class Grandfather
{
	String color= "Grandfather颜色";
}

class Father extends Grandfather
{
	//String color= "Father颜色";
}

class Son extends Father
{
	String color= "Son颜色";
	String getSuperColor()
	{
		return super.color;
	}

	public static void main(String[] args)
	{
		//创建一个Apple对象
		Son s = new Son();
		//调用getSuper()方法获取Apple对象关联的super引用
		Grandfather g = s;
		Father f=s;

		//判断a和f的关系
		System.out.println("s.color：" +s.color);
		System.out.println("f.color：" +f.color);
		System.out.println("g.color：" +g.color);
		System.out.println("s.getSuperColor()：" + s.getSuperColor());
		//System.out.println("f.getSuperColor()：" + f.getSuperColor());

	}
}

/*
s.color：Son颜色
f.color：Grandfather颜色
g.color：Grandfather颜色
s.getSuperColor()：Grandfather颜色
请按任意键继续. . .
*/