设有定义:Class person{ int num; char name[10]; public: void init(int n,char*m);…};person std[30]则以下叙述不正确的是A.std是一个含有30个元素的对象数组B.std数组中的每个元素都是person类的对象C.std数组中的每个元素都有自己的私有变量num和nameD.std数组中的每个元素都有各自的成员函数init
设有定义:Class person{ int num; char name[10]; public: void init(int n,char*m);…};person std[30]则以下叙述不正确的是
A.std是一个含有30个元素的对象数组
B.std数组中的每个元素都是person类的对象
C.std数组中的每个元素都有自己的私有变量num和name
D.std数组中的每个元素都有各自的成员函数init
相关考题:
设有以下函数void fun(int n,char * s) { …… }则下面对函数指针的定义和赋值均是正确的是A)void (*pf)(); pf=fun;B)viod *pf(); pf=fun;C)void *pf(); *pf=fun;D)void (*pf)(int,char);pf=fun;
有以下程序:includeincludeusingnameSpacestd;classperson{ intage; Char*nam 有以下程序:include <iostream>include <string>using nameSpace std;class person{int age;Char * name;public:person ( int i, Char * str ){int j;j = strlen( str ) + 1;name = new char[ j ];strcpy( name, str );age = i;}~person(){delete name;cout<<"D";}void display(){cout<<name<<":"<<age;}};int main(){person demo( 30,"Smith" );demo.display();return 0;}则该程序的输出结果为:【 】。
用于定义类成员的访问控制权限的一组关键字是A.extends 和 implementsB.public,private 和 protectedC.class和publicD.char,int,float和double
设有以下函数: void fun(int n,char*s){…} 则下面对函数指针的定义和赋值均正确的是( )。A.void(*pf)( );pf=fun;B.void*pf( );pf=funC.void*pf( );*pf=fun;D.void(*pf)(int,char);pf=fun;
设有以下函数:void fun(int n,char*$s){……}则下面对函数指针的定义和赋值均正确的是A.void(*pf)( );pf=fun;B.void*Pf( );pf=fun;C.void*pf( ); *pf=fun;D.void(*pf)(int,char);nf=fun;
设有以下函数:voidfun(intn,char}s){……}则下面对函数指针的定义和赋值均正确的是( )。A.void(*pf)(int,char);pf=fun;B.void+pf( );pf=fun;C.void*pf( );*pf=fun;D.void(*pf)(int,char*);pf=fun;
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;}
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