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Given:Which code, inserted at line 15, creates an instance of the Point class defined in Line?()A.Point p = new Point();B.Line.Point p = new Line.Point();C.The Point class cannot be instatiated at line 15.D.Line l = new Line() ; l.Point p = new l.Point();

题目
Given:Which code, inserted at line 15, creates an instance of the Point class defined in Line?()

A.Point p = new Point();

B.Line.Point p = new Line.Point();

C.The Point class cannot be instatiated at line 15.

D.Line l = new Line() ; l.Point p = new l.Point();

相似考题

1.classLine{11.publicstaticclassPoint{}12.}13.14.classTriangle{15.／／insertcodehere16.}Whichcode,insertedatline15,createsaninstanceofthePointclassdefinedinLine?()A.Pointp=newPoint（）；B.Line.Pointp=newLine.Point（）；C.ThePointclasscannotbeinstatiatedatline15.D.Line1=newLine（）；1.Pointp=new1.Point（）；

2.Given:When the doSomething method is called, after which line does the Object created in line 5 become available for garbage collection?()A.Line 5B.Line 6C.Line 7D.Line 8E.Line 9F.Line 10

3.Given:WhichlineofcodemarkstheearliestpointthatanobjectreferencedbyintObjbecomesacandidatefor garbagecollection?()A.Line16B.Line17C.Line18D.Line19

4.阅读下列C++程序和程序说明，将应填入(n)处的字句写在对应栏内。【说明】Point是平面坐标系上的点类，Line是从Point派生出来的直线类。include ＜iostream.h＞class Point{public:Point (int x, int y) ;Point (Point &p) ;～Point();void set (double x, double y) ;void print();private:double X,Y;};Point::Point (int x, int y) //Point 构造函数{X=x; Y=y; }Point::Point ( (1) ) //Point 拷贝构造函数{X=p.X; Y=p.Y；}void Point::set (double x, double y){X=x; Y=y; }void Point::print(){cout＜＜' ('＜＜X＜＜","＜＜Y＜＜") "＜＜endl; }Point::～Point(){cout＜＜"Point 的析构函数被调用! "＜＜endl;class Line: public Point{public:Line (int x, int y, int k) ;Line (Line &s) ;～Line();void set (double x, double y, double k)void print();private:double K;};(2)//Line 构造函数实现{ K=k;}(3)//Line 拷贝构造函数实现{K=s.K;}void Line::set (double x, double y, double k){ (4);K=k;}void Line::print(){cout＜＜" 直线经过点";(5);cout＜＜"斜率为: k="＜＜K＜＜endl;}Line: :～Line(){cout＜＜"Line 析构函数被调用! "＜＜endl;}void main(){Line 11 (1,1,2) ;11 .print();Linel2 (11) ;12.set (3,2,1) ;12.print();}

参考答案和解析
参考答案：B
更多“Given:Which code, inserted at line 15, creates an instance of the Point class defined in Line?() ”相关问题

  • 第1题：

    Given:WhichchangecanyoumaketoTargetwithoutaffectingClient?()

    A.Line4ofclassTargetcanbechangedtoreturni++；

    B.Line2ofclassTargetcanbechangedtoprivateinti=1；

    C.Line3ofclassTargetcanbechangedtoprivateintaddOne（）{

    D.Line2ofclassTargetcanbechangedtoprivateIntegeri=0；


    参考答案：D

  • 第2题：

    当对Draw Width进行设置后，将影响( )。

    A．Line、Circle、Pset方法

    B．Line、Shape控件

    C．Line、Circle、Point方法

    D．Line、Circle、Pset方法和Line、Shape控件


    正确答案：A

  • 第3题：

    Which of the following commands would successfully implement an access list on a routers virtual terminal line?()

    A. RouterTK(config-line)# access-class 10 in

    B. RouterTK(config-if)# ip access-class 23 out

    C. RouterTK(config-line)# access-list 150 in

    D. RouterTK(config-if)# ip access-list 128 out

    E. RouterTK(config-line)# access-group 15 out

    F. RouterTK(config-if)# ip access-group 110 in


    参考答案：A

  • 第4题：

    Given:Which code, inserted at line 16, correctly retrieves a local instance of a Point object?()

    A.Point p = Line.getPoint();

    B.Line.Point p = Line.getPoint();

    C.Point p = (new Line()).getPoint();

    D.Line.Point p = (new Line()).getPoint();


    参考答案：D

  • 第5题：

    Which command is required to apply an access list on a virtual terminal line of a router?()

    A. Router(config-line)# access-class 10 in

    B. Router(config-if)# ip access-class 23 out

    C. Router(config-line)# access-group 15 out

    D. Router(config-if)# ip access-group 110 in

    E. Router(config-line)# access-list 150 in

    F. Router(config-if)# ip access-list 128 out


    参考答案：A

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