public void show(String nick){
		for(beansHistorial mostrarHistorial : historial){
			if(mostrarHistorial.getContacto().getNick().equals(nick)){
				System.out.println("|------------------------");
				System.out.println("|Ingresado por:      "+mostrarHistorial.getContacto().getNick());
				System.out.println("|------------------------");
				System.out.println("|Codigo              "+mostrarHistorial.getId());
				System.out.println("|Upline              "+mostrarHistorial.getUpline().getNick());
				System.out.println("|Downline            "+mostrarHistorial.getDownline().getNick());
				System.out.println("|fecha               "+mostrarHistorial.getDate());
				System.out.println("|------------------------");
			}
		}
	}