pastrani

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.TreeSet;

class Persona implements Comparable<Persona> {
    String name;

    Persona(String name) {
        this.name = name;
    }

    public int compareTo(Persona o) {

        Integer len = o.name.length();
        Integer len1 = name.length();
        return -len.compareTo(len1);

    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((name == null) ? 0 : name.hashCode());
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        Persona other = (Persona) obj;
        if (name == null) {
            if (other.name != null)
                return false;
        } else if (!name.equals(other.name))
            return false;
        return true;
    }

    @Override
    public String toString() {
        return name;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

}

public class chujemuje {

    public static void main(String[] args) {
        TreeSet<Persona> set = new TreeSet<Persona>();
        List<Persona> list = new ArrayList<Persona>();
        Collections.sort(list, new Comparator<Persona>() {

            @Override
            public int compare(Persona o1, Persona o2) {
                if (o2.name.length() > o1.name.length()) {
                    return 1;
                } else if (o2.name.length() < o1.name.length()) {
                    return -1;
                } else {
                    return 0;
                }
            }

        });

        addValues(list);
        showValues(list);
        System.out.println();
        addValues(set);
        showValues(set);

    }

    public static void showValues(Collection<Persona> col) {
        for (Persona obj : col) {
            System.out.println(obj.toString());
        }
    }

    public static void addValues(Collection<Persona> col) {
        col.add(new Persona("ssdasdasda122"));
        col.add(new Persona("Szmaiaadsasd"));
        col.add(new Persona("cyz2"));
        col.add(new Persona("siki2"));
        col.add(new Persona("hui1223123"));
    }
}