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下面这个程序的结果是includeclass A{private:int a;public:void seta();int geta(
下面这个程序的结果是 #include<iostream.h> class A { private: int a; public: void seta();int geta();}; void A∷seta() {a=1;} int A∷geta() {return a;} class B { pnvate: int a; publiC: void sera();int geta();}; void B∷seta() {a = 2;} int B∷geta() {return a;} class C:public A,public B { private: int b; public: void display();}; void C∷display() { int b=geta(); cout<<b;} void main() { C c; c.seta(); c.display();}
A.1
B.2
C.随机输出1或2
D.程序有错
参考答案
更多 “ 下面这个程序的结果是includeclass A{private:int a;public:void seta();int geta( 下面这个程序的结果是 #include<iostream.h> class A { private: int a; public: void seta();int geta();}; void A∷seta() {a=1;} int A∷geta() {return a;} class B { pnvate: int a; publiC: void sera();int geta();}; void B∷seta() {a = 2;} int B∷geta() {return a;} class C:public A,public B { private: int b; public: void display();}; void C∷display() { int b=geta(); cout<<b;} void main() { C c; c.seta(); c.display();}A.1B.2C.随机输出1或2D.程序有错 ” 相关考题
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下列程序的运行结果是()。includevoid fun (int *a,int*b){int*kk=a;a=b;b=k}void
下列程序的运行结果是( )。 #include< iostream.h> void fun (int *a,int*b) {int*k k=a;a=b;b=k} void main() {int a=2004, b=9,*x=a,*y=b; fun(x, y) ; cout<<a<<" "<<b<<endl:}A.20049B.92004C.0D.编译时出错
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下面程序运行时输出结果为______。 include include class Rect { public: Rect(int
下面程序运行时输出结果为______。include<iostream.h>includeclass Rect{public:Rect(int l, int w){length=l; width=w;)void Print(){cout<<"Area:"<<length*width<<end1;}void operator delete(void*p){free(p);}private:int length, width;};void main(){Rect *p;p=new Rect(5, 4);p->Print();delete p;}
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下列程序的运行结果是【 】。 include class SomeClass { public: SomeClass(int va
下列程序的运行结果是【 】。include <iostream. h>class SomeClass{public:SomeClass(int value) { some_value=value;};void show_data(void) { cout<<data<<"<<~some_value<<endl; };static void set_data(int value) {data=value; }private:static int data;int some_value};int SomeClass::datavoid main(void){SomeClass my_class(1001),your_class(2002);your_class. set_data(4004);my_elass. show_data()}
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下面程序运行时输出结果为【】。 include include class Rect { public: Rec
下面程序运行时输出结果为【 】。include<iostream.h>include<malloc.h>class Rect{public:Rect(int1,int w)(length=1;width=w;)void Print(){cout<<"Area:"<<length *width<<endl;)void *operator new(size-t size){return malloc(size);}void operator delete(void *p){free(p)private:int length,width;};void main(){Rect*p;p=new Rect(5,4);p->Print();delete p;}
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下面这个程序的结果是 include class A { private: int a; public: void seta( ) ;
下面这个程序的结果是#include<iostream.h>class A{private:int a;public:void seta( ) ;int geta( ) ;};void A: :seta( ){ a=1;}int A: :geta( ){ retum a;}class B{ private:int a;public:void seta( ) ;int geta( ) ;};void B: :seta( ){a=2;}int B: :geta( ){return a;}class C: public A,public B{ private:int b;public:void display( ) ;};void C: :display( ){ int b=geta( ) ;cout < < b;}void main( ){ C c;c. seta( ) ;c. display( ) ;}A.1B.2C.随机输出1或2D.程序有错
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下列程序的运行结果是 includeclass Location{private:int X.Y;public:void init(i
下列程序的运行结果是 #include<iostream.h> class Location{ private: int X.Y; public: void init(int=0,int=0); void valueX(int val){X=val;} int valueX( ){ return X;} void valueYA.5 0 6 4B.0 0 6 4C.5 0 6 2D.0 0 6 2
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下面这个程序的结果是includeclass A{private:int a;public:void seta( );int geta
下面这个程序的结果是 #include<iostream.h> class A { private: int a; public: void seta( );int geta( );}; void A::seta( ) { a = 1;} int A::geta( ) {return a;} classA.1B.2C.随机输出1或2D.程序有错
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阅读以下说明和Java程序,填写程序中的空(1)~(6),将解答写入答题纸的对应栏内。
【说明】
以下Java代码实现一个简单绘图工具,绘制不同形状以及不同颜色的图形。部分接口、类及其关系如图5-1所示。
【Java代码】
interface?DrawCircle?{? //绘制圆形 public(1) ;}class?RedCircle?implements?DrawCircle?{? ?//绘制红色圆形???????public?void?drawCircle(int?radius,intx,?int?y)??{????????????System.out.println("Drawing?Circle[red,radius:"?+?radius?+",x:"?+?x?+?",y:"?+y+?"]");???????}}class?GreenCircle?implements?DrawCircle?{????//绘制绿色圆形??????public?void?drawCircle(int?radius,?int?x,int?y)?{???????????System.out.println("Drawing?Circle[green,radius:"?+radius+",x:?"?+x+?",y:?"?+y+?"]");??????}}abstract?class?Shape?{????//形状? protected? ? (2)???;? ? public?Shape(DrawCircle?drawCircle)?{? ?this.drawCircle=?drawCircle;? ? ? public?abstract?void?draw();}class?Circle?extends?Shape?{? //圆形? ?private?int?x,y,radius;? public?Circle(int?x,int?y,intradius,DrawCircle?drawCircle)?{? ?(3)???;? this.x?=?x;? ? ? this.y?=?y;? ?this.radius?=radius;? }? ? ?public?void?draw()?{? ? drawCircle.? ?(4)? ?;? ? ? }}public?class?DrawCircleMain?{? public?static?void?main(String[]?args)?{? Shape?redCircle=new?Circle(?100,100,10,? (5) );//绘制红色圆形? Shape?greenCircle=new?Circle(200,200,10,(6) );//绘制绿色圆形? ?redCircle.draw(); greenCircle.draw();? ?}}
考题
阅读下列说明和C++代码,填写程序中的空(1)~(6),将解答写入答题纸的对应栏内。
【说明】
以下C++代码实现一个简单绘图工具,绘制不同形状以及不同颜色的图形。部分类及其关系如图6-1所示。
【C++代码】
#include?#include?using?namespace?std;class?DrawCircle?{??????//绘制圆形,抽象类? ? ? public: (1);//定义参数为?int?radius,?int?x,?inty? ?virtual~DrawCircle()?{?}};class?RedCircle:public?DrawCircle?{????//绘制红色圆形? ? ? ? public: void?drawCircle(intradius,?int?x,?int?y)?{cout??drawCircle?=?drawCircle;? }? ?virtual~shape()?{?}? public:? ?virtual?void?draw()?=?0;};class?Circle:public?Shape?{????//圆形? ? private:? ? ?int?x,y,radius;? ? public:? Circle(int?x,inty,int?radius,DrawCircle?*drawCircle)? (3)? {? this->x?=?x;? ?this->y?=?y;? ? this->radius?=?radius; }? ? ? public:? void?draw(){? drawCircle?-> (4); }};int?main(){Shape?*redCirclenew?Circle(100,100,10,????(5)????);//绘制红色圆形? Shape?*greenCircle=new?Circle(100,100,10, (6)??);//绘制绿色圆形redCircle >draw();? ?greenCircle?->draw();? ?return?0;}
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