【简答题】写出下面程序的运行结果。 public class Figure { public int xPosition,yPosition; public void draw(){ System.out.println("drawing Figure"); } } public class Rectangle extends Figure{ public void draw(){ System.out.p...
【单选题】运行Test类的输出是什么?public class Test { public static void main(String[] args) { new Circle9(); }}public abstract class GeometricObject { protected GeometricObject() { System.out.print("A"); } protected Geo...
【单选题】运行类Test的输出是什么? public class Test { public static void main(String[] args) { new Circle9(); } } public abstract class GeometricObject { protected GeometricObject() { System.out.print("A"); } protected ...
【多选题】public abstract class Geometry { public abstract double getArea(); } public class Circle extends Geometry { private double r; public Circle( double r){ this .r=r; } public double getArea(){ return ( 3...