Nope. All the standard Individual subclasses have everything already implemented. You'd only have to override genotypeToString if you're making your own special kind of Individual. Sean On Nov 11, 2012, at 3:09 PM, SUBSCRIBE ECJ-INTEREST-L Anonymous wrote: > Sean, thanks. That worked. > > Please correct me, the printIndividual( ) is a method in Individual class. So I > need to create a class that extends the Individual class so that I could use > printIndividual( )? In the owner's manual it stated that genotypeToString( ) > should be overridden instead. > > public class Encoder{ > public static void main(String[] args){ > System.out.println(ParsingIndividual.genotypeToString()); > } > } > > class ParsingIndividual extends Individual{ > @Override > public String genotypeToString(float f){ > return Code.encode(f); > } > } > > Rui