class Point
{   final static Point origin=new Point(0,0);    //類變量、常量、坐標原點
    int x,y;
    Point (int x,int y)
    {   this.x=x;
        this.y=y;
    }
}
public class UsingStatic
{   public static void main(String args[])
    {   Point p1=new Point(10,20);    //構造Point類的對象p1
        System.out.println("類Point中的類變量：");
        System.out.println("("+Point.origin.x+","+Point.origin.y+")");    //訪問類變量
        System.out.println("類Point中的類實例變量：");
        System.out.println("("+p1.x+","+p1.y+")");            //訪問類對象變量x,y
    }
}