@Override public String toString(){
  String str="";
  for (  Effect e : effects.keySet()) {
    str+=e.toString();
    str+=" [" + effects.get(e) + "]";
    str+=",";
  }
  if (!effects.isEmpty()) {
    str=str.substring(0,str.length() - 1);
  }
  return str;
}

@ Override public String toString ( ) { String str = "" ; for ( Effect e : effects . keySet ( ) ) { str += e . toString ( ) ; str += " [" + effects . get ( e ) + "]" ; str += "," ; } if ( ! effects . isEmpty ( ) ) { str = str . substring ( 0 , str . length ( ) - 1 ) ; } return str ; }
returns a string representation of the rule case .
