if ((etchType != RAISED) && (etchType != LOWERED)) throw new IllegalArgumentException();  this.etchType = etchType;
this(LOWERED);
  public EtchedBorder(int etchType)  {    if ((etchType != RAISED) && (etchType != LOWERED))      throw new IllegalArgumentException();    this.etchType = etchType;    /* The highlight and shadow fields already have a null value     * when the constructor gets called, so there is no need to     * assign a value here.     */  }