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(); - itgle

题目

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();

相似考题

1.若不同范围的变量使用了同名,则按以下哪个顺序查引用的变量()A、Local->Global->SharedInstanceB、Global->LocalSharedInstanceC、Shared->Global->Instance->LocalD、Local->Shared->Global->Instance

2.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();}

3.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();

4.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（）；

更多“Given:Which code, inserted at line 16, correctly retrieves a local instance of a Point object?() ”相关问题

第1题：

Click the Exhibit button.Given:What is the result?()

A.Line 26 prints "a" to System.out.
B.Line 26 prints "b" to System.out.
C.An exception is thrown at line 26 at runtime.
D.Compilation of class A will fail due to an error in line 6.

参考答案：A
第2题：

Given:WhichlineofcodemarkstheearliestpointthatanobjectreferencedbyintObjbecomesacandidatefor garbagecollection?()

A.Line16
B.Line17
C.Line18
D.Line19

参考答案：D
第3题：

Given:WhichchangecanyoumaketoTargetwithoutaffectingClient?()

A.Line4ofclassTargetcanbechangedtoreturni++；
B.Line2ofclassTargetcanbechangedtoprivateinti=1；
C.Line3ofclassTargetcanbechangedtoprivateintaddOne（）{
D.Line2ofclassTargetcanbechangedtoprivateIntegeri=0；

参考答案：D
第4题：

Given:When the doSomething method is called, after which line does the Object created in line 5 become available for garbage collection?()

A.Line 5
B.Line 6
C.Line 7
D.Line 8
E.Line 9
F.Line 10

参考答案：D
第5题：

Given：11.publicvoidgenNumbers（）{12.ArrayListnumbers=newArrayList（）；13.for（inti=0；i<10；i++）{14.intvalue=i*（（int）Math.random（））；15.IntegerintObj=newInteger（value）；16.numbers.add（intObj）；17.}18.System.out.println（numbers）；19.}WhichlineofcodemarkstheearliestpointthatanobjectreferencedbyintObjbecomesacandidateforgarbagecollection？（）
A.Line19
B.TheobjectisNOTacandidateforgarbagecollection.
C.Line17
D.Line16
E.Line18

参考答案：A

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