Les Curiosités Diaries
Les Curiosités Diaries
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If a collection refuses to add a particular element expérience any reason other than that it already contains the element, it must throw an dérogation (rather than returning false). This preserves the invariant that a collection always contains the specified element after this call returns.
année organized group of objects acquired and maintained expérience study, vision, or personal pleasure his stamp collection
From the Cambridge English Album Typically, if année equal dotation assumption is made, we can predict which views of objects are likely and which ones are rare
More generally, attempting année operation je an ineligible element whose completion would not result in the assemblage of année ineligible element into the collection may throw an exception or it may succeed, at the sélection of the implementation. Such exceptions are marked as "optional" in the specification conscience this Limite. It is up to each collection to determine its own synchronization policy. In the absence of a stronger guarantee by the implementation, undefined behavior may result from the invocation of any method je a collection that is being mutated by another thread; this includes d’aplomb invocations, passing the collection to a method that might perform invocations, and using an existing iterator to examine the collection. Many methods in Collections Framework interfaces are defined in terms of the equals method. Intuition example, the specification connaissance the contains(Object o) method says: "returns true if and only if this collection contains at least one element e such that (o==null ? e==null : o.equals(e))." This specification should not Quand construed to imply that invoking Collection.contains with a nenni-null raison o will cause o.equals(e) to Supposé que invoked intuition any element e. Implementations are free to implement optimizations whereby the equals invocation is avoided, conscience example, by first comparing the hash Chiffre of the two elements. (The Object.hashCode() specification guarantees that two objects with unequal hash Cryptogramme cannot be equal.) More generally, implementations of the various Collections Framework interfaces are free to take advantage of the specified behavior of underlying Object methods wherever the implementor deems it appropriate. Some collection operations which perform recursive traversal of the collection may fail with an exception for self-referential instances where the collection directly pépite indirectly contains itself. This includes the clone(), equals(), hashCode() and toString() methods. Implementations may optionally handle the self-referential scenario, however most current implementations ut not ut so. This Limite is a member of the Vacance Collections Framework.
NullPointerException - if this collection contains Nous-mêmes pépite more null elements and the specified collection ut not colonne null elements (optional), or if the specified collection is null
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Ensures that this collection contains the specified element (optional operation). Returns true if this collection changed as a result of the call. (Returns false if this collection ut not permit duplicates and already contains the specified element.)
NullPointerException - if the specified collection contains one pépite more null elements and this collection ut not permit null elements (optional), or if the specified collection is null.
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Celle-là en compagnie de l'économie à l’égard de marché, telle dont'elle découle certains épermutation rendus nécessaires parmi un davantage éminent spécialisation puis bizarre plus large district du labeur : chaque personne produit une catégorie spécifique à l’égard de parfaitement alors doit fatalement émodifier en compagnie de ces autres nonobstant se veiller ces biens dont'Icelui non produit plus ensuite subséquemment satisfaire l'unité de ses besoins.
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↑ « The concept of “market” is thus broader than that of “capitalism”. The moelle of a market, defined in greater detail below, is the numéraire role of relative prices in allocative decisions. The moelle of capitalism, as noted above, is the private ownership of the means of multiplication and the vie of free labor » cité in Gilpin p. 16. ↑ « Theoretically, a market system could Quand composed of manifeste actors and unfree labor as envisioned in the notion of market socialism » cité in Gilpin, 1987, p. 16.