public StandardPieSectionLabelGenerator(String labelFormat){
  this(labelFormat,NumberFormat.getNumberInstance(),NumberFormat.getPercentInstance());
}

public StandardPieSectionLabelGenerator ( String labelFormat ) { this ( labelFormat , NumberFormat . getNumberInstance ( ) , NumberFormat . getPercentInstance ( ) ) ; }
creates a new section label generator using the specified label format string , and platform default number and percentage formatters .
