/**
  * Copyright (c): Uwe Schmidt, FH Wedel
  *
  * You may study, modify and distribute this source code
  * FOR NON-COMMERCIAL PURPOSES ONLY.
  * This copyright message has to remain unchanged.
  *
  * Note that this document is provided 'as is',
  * WITHOUT WARRANTY of any kind either expressed or implied.
  */

/**
 * eine Klasse fuer Konstanten
 *
 */

//--------------------

public
class Const extends Expr {

  protected
  Object value;

  //--------------------

  public
  Const(Object value) {
    this.value = value;
  }

  //--------------------

  // ein spezieller Konstruktor
  // fuer die einfachere Behandlung von int Werten

  public
  Const(int value) {
    this(new Integer(value));
  }

  //--------------------

  // ein spezieller Konstruktor
  // fuer die einfachere Behandlung von double Werten

  public
  Const(double value) {
    this(new Double(value));
  }

  //--------------------

  public
  Object eval() {
    return
      value;
  }
  //--------------------

  public
  String toString() {
    return
      value.toString();
  }
}

//--------------------