jls07_toplevel2.java

package points;
class Point {
	int x, y;			// coordinates
	PointColor color;		// color of this point
	Point next;			// next point with this color
	static int nPoints;
}
class PointColor {
	Point first;			// first point with this color
	PointColor(int color) {
		this.color = color;
	}
	private int color;		// color components
}