public String toString(){
  return "NODE " + getFeature() + " "+ comparisonType+ " "+ getValueString()+ " "+ Integer.toString(qtrue)+ " "+ Integer.toString(qfalse);
}

public String toString ( ) { return "NODE " + getFeature ( ) + " " + comparisonType + " " + getValueString ( ) + " " + Integer . toString ( qtrue ) + " " + Integer . toString ( qfalse ) ; }
get a string representation of this node .
