patron
Class Empty

java.lang.Object
  patron.List
      patron.Empty

public class Empty
extends List

liste vide.

Author:

jroyer

Constructor Summary

Empty()
constructeur des listes vides.

Method Summary

List	append(List l) concatenation.
boolean	isEmpty() teste de la liste vide.
int	length() longueur.
NotEmpty	putLast(int e) ajout a la fin.
List	reverse() inversion.
java.lang.String	toString() redefinition de toString.

Methods inherited from class patron.List

cons

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Empty

public Empty()

constructeur des listes vides.

Method Detail

isEmpty

public final boolean isEmpty()

teste de la liste vide.

Specified by:

isEmpty in class List

Returns:

booleen

length

public final int length()

longueur.

Specified by:

length in class List

Returns:

entier

putLast

public final NotEmpty putLast(int e)

ajout a la fin.

Specified by:

putLast in class List

Parameters:

e - l'entier a ajouter

Returns:

une liste non vide

reverse

public final List reverse()

inversion.

Specified by:

reverse in class List

Returns:

une liste

append

public final List append(List l)

concatenation.

Specified by:

append in class List

Parameters:

l - liste a concatener

Returns:

une vouvelle liste

toString

public final java.lang.String toString()

redefinition de toString.

Specified by:

toString in class List

Returns:

une chaine