package comparable; import java.util.*; public class main { public static void main(String[] args) { Personne bart = new Etudiant("Bart", 15, "2nde"); Personne tom = new Etudiant("Tom", 13, "4eme"); Personne max = new Etudiant("Max", 18, "Terminale"); Personne thibault = new Enseignant("Tibault", 41, "Mathematiques"); List w = new ArrayList(); w.add(bart); w.add(tom); w.add(max); w.add(thibault); for (Personne p : w){ System.out.println(p.toString()); } Collections.sort(w); System.out.println("==================="); for (Personne p : w){ System.out.println(p.toString()); } System.out.println("Hello World !"); } }