POO

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+#LyX 2.3 created this file. For more info see http://www.lyx.org/
+\lyxformat 544
+\begin_document
+\begin_header
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+\use_package mathtools 1
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+\use_package stackrel 1
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+\index Index
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+\color #008000
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+\tocdepth 3
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+\html_be_strict false
+\end_header
+
+\begin_body
+
+\begin_layout Standard
+En Java, la sintaxis 
+\family typewriter
+new 
+\emph on
+Clase
+\family default
+\emph default
+[
+\family typewriter
+\emph on
+<T1
+\emph default
+, 
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+...
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+>
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+\emph on
+Arg1
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+, 
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+...
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+) {
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+ ...
+ 
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+}
+\family default
+ se puede usar para crear una clase anónima que herede de 
+\family typewriter
+\emph on
+Clase
+\family default
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+.
+ Una 
+\series bold
+interfaz funcional
+\series default
+ es una que se declara con la anotación (opcional) 
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+@FunctionalInterface
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+ encima de la definición y que contienen un sólo método abstracto.
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+\begin_inset ERT
+status open
+
+\begin_layout Plain Layout
+
+
+\backslash
+begin{sloppypar}
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+
+\end_inset
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+Las 
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+expresiones lambda
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+ tienen sintaxis (
+\family typewriter
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+\family default
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+\family typewriter
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+{ 
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+|
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+\emph on
+expresión
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+), donde 
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+\emph on
+cuerpo
+\family default
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+ es el cuerpo de una función, 
+\family typewriter
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+expresión
+\family default
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+ es una única expresión que equivale a 
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+{ return 
+\emph on
+expresión
+\emph default
+; }
+\family default
+ y el 
+\family typewriter
+\emph on
+Tipo
+\family default
+\emph default
+ de los argumentos normalmente se puede inferir.
+ Internamente son clases compatibles con las interfaces funcionales que
+ se requieran siempre que su signatura sea compatible con la de su único
+ método abstracto.
+ Si la expresión lambda se refiere a variables de su entorno léxico (variables
+ locales o elementos de la clase), las instancias de su clase asociada se
+ denominan 
+\series bold
+clausuras
+\series default
+ (
+\emph on
+closures
+\emph default
+).
+\begin_inset ERT
+status open
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+\begin_layout Plain Layout
+
+
+\backslash
+end{sloppypar}
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+Salvo que se indique lo contrario, las siguientes interfaces se definen
+ en 
+\family typewriter
+java.util.function
+\family default
+.
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+
+\begin_layout Description
+
+\family typewriter
+@FunctionalInterface
+\begin_inset space ~
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+public
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+get()
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+interface
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+
+\family typewriter
+void
+\begin_inset space ~
+\end_inset
+
+accept(T)
+\end_layout
+
+\end_deeper
+\begin_layout Standard
+El paquete 
+\family typewriter
+java.util.stream
+\family default
+ contiene clases para soportar operaciones funcionales en flujos de elementos.
+ Las operaciones con flujos se dividen en operaciones 
+\series bold
+intermedias
+\series default
+ y 
+\series bold
+terminales
+\series default
+.
+ Las operaciones intermedias devuelven un nuevo flujo.
+ Las operaciones terminales pueden atravesar el flujo para producir un resultado
+ o un efecto colateral.
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+\begin_layout Plain Layout
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+extends BaseStream<T,Stream<T>>
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+Secuencia de elementos que soporta o
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+\begin_layout Plain Layout
+
+
+\backslash
+-
+\end_layout
+
+\end_inset
+
+pe
+\begin_inset ERT
+status open
+
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+
+
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+-
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+
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+ra
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+status open
+
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+
+
+\backslash
+-
+\end_layout
+
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+
+cio
+\begin_inset ERT
+status open
+
+\begin_layout Plain Layout
+
+
+\backslash
+-
+\end_layout
+
+\end_inset
+
+nes secuenciales y paralelas en agregado.
+\begin_inset Note Comment
+status open
+
+\begin_layout Plain Layout
+
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+<R,A> R collect(Collector<? super T,A,R>)
+\end_layout
+
+\begin_layout Plain Layout
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+<R> R collect(Supplier<R>, BiConsumer<R, ? super T>, BiConsumer<R,R>)
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+
+\begin_layout Plain Layout
+
+\family typewriter
+Stream<T> distinct()
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+
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+Optional<T> findAny()
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+
+\begin_layout Plain Layout
+
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+Optional<T> findFirst()
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+
+\begin_layout Plain Layout
+
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+<R> Stream<R> flatMap(Function<? super T,? extends Stream<? extends R>>)
+\end_layout
+
+\begin_layout Plain Layout
+
+\family typewriter
+DoubleStream flatMapToDouble(Function<? super T,? extends DoubleStream>)
+\end_layout
+
+\begin_layout Plain Layout
+
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+IntStream flatMapToInt(Function<? super T,? extends IntStream>)
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+
+\begin_layout Plain Layout
+
+\family typewriter
+LongStream flatMapToLong(Function<? super T,? extends LongStream>)
+\end_layout
+
+\begin_layout Plain Layout
+
+\family typewriter
+void forEachOrdered(Consumer<? super T>)
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+
+\begin_layout Plain Layout
+
+\family typewriter
+Stream<T> limit(long)
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+
+\begin_layout Plain Layout
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+\family typewriter
+IntStream mapToInt(ToIntFunction<? super T>)
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+
+\family typewriter
+LongStream mapToLong(ToLongFunction<? super T>)
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+
+\begin_layout Plain Layout
+
+\family typewriter
+Optional<T> max(Comparator<? super T>)
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+
+\begin_layout Plain Layout
+
+\family typewriter
+Optional<T> min(Comparator<? super T>)
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+
+\begin_layout Plain Layout
+
+\family typewriter
+boolean noneMatch(Predicate<? super T>)
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+
+\begin_layout Plain Layout
+
+\family typewriter
+Stream<T> peek(Consumer<? super T>)
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+
+\begin_layout Plain Layout
+
+\family typewriter
+Optional<T> reduce(BinaryOperator<T>)
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+
+\begin_layout Plain Layout
+
+\family typewriter
+T reduce(T, BinaryOperator<T>)
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+
+\begin_layout Plain Layout
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+<U> U reduce(U, BiFunction<U,? super T,U>, BinaryOperator<U>)
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+
+\begin_layout Plain Layout
+
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+Stream<T> skip(long)
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+
+\begin_layout Plain Layout
+
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+Object[] toArray()
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+
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+<A> A[] toArray(IntFunction<A[]>)
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+
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+filter(Predicate<?
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+super
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+\family default
+ Devuelve un flujo con los elementos de este para los que se cumple el predicado.
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+
+\family typewriter
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+<R>
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+\begin_inset space ~
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+Stream<R>
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+map(Function<?
+\begin_inset space ~
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+
+super
+\begin_inset space ~
+\end_inset
+
+T,?
+\begin_inset space ~
+\end_inset
+
+extends
+\begin_inset space ~
+\end_inset
+
+R>)
+\family default
+ Devuelve un flujo con el resultado de aplicar la función dada a los elementos
+ de este.
+\end_layout
+
+\begin_layout Description
+
+\family typewriter
+Stream<T>
+\begin_inset space ~
+\end_inset
+
+sorted()
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+ Devuelve un flujo con los elementos de este, ordenados según su orden natural.
+\end_layout
+
+\begin_layout Description
+
+\family typewriter
+\series bold
+Stream<T>
+\series default
+
+\begin_inset space ~
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+
+sorted(Comparator<?
+\begin_inset space ~
+\end_inset
+
+super
+\begin_inset space ~
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+
+T>)
+\family default
+ Devuelve un flujo con los elementos de este, ordenados según el comparador
+ dado.
+\end_layout
+
+\begin_layout Description
+
+\family typewriter
+void
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+
+forEach(Consumer<?
+\begin_inset space ~
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+super
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+T>)
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+\begin_layout Description
+
+\family typewriter
+\series bold
+long
+\series default
+
+\begin_inset space ~
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+count()
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+ Devuelve el número de elementos en el flujo.
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+
+\begin_layout Description
+
+\family typewriter
+boolean
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+\end_inset
+
+anyMatch(Predicate<?
+\begin_inset space ~
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+
+super
+\begin_inset space ~
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+
+T>)
+\family default
+ Indica si algún elemento de este flujo cum
+\begin_inset ERT
+status open
+
+\begin_layout Plain Layout
+
+
+\backslash
+-
+\end_layout
+
+\end_inset
+
+ple el predicado.
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+
+\begin_layout Description
+
+\family typewriter
+boolean
+\begin_inset space ~
+\end_inset
+
+allMatch(Predicate<?
+\begin_inset space ~
+\end_inset
+
+super
+\begin_inset space ~
+\end_inset
+
+T>)
+\family default
+ Indica si todos los elementos de este flujo cumplen el predicado.
+\end_layout
+
+\end_deeper
+\begin_layout Standard
+Donde sea aceptable una expresión lambda también es aceptable una referencia
+ a un método:
+\end_layout
+
+\begin_layout Itemize
+
+\family typewriter
+\emph on
+Clase
+\emph default
+::
+\emph on
+métodoDeClase
+\family default
+\emph default
+ equivale a 
+\family typewriter
+e -> 
+\emph on
+Clase
+\emph default
+.
+\emph on
+métodoDeClase
+\emph default
+(e)
+\family default
+.
+\end_layout
+
+\begin_layout Itemize
+
+\family typewriter
+\emph on
+Clase
+\emph default
+::
+\emph on
+métodoDeInstancia
+\family default
+\emph default
+ equivale a 
+\family typewriter
+(
+\emph on
+Clase
+\emph default
+ e) -> e.
+\emph on
+métodoDeInstancia
+\emph default
+()
+\family default
+.
+\end_layout
+
+\begin_layout Itemize
+
+\family typewriter
+\emph on
+objeto
+\emph default
+::
+\emph on
+método
+\family default
+\emph default
+ equivale a 
+\family typewriter
+e -> 
+\emph on
+objeto
+\emph default
+.
+\emph on
+método
+\emph default
+(e)
+\family default
+.
+\end_layout
+
+\begin_layout Itemize
+
+\family typewriter
+\emph on
+Clase
+\emph default
+::new
+\family default
+ equivale a 
+\family typewriter
+e -> new 
+\emph on
+Clase
+\emph default
+(e)
+\family default
+.
+\end_layout
+
+\end_body
+\end_document