public int CompareTo(object obj)
{
Individual other = (Individual)obj;
// sort from higher to lower
return(other.getFitness().CompareTo(getFitness()));
}
public int compareTo(Object obj)
{
Individual other = (Individual)obj;
// sort from lower to higher
// return new Double(getFitness()).compareTo(new Double(other.getFitness()));
// sort from higher to lower
return(other.getFitness().CompareTo(this.getFitness()));
}