(yùn)行，#include<iostream>usingnamespacestd;intmain(){ CPointp1(1,1); CPointp2(4,5); CLineline1(p1,p2); cout<<"thelengthofline1is:"<<line1.GetLen()<<endl; CPointp3(0,0); CLineline2(line1); cout<<"Thecountoflineis:"<<CLine::ShowCount()<<endl;return0;}且輸出結(jié)果如下：Thelengthofline1is:5ThecountofLineis:2繼承、派生已知Point類的聲明如下：#include<iostream>usingnamespacestd;//Point類的聲明classPoint {public: //外部接口 Point();//構(gòu)造函數(shù)Point(intxx,intyy);//構(gòu)造函數(shù) Point(Point&p); //拷貝構(gòu)造函數(shù) intGetX()const{returnX;} intGetY()const{returnY;}voidmove(intnewx,intnewy){x=newx;y=newy;}~Point(){}private: //私有數(shù)據(jù) intX,Y;};classArrayofPoints{Point&element(intindex){assert(index>=0&&index<size);//size為數(shù)組大小returnpoints[index];}}；//計(jì)算任意兩點(diǎn)之間的距離intL1Distance(intx1,inty1,intx2,inty2){return(abs(x1-x2)+abs(y1-y2));}請給出Point類的構(gòu)造函數(shù)，并參照下圖創(chuàng)建動(dòng)態(tài)數(shù)組類ArrayofPoints，實(shí)現(xiàn)主函數(shù)。請自行補(bǔ)充需要的頭文件。//主程序intmain(){intcount; cout<<”PleaseenterthecountofPoints”<<endl;cin>>count;ArrayofPointsArrPoints(count);ArrPoints.element(0).move(5,10);ArrPoints.element(1).move(15,20); cout<<”Thedistanceis”<<endl;cout<<L1Distance(ArrPoints.element(0).GetX(),ArrPoints.element(0).GetY(),ArrPoints.element(1).GetX(),ArrPoints.element(1).GetY()<<endl;}參考程序：#include<iostream>#include<math.h>#include<assert.h>usingnamespacestd;classPoint {public: //外部接口 Point();//構(gòu)造函數(shù) Point(intxx,intyy);//構(gòu)造函數(shù) Point(Point&p); //拷貝構(gòu)造函數(shù) intGetX()const{returnx;} intGetY()const{returny;} voidmove(intnewx,intnewy){x=newx;y=newy;} ~Point(){}private: //私有數(shù)據(jù) intx,y;};Point::Point(){ x=0;y=0;}Point::Point(intxx,intyy){ this->x=xx; this->y=yy;}classArrayofPoints{public: ArrayofPoints(intsize){ this->size=size; } ~ArrayofPoints(){ } Point&element(intindex){assert(index>=0&&index<size);//size為數(shù)組大小Pointpoints[index];returnpoints[index]; }private: intsize;};intL1Distance(intx1,inty1,intx2,inty2){return(abs(x1-x2)+abs(y1-y2));}intmain(){ intcount; cout<<"PleaseenterthecountofPoints"<<endl; cin>>count; ArrayofPointsArrPoints(count); ArrPoints.element(0).move(5,10); ArrPoints.element(1).move(15,20); cout<<"Thedistanceis"<<endl; cout<<L1Distance(ArrPoints.element(0).GetX(),ArrPoints.element(0).GetY(),ArrPoints.element(1).GetX(),ArrPoints.element(1).GetY())<<endl; return0;}定義一個(gè)Date類，有整型數(shù)據(jù)成員year,month,day，成員函數(shù)Display用于顯示日期；定義DateTime類，從Date類公有派生而來，在DateTime類中增加數(shù)據(jù)成員hour,minute,second,設(shè)計(jì)一個(gè)成員函數(shù)Display用于顯示日期時(shí)間信息。參考程序：#include<iostream>usingnamespacestd;classData{public: Data(intyear,intmonth,intday){ this->year=year; this->month=year; this->day=day; cout<<"Data構(gòu)造函數(shù)被調(diào)用！"<<endl; } voidDisplay(){ cout<<year<<"年"<<month<<"月"<<day<<"日"<<endl; } intyear,month,day;};classDataTime:publicData{public: DataTime(inta,intb,intc,intd,inte,intf):Data(a,b,c){ this->hour=d; this->minute=e; this->second=f; } voidDisplay(){ cout<<year<<"年"<<month<<"月"<<day<<"日"<<hour<<"時(shí)"<<minute<<"分"<<"秒"<<endl; }private: inthour,minute,second;};intmain(){ //DataA(2016,11,24); //A.Display(); DataTimea(2016,11,24,13,50,59); a.Display(); return0;}如圖所示：設(shè)計(jì)圖示中的4個(gè)類，其中：電腦類（Computrer）具有frequency，os，ram（CPU主頻，操作系統(tǒng)，內(nèi)存容量）等屬性，相機(jī)（Camera）具有pixel（像素?cái)?shù)，如500萬，800萬等），從電腦和相機(jī)共同派生出智能手機(jī)，智能手機(jī)（Smobilephone）具有size（屏幕尺寸，如4.5寸，5.5寸等）。家電（Appliance）擁有brand，price（品牌，價(jià)格）等屬性。構(gòu)造智能手機(jī)類的一個(gè)實(shí)例，并通過該實(shí)例調(diào)用其成員show()顯示其繼承自基類和自身的所有屬性信息。參考程序：#include<iostream>usingnamespacestd;classAppliance{public: Appliance(charc,floatd){ this->brand=c; this->price=d; } ~Appliance(){ } charGetbrand(){returnbrand;} floatGetprice(){returnprice;}private: charbrand; floatprice;};classComputer:virtualpublicAppliance{public: Computer(floata,charb,intc,chard,floate):Appliance(d,e){ this->frequency=a; this->os=b; this->ran=c; } ~Computer(){ } floatGetfrequency(){ returnfrequency; } charGetos(){ returnos; } intGetran(){ returnran; }private: floatfrequency; charos; intran; };classCamera:virtualAppliance{public: Camera(inta,chard,floate):Appliance(d,e){ this->pixel=a; } intGetpixel(){ returnpixel; }private: intpixel;};classSmobilephone:publicComputer,publicCamera{public: Smobilephone(floata,charb,intc,chard,floate):Appliance(d,e),Computer(a,b,c,d,e),Camera(c,d,e){ this->a=a; } voidshow(){ chara=Getbrand(); cout<<"品牌："<<a<<endl; floatb=Getprice(); cout<<"價(jià)格："<<b<<"元"<<endl; floatc=Getfrequency(); cout<<"頻率："<<c<<"KHz"<<endl; chard=Getos(); cout<<"操作系統(tǒng)："<<d<<endl; inte=Getran(); cout<<"內(nèi)存："<<e<<endl; intf=Getpixel(); cout<<"像素："<<f<<"萬"<<endl; } private: floata;};intmain(){ Smobilephonea(2.5,'a',5,'e',3.59); a.show(); return0;}運(yùn)算符重載多態(tài)模板已知一個(gè)名為Complex的復(fù)數(shù)類，這個(gè)類包含：（1）私有成員：實(shí)部、虛部，且均為int型（2）公有的帶默認(rèn)形參值的構(gòu)造函數(shù)（3）以類的成員函數(shù)方式重載+運(yùn)算符和*運(yùn)算符（4）以友元函數(shù)方式重載<<運(yùn)算符（5）使得以下主函數(shù)正確運(yùn)行并得到以下結(jié)果intmain(){Complexc1(1,2);Complexc2(3,4);