/** class Num, our internal representation of a number
 * in the L0 language.
 * See http://www.radford.edu/itec380/2008fall/Hw06/hw06.html
 * 
 * @author Ian Barland
 * @version 2008.Nov.30
 */
public class Num extends Value {
  private double x;
  Num( double _x ) { this.x = _x; }
  
  public String toString() { return Double.toString(x); }
 
  /** Return the Java double this Value represents
   *  (for use by other primitives in our language.)
   * @return the Java double this Value represents.
   */
  double doubleValue() { return this.x; }

  }