类 Contain 的定义如下: class Contain { private: int x; protected: int z; public: class Embed { private: int y; public: Embed ( ) { y=100; } int Embed_Fun(); }MyEmbed; int Contain_Fun(); }; 下列对上面定义的描述中,正确的是( )。A.定义类Embed对象的语句是:Contain::Embed Myobject;B.类Contain的成员函数Contain_Fun()中可以访问对象MyEmbed的私有成员yC.类Embed的成员函数Embed_Fun()中可以直接访问类Contain的所有成员D.类Embed的成员函数Embed_Fun()中只能直接访问类Contain的公有成员
类 Contain 的定义如下: class Contain { private: int x; protected: int z; public: class Embed { private: int y; public: Embed ( ) { y=100; } int Embed_Fun(); }MyEmbed; int Contain_Fun(); }; 下列对上面定义的描述中,正确的是( )。
A.定义类Embed对象的语句是:Contain::Embed Myobject;
B.类Contain的成员函数Contain_Fun()中可以访问对象MyEmbed的私有成员y
C.类Embed的成员函数Embed_Fun()中可以直接访问类Contain的所有成员
D.类Embed的成员函数Embed_Fun()中只能直接访问类Contain的公有成员
相关考题:
包容类Contain和内嵌类Embed定义如下:include class Contain{private:int x;protec 包容类Contain和内嵌类Embed定义如下: #include <iostream.h> class Contain { private: int x; protected: int z; public: class Embed { private: int y; public: Embed(){y=100;} int Embed_Fun(); }MyEmbed; int Contain_Fun(); }; 对上面的定义,正确的描述是( )。A.定义类Embed对象的语句是:Contain::Embed embed;B.类Contain的成员函数Contain_Fun()中可以用MyEmbed.y的方式访问类Embed的私有成员yC.类Embed的成员函数Embed_Fun()中可以直接访问类Contain和的私有成员xD.类Embed的成员函数Embed_Fun()中可以直接访问类Contain的保护成员z
包容类Contain和内嵌类Embed定义如下:includeclass Contain{private:int X;protect 包容类Contain和内嵌类Embed定义如下: #include<iostream.h> class Contain { private: int X; protected: int z; public: class Embed { private: int y; public: Embed(){y=100;} int Embed_Fun(); }MyEmbed; int Contain_Fun(A.定义类Embed对象的语句是:Contain? Embed embed;B.类Contain的成员函数Contain_Fun()中可以用MyEmbe D.y的方式访问类Embed的私有成员yC.类Embed的成员函数Embed_Fun()中可以直接访问Contain的私有成员xD.类Embed的成员函数Embed_Fun()中可以直接访问Contain的保护成员Z
下列选项中,列出用于定义类成员的访问控制权的一组保留字是 ( )A.class,float,double,publicB.float,boolean,int,longC.char,extends,float,doubleD.public,private,protected
下列选项中,列出用于定义类成员的访问控制权的一组保留字是______。A.float,boolean,int,longB.class,float,double,publicC.char,extends,float,doubleD.public,private,protected
下列选项中,列出用于定义类成员的访问控制权的一组保留字是()。A.class.float.double.publicB.fioat.Boolean.int,longC.char.extends.float.doubleD.public.private.protected
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();? ?}}
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;}
下列程序段执行结果是___________。 x = 1 print(type(x)) x = 1.0 print(type(x)) x = '1.0' print(type(x)A.<class 'int'> <class 'float'> <class 'str'>B.<class 'float'> <class 'int'> <class 'str'>C.<class 'str'> <class 'float'> <class 'int'>D.<class 'str'> <class 'int'> <class 'float'>
用于定义类成员的访问控制权的一组关键字是()A.class, float, double, publicB.float, boolean, int, longC.char, extends, float, doubleD.public, private, protected