path: root/poo/na.lyx

#LyX 2.3 created this file. For more info see http://www.lyx.org/
\lyxformat 544
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\index Index
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\end_header

\begin_body

\begin_layout Section*

\family typewriter
java.io
\end_layout

\begin_layout Description

\family typewriter
\series bold
public
\begin_inset space ~
\end_inset

interface
\begin_inset space ~
\end_inset

Closeable
\family default
\series default
 
\begin_inset Note Comment
status open

\begin_layout Plain Layout

\family typewriter
extends AutoCloseable
\end_layout

\end_inset

 Fuente o destino de datos que puede ser cerrado.
\end_layout

\begin_deeper
\begin_layout Description

\family typewriter
\series bold
void
\begin_inset space ~
\end_inset

close()
\family default
\series default
 
\begin_inset Note Comment
status open

\begin_layout Plain Layout

\family typewriter
throws IOException
\end_layout

\end_inset

Cierra este flujo y libera cualquier recurso asociado con él.
\end_layout

\end_deeper
\begin_layout Description

\family typewriter
\series bold
public
\begin_inset space ~
\end_inset

class
\begin_inset space ~
\end_inset

FileNotFoundException
\begin_inset space ~
\end_inset

extends
\begin_inset space ~
\end_inset

IOException
\family default
\series default
 Indica que ha fallado un intento de abrir el fichero con nombre especificado.
\end_layout

\begin_layout Description

\family typewriter
\series bold
public
\begin_inset space ~
\end_inset

class
\begin_inset space ~
\end_inset

IOException
\begin_inset space ~
\end_inset

extends
\begin_inset space ~
\end_inset

Exception
\family default
\series default
 Señaliza una excepción de E/S.
\end_layout

\begin_deeper
\begin_layout Description

\family typewriter
public
\begin_inset space ~
\end_inset

IOException(String)
\family default
 Construye una 
\family typewriter
IOException
\family default
 con el mensaje especificado.
\end_layout

\end_deeper
\begin_layout Description

\family typewriter
\series bold
public
\begin_inset space ~
\end_inset

abstract
\begin_inset space ~
\end_inset

class
\begin_inset space ~
\end_inset

InputStream
\begin_inset space ~
\end_inset


\series default
implements
\begin_inset space ~
\end_inset

Closeable
\family default
 Representa un flujo de entrada de bytes.
\begin_inset Note Comment
status open

\begin_layout Plain Layout

\family typewriter
abstract int read()
\end_layout

\end_inset


\end_layout

\begin_layout Description

\family typewriter
\series bold
public
\begin_inset space ~
\end_inset

class
\begin_inset space ~
\end_inset

PrintStream 
\series default

\begin_inset Note Comment
status open

\begin_layout Plain Layout

\family typewriter
extends FilterOutputStream
\end_layout

\end_inset


\family default
 Añade a otro flujo de salida la habilidad de imprimir representaciones
 de datos convenientemente.
\end_layout

\begin_deeper
\begin_layout Description

\family typewriter
public
\begin_inset space ~
\end_inset

void
\begin_inset space ~
\end_inset

println(String)
\family default
 Imprime una cadena y termina la línea.
\end_layout

\end_deeper
\begin_layout Description

\family typewriter
\series bold
public
\begin_inset space ~
\end_inset

abstract
\begin_inset space ~
\end_inset

class
\begin_inset space ~
\end_inset

PrintWriter
\family default
\series default
 
\begin_inset Note Comment
status open

\begin_layout Plain Layout

\family typewriter
extends Writer
\end_layout

\end_inset

Imprime representaciones de objetos con formato a un flujo de salida de
 texto.
\begin_inset Note Comment
status open

\begin_layout Plain Layout

\family typewriter
public abstract class Writer()
\end_layout

\begin_layout Plain Layout

\family typewriter
\begin_inset space ~
\end_inset


\begin_inset space ~
\end_inset

public abstract void close() throws IOException
\end_layout

\begin_layout Plain Layout

\family typewriter
\begin_inset space ~
\end_inset


\begin_inset space ~
\end_inset

public abstract void flush() throws IOException
\end_layout

\begin_layout Plain Layout

\family typewriter
\begin_inset space ~
\end_inset


\begin_inset space ~
\end_inset

public abstract void write(char[],int,int)
\end_layout

\end_inset


\end_layout

\begin_deeper
\begin_layout Description

\family typewriter
\series bold
public
\begin_inset space ~
\end_inset

PrintWriter(String)
\begin_inset space ~
\end_inset

throws
\begin_inset space ~
\end_inset

FileNotFoundException
\family default
\series default
 Construye un nuevo 
\family typewriter
PrintWriter
\family default
 con el nombre de fichero indicado.
\end_layout

\begin_layout Description

\family typewriter
\series bold
public
\begin_inset space ~
\end_inset

boolean
\begin_inset space ~
\end_inset

checkError()
\family default
\series default
 Comprueba su estado de error.
\end_layout

\begin_layout Description

\family typewriter
public
\begin_inset space ~
\end_inset

void
\begin_inset space ~
\end_inset

println(String)
\family default
 Imprime una cadena y termina la línea.
\end_layout

\end_deeper
\begin_layout Section*

\family typewriter
java.lang
\end_layout

\begin_layout Description

\family typewriter
\series bold
public
\begin_inset space ~
\end_inset

final
\begin_inset space ~
\end_inset

class
\begin_inset space ~
\end_inset

Integer
\end_layout

\begin_deeper
\begin_layout Description

\family typewriter
public
\begin_inset space ~
\end_inset

static
\begin_inset space ~
\end_inset

String
\begin_inset space ~
\end_inset

toHexString(int)
\family default
 Devuelve una representación textual del argumento entero como entero sin
 signo en base 16, una cadena de dígitos ASCII en hexadecimal sin 
\family typewriter
0
\family default
s extra a la izquierda.
\end_layout

\end_deeper
\begin_layout Description

\family typewriter
\series bold
public
\begin_inset space ~
\end_inset

final
\begin_inset space ~
\end_inset

class
\begin_inset space ~
\end_inset

Math
\end_layout

\begin_deeper
\begin_layout Description

\family typewriter
\series bold
public
\begin_inset space ~
\end_inset

static
\begin_inset space ~
\end_inset

final
\begin_inset space ~
\end_inset

double
\begin_inset space ~
\end_inset

PI
\family default
\series default
 El valor de doble precisión más cerca que cualquier otro a 
\begin_inset Formula $\pi$
\end_inset

.
\end_layout

\begin_layout Description

\family typewriter
public
\begin_inset space ~
\end_inset

static
\begin_inset space ~
\end_inset

double
\begin_inset space ~
\end_inset

sqrt(double)
\family default
 Devuelve la raíz cuadrada positiva de un valor correctamente redondeada.
\end_layout

\begin_layout Description

\family typewriter
\series bold
public
\begin_inset space ~
\end_inset

static
\begin_inset space ~
\end_inset

double
\begin_inset space ~
\end_inset

pow(double,
\begin_inset space ~
\end_inset

double)
\family default
\series default
 Devuelve el primer argumento elevado a la potencia del segundo.
\end_layout

\end_deeper
\begin_layout Description

\family typewriter
public
\begin_inset space ~
\end_inset

final
\begin_inset space ~
\end_inset

class
\begin_inset space ~
\end_inset

String
\begin_inset space ~
\end_inset

implements
\begin_inset space ~
\end_inset

CharSequence
\family default
 
\begin_inset Note Comment
status open

\begin_layout Plain Layout

\family typewriter
, Serializable, Comparable<String>
\end_layout

\end_inset

Representa cadenas inmutables de caracteres.
 Todos los literales de cadena en programas Java, como 
\family typewriter
"
\emph on
abc
\emph default
"
\family default
, son instancias de esta clase.
 El lenguaje proporciona soporte especial para el operador de concatenación
 (
\family typewriter
+
\family default
), y para conversión de otros objetos a cadenas al concatenar.
 Las conversiones se implementan mediante el método 
\family typewriter
toString
\family default
.
\begin_inset Note Comment
status open

\begin_layout Plain Layout

\family typewriter
public interface CharSequence
\end_layout

\begin_layout Plain Layout

\family typewriter
\begin_inset space ~
\end_inset


\begin_inset space ~
\end_inset

char charAt(int)
\end_layout

\begin_layout Plain Layout

\family typewriter
\begin_inset space ~
\end_inset


\begin_inset space ~
\end_inset

int length()
\end_layout

\begin_layout Plain Layout

\family typewriter
\begin_inset space ~
\end_inset


\begin_inset space ~
\end_inset

CharSequence subSequence(int, int)
\end_layout

\begin_layout Plain Layout

\family typewriter
\begin_inset space ~
\end_inset


\begin_inset space ~
\end_inset

String toString()
\end_layout

\end_inset


\end_layout

\begin_deeper
\begin_layout Description

\family typewriter
public
\begin_inset space ~
\end_inset

boolean
\begin_inset space ~
\end_inset

contains(CharSequence)
\family default
 Indica si esta cadena contiene la secuencia de caracteres especificada.
\end_layout

\begin_layout Description

\family typewriter
public
\begin_inset space ~
\end_inset

int
\begin_inset space ~
\end_inset

length()
\family default
 Devuelve el número de unidades de código Unicode en la cadena.
\end_layout

\end_deeper
\begin_layout Description

\family typewriter
public
\begin_inset space ~
\end_inset

final
\begin_inset space ~
\end_inset

class
\begin_inset space ~
\end_inset

System
\end_layout

\begin_deeper
\begin_layout Description

\family typewriter
\series bold
public
\begin_inset space ~
\end_inset

static
\begin_inset space ~
\end_inset

final
\begin_inset space ~
\end_inset

InputStream
\begin_inset space ~
\end_inset

in
\family default
\series default
 El flujo de entrada estándar.
\end_layout

\begin_layout Description

\family typewriter
public
\begin_inset space ~
\end_inset

static
\begin_inset space ~
\end_inset

final
\begin_inset space ~
\end_inset

PrintStream
\begin_inset space ~
\end_inset

out
\family default
 El flujo de salida estándar.
\end_layout

\end_deeper
\begin_layout Section*

\family typewriter
java.net
\end_layout

\begin_layout Description

\family typewriter
\series bold
public
\begin_inset space ~
\end_inset

class
\begin_inset space ~
\end_inset

MalformedURLException
\begin_inset space ~
\end_inset

extends
\begin_inset space ~
\end_inset

IOException
\family default
\series default
 Indica una URL mal formada.
\end_layout

\begin_layout Description

\family typewriter
\series bold
public
\begin_inset space ~
\end_inset

final
\begin_inset space ~
\end_inset

class
\begin_inset space ~
\end_inset

URL
\family default
\series default
 
\begin_inset Note Comment
status open

\begin_layout Plain Layout

\family typewriter
implements Serializable
\end_layout

\end_inset

Representa una URL.
\end_layout

\begin_deeper
\begin_layout Description

\family typewriter
public
\begin_inset space ~
\end_inset

URL(String)
\begin_inset space ~
\end_inset

throws
\begin_inset space ~
\end_inset

MalformedURLException
\family default
 Construye una URL a partir de su representación como cadena.
\end_layout

\begin_layout Description

\family typewriter
\series bold
public
\begin_inset space ~
\end_inset

final
\begin_inset space ~
\end_inset

InputStream
\begin_inset space ~
\end_inset

openStream()
\begin_inset space ~
\end_inset

throws
\begin_inset space ~
\end_inset

IOException
\family default
\series default
 Abre una conexión a la URL y devuelve un 
\family typewriter
InputStream
\family default
 para leer de esta.
\end_layout

\end_deeper
\begin_layout Section*

\family typewriter
java.time
\end_layout

\begin_layout Description

\family typewriter
public
\begin_inset space ~
\end_inset

final
\begin_inset space ~
\end_inset

class
\begin_inset space ~
\end_inset

LocalTime
\begin_inset space ~
\end_inset

implements
\begin_inset space ~
\end_inset

ChronoLocalDate
\family default
 
\begin_inset Note Comment
status open

\begin_layout Plain Layout

\family typewriter
, Temporal, TemporalAdjuster, Serializable
\end_layout

\end_inset

Fecha sin zona horaria.
 Inmutable.
\end_layout

\begin_deeper
\begin_layout Description

\family typewriter
public
\begin_inset space ~
\end_inset

static
\begin_inset space ~
\end_inset

LocalDate
\begin_inset space ~
\end_inset

now()
\family default
 Obtiene la fecha actual del reloj del sistema en la zona horaria por defecto.
\end_layout

\begin_layout Description

\family typewriter
\series bold
public
\begin_inset space ~
\end_inset

static
\begin_inset space ~
\end_inset

LocalDate
\begin_inset space ~
\end_inset

of(int,
\begin_inset space ~
\end_inset

int,
\begin_inset space ~
\end_inset

int) 
\family default
\series default

\begin_inset Note Comment
status open

\begin_layout Plain Layout

\family typewriter
throws DateTimeException
\end_layout

\end_inset

Obtiene una instancia de 
\family typewriter
LocalDate
\family default
 desde un año, mes y día, respectivamente.
\end_layout

\end_deeper
\begin_layout Section*

\family typewriter
java.time.chrono
\end_layout

\begin_layout Description

\family typewriter
public
\begin_inset space ~
\end_inset

interface
\begin_inset space ~
\end_inset

ChronoLocalDate
\family default
\series medium
 
\begin_inset Note Greyedout
status open

\begin_layout Plain Layout

\end_layout

\end_inset

 
\series default

\begin_inset Note Comment
status open

\begin_layout Plain Layout

\family typewriter
extends Temporal, TemporalAdjuster, Comparable<ChronoLocalDate>
\end_layout

\end_inset


\begin_inset Note Comment
status open

\begin_layout Plain Layout

\family typewriter
public interface Temporal extends TemporalAccessor
\end_layout

\begin_layout Plain Layout

\family typewriter
\begin_inset space ~
\end_inset


\begin_inset space ~
\end_inset

boolean isSupported(TemporalUnit)
\end_layout

\begin_layout Plain Layout

\family typewriter
\begin_inset space ~
\end_inset


\begin_inset space ~
\end_inset

Temporal plus(long,TemporalUnit) throws DateTimeException, UnsupportedTemporalEx
ception, ArithmeticException
\end_layout

\begin_layout Plain Layout

\family typewriter
\begin_inset space ~
\end_inset


\begin_inset space ~
\end_inset

long until(Temporal, TemporalUnit) throws DateTimeException, UnsupportedTemporal
TypeException, ArithmeticException
\end_layout

\begin_layout Plain Layout

\family typewriter
\begin_inset space ~
\end_inset


\begin_inset space ~
\end_inset

Temporal with(TemporalField, long) throws DateTimeException, UnsupportedTemporal
TypeException, ArithmeticException
\end_layout

\begin_layout Plain Layout

\family typewriter
default boolean isSupported(TemporalUnit)
\end_layout

\begin_layout Plain Layout

\family typewriter
default Temporal plus(long,TemporalUnit) throws DateTimeException, ArithmeticExc
eption
\end_layout

\begin_layout Plain Layout

\family typewriter
default Temporal with(TemporalField, long) throws DateTimeException, Unsupported
TemporalTypeException, ArithmeticException
\end_layout

\begin_layout Plain Layout

\family typewriter
boolean equals(Object)
\end_layout

\begin_layout Plain Layout

\family typewriter
Chronology getChronology()
\end_layout

\begin_layout Plain Layout

\family typewriter
int hashCode()
\end_layout

\begin_layout Plain Layout

\family typewriter
int lengthOfMonth()
\end_layout

\begin_layout Plain Layout

\family typewriter
String toString()
\end_layout

\begin_layout Plain Layout

\family typewriter
ChronoPeriod until(ChronoLocalDate) throws DateTimeException, ArithmeticExceptio
n
\end_layout

\end_inset


\end_layout

\begin_deeper
\begin_layout Description

\family typewriter
default
\begin_inset space ~
\end_inset

boolean
\begin_inset space ~
\end_inset

isAfter(ChronoLocalDate)
\family default
 Comprueba si esta fecha es posterior a la especificada.
\end_layout

\begin_layout Description

\family typewriter
default
\begin_inset space ~
\end_inset

boolean
\begin_inset space ~
\end_inset

isBefore(ChronoLocalDate)
\family default
 Comprueba si es anterior.
\end_layout

\begin_layout Description

\family typewriter
default
\begin_inset space ~
\end_inset

boolean
\begin_inset space ~
\end_inset

isEqual(ChronoLocalDate)
\family default
 Comprueba si es igual.
\end_layout

\end_deeper
\begin_layout Section*

\family typewriter
java.util
\end_layout

\begin_layout Description

\family typewriter
\series bold
public
\begin_inset space ~
\end_inset

class
\begin_inset space ~
\end_inset

Random
\family default
\series default
 
\begin_inset Note Comment
status open

\begin_layout Plain Layout

\family typewriter
implements Serializable
\end_layout

\end_inset

Genera números pseudoaleatorios.
\end_layout

\begin_deeper
\begin_layout Description

\family typewriter
\series bold
public
\series default

\begin_inset space ~
\end_inset

Random()
\family default
 Construye un generador de números aleatorios.
\end_layout

\begin_layout Description

\family typewriter
public
\begin_inset space ~
\end_inset

int
\begin_inset space ~
\end_inset

nextInt(int)
\family default
 
\begin_inset Note Comment
status open

\begin_layout Plain Layout

\family typewriter
throws IllegalArgumentException
\end_layout

\end_inset

Devuelve un valor entero pseudoaleatorio distribuido uniformemente entre
 0 (inclusive) y el valor especificado (exclusive), extraído de la secuencia
 del generador.
\end_layout

\end_deeper
\begin_layout Description

\family typewriter
public
\begin_inset space ~
\end_inset

final
\begin_inset space ~
\end_inset

class
\begin_inset space ~
\end_inset

Scanner
\begin_inset space ~
\end_inset

implements
\begin_inset space ~
\end_inset

Closeable
\family default
 
\begin_inset Note Comment
status open

\begin_layout Plain Layout

\family typewriter
, Iterator<String>
\end_layout

\end_inset

Escáner de texto simple.
\end_layout

\begin_deeper
\begin_layout Description

\family typewriter
public
\begin_inset space ~
\end_inset

Scanner(InputStream)
\family default
 Construye un escáner que produce valores del flujo de entrada especificado.
\end_layout

\begin_layout Description

\family typewriter
public
\begin_inset space ~
\end_inset

String
\begin_inset space ~
\end_inset

nextLine()
\family default
 Devuelve el resto de la línea actual, excluyendo cualquier separador de
 línea al final.
 La posición se establece al principio de la siguiente línea.
\end_layout

\end_deeper
\begin_layout Description

\family typewriter
public
\begin_inset space ~
\end_inset

final
\begin_inset space ~
\end_inset

class
\begin_inset space ~
\end_inset

UUID
\family default
 
\begin_inset Note Comment
status open

\begin_layout Plain Layout

\family typewriter
implements Serializable, Comparable<UUID>
\end_layout

\end_inset

Representa unn identificador único universal.
\end_layout

\begin_deeper
\begin_layout Description

\family typewriter
public
\begin_inset space ~
\end_inset

static
\begin_inset space ~
\end_inset

UUID
\begin_inset space ~
\end_inset

randomUUID()
\family default
 Obtiene un UUID usando un generador de números pseudoaleatorios.
\end_layout

\end_deeper
\end_body
\end_document