import java.util.Comparator;

public class ComparatorWeight implements Comparator <Czlowiek>{

	@Override
	public int compare(Czlowiek cz1, Czlowiek cz2) {
		if (cz1.getWeight()<cz2.getWeight()) return -1;
		else if (cz1.getWeight()>cz2.getWeight()) return 1;
		return 0;
	}

}