属性变量的覆盖问题

[facepp]

属性变量的覆盖问题

public class Point{
	
	
	
	public void draw(Point p)
	{System.out.println("Draw in Point");}
	
}


public class ColorPoint extends Point
{
	
public void draw (ColorPoint p)
{System.out.println("draw in ColorPoint");}


public static void main(String[] args )
{
	
Point p1=new Point();
Point p2=new ColorPoint();
ColorPoint p3=new ColorPoint();
p1.draw(p1);
p1.draw(p2);
p1.draw(p3);
p2.draw(p1);
p2.draw(p2);
p2.draw(p3);
p3.draw(p1);
p3.draw(p2);
p3.draw(p3);
}

}

Draw in Point
Draw in Point
Draw in Point
Draw in Point
Draw in Point
Draw in Point
Draw in Point
Draw in Point
draw in ColorPoint

红色的部分不知道为什么。
我知道变量的覆盖
属性的值取父类还是子类并不取决于我们创建对象的类型，而是取决于我们定义的变量的类型。