public class BottinRecord { public String nom, prenom, num_tel; BottinRecord(String n, String p, String num) { nom=n;prenom=p;num_tel=num; } public void imprimer() { System.out.println(nom + "\t\t" + prenom + "\t\t" + num_tel); } public boolean equals(Object obj) { if (obj instanceof BottinRecord) { BottinRecord o = (BottinRecord) obj; if (nom.equals(o.nom) && prenom.equals(o.prenom) && num_tel.equals(o.num_tel)) return true; else return false; } return false; } public int hashCode() { return (nom.hashCode()+prenom.hashCode()+num_tel.hashCode())/3; } }