question: returns the upper bound of the x-interval . concode_field_sep double yHigh concode_elem_sep double yLow concode_elem_sep double xHigh concode_elem_sep double y concode_elem_sep double xLow concode_field_sep double getY concode_elem_sep double getXLow concode_elem_sep double getYLow concode_elem_sep boolean equals concode_elem_sep double getYHigh
target: double function ( ) { return this . xHigh ; }