public static Individuum nullIndividuum(int dim){
  short[] gene=new short[dim];
  Arrays.fill(gene,DONT_CARE);
  return new Individuum(0.0,gene);
}

public static Individuum nullIndividuum ( int dim ) { short [ ] gene = new short [ dim ] ; Arrays . fill ( gene , DONT_CARE ) ; return new Individuum ( 0.0 , gene ) ; }
create a " null " individuum ( full space ) .
