protected AbstractXYItemLabelGenerator(String formatString,DateFormat xFormat,NumberFormat yFormat){
  this(formatString,NumberFormat.getInstance(),yFormat);
  this.xDateFormat=xFormat;
}

protected AbstractXYItemLabelGenerator ( String formatString , DateFormat xFormat , NumberFormat yFormat ) { this ( formatString , NumberFormat . getInstance ( ) , yFormat ) ; this . xDateFormat = xFormat ; }
creates an item label generator using the specified number formatters .
