/* An instance of this utility class represents a location within a 
** two-dimensional grid, such as a matrix.  Its instances are immutable.
**
** Author: R. McCloskey
** Date: April 2022
*/
public class GridLocation {

   public final int ROW;
   public final int COL;

   public GridLocation(int r, int c) {
      ROW = r;  COL = c;
   }

   public String toString() {
      return "(" + ROW + ',' + COL + ')';
   }
}