Java 如何将平面内的点坐标转化为二维数组

Question

如题：
//for循环拿到平面所有点的坐标
double x;
double y;
List pointList=new ArrayList();
for(x=0.0;x<10.0;x++){
for(y=0.0;y<10.0;y++){
Point2D.Double point=new Point2D.Double(x, y);
pointList.add(point);
}
}
我用for循环拿到了100个点坐标，我要将其转化为二维数组，请问应该怎么写？

Answer 1

 double [][] porints = new double[pointList.size()][2];
        for(int i = 0;i<pointList.size();i++){
            porints[i][0] = ((Point2D.Double)pointList.get(i)).x;
            porints[i][1] = ((Point2D.Double)pointList.get(i)).y;
        }