编java代码求椭圆和长方形的面积和周长.要求：写两个class：ellipse 和 rectang

编java代码求椭圆和长方形的面积和周长.要求：写两个class：ellipse 和 rectang

没明白isLargeThan是什么意思,能说得详细点儿么?先把满足前四个条件的程序发给你,你看看行不行.注：一个类一个java文件,运行Test3类执行.public class Point {\x05private double x;\x05private double y;\x05public Point() {\x05\x05x=0;\x05\x05y=0;\x05}\x05public Point(double x,double y){\x05\x05this.x=x;\x05\x05this.y=y;\x05}\x05public double getX(){\x05\x05return this.x;\x05}\x05public double getY(){\x05\x05return this.y;\x05}\x05public void setX(double x){\x05\x05this.x=x;\x05}\x05public void setY(double y){\x05\x05this.y=y;\x05}\x05public Point translate(double u,double v){\x05\x05this.x=this.x+u;\x05\x05this.y=this.y+v;\x05\x05return new Point (this.x,this.y);\x05}}public class Rectangle extends Point {private double height;private double wideth;\x05public Rectangle() {\x05\x05super();\x05}\x05public Rectangle(Point p,double h,double w){\x05\x05super(p.getX(),p.getY());\x05\x05this.height=h;\x05\x05this.wideth=w;\x05}public double getPerimeter(){\x05return 2*(height+wideth);}public double getArea(){\x05return height*wideth;}}public class Ellipse extends Point{\x05 private double height;\x05 private double wideth;\x05\x05public Ellipse() {\x05\x05\x05super();\x05\x05}\x05\x05public Ellipse(Point p,double h,double w){\x05\x05\x05super(p.getX(),p.getY());\x05\x05\x05this.height=h;\x05\x05\x05this.wideth=w;\x05\x05}\x05 public double getPerimeter(){\x05 \x05return 2*3.14*Math.sqrt((height*height+wideth*wideth)/2);\x05 }\x05 public double getArea(){\x05 \x05return 3.14*height*wideth;\x05 }}public class Test3 {\x05public static void main(String[] args) {\x05\x05Point p=new Point(1.2,4.6);\x05\x05Rectangle r=new Rectangle(p,9.2,8.7);

对的，就是这个意思