File.length() a InputStream.available()

Vilhelm, Robert Robert.Vilhelm na Hypotheken-Management.com
Úterý Září 16 13:18:34 CEST 2008


Dobry den 

 

, asi jste prehlidl nasledujici:

 

available():

Returns the number of bytes that can be read (or skipped over) from this input stream WITHOUT BLOCKING by the next caller of a method for this input stream. The next caller might be the same thread or or another thread.



hezky den

Robert

 

 

________________________________

From: konference-bounces na java.cz [mailto:konference-bounces na java.cz] On Behalf Of Lukas Barton
Sent: Dienstag, 16. September 2008 10:28
To: Java
Subject: Re: File.length() a InputStream.available()

 

available() vraci neco jineho nez length(), viz javadoc:


available():

Returns the number of bytes that can be read (or skipped over) from this input stream without blocking by the next caller of a method for this input stream. The next caller might be the same thread or or another thread.

length():

Returns the length of the file denoted by this abstract pathname. The return value is unspecified if this pathname denotes a directory. 


  Lukas



On Tue, Sep 16, 2008 at 10:21 AM, Lukáš Zapletal <lukas na zapletalovi.com> wrote:

Zdravim konferenci,

metoda length() tridy File vraci long, ale metoda available() tridy
InputStream int. Je zde jisty typovy rozpor. Chtel jsem kouknout, jak
je implementovana metoda available() tridy FileInputStream, ale je to
nativni metoda.

Nevi nekdo, jak se Java od Sunu chova pri cteni velikeho souboru,
ktery presahne rozsah typu int? Co vraci metoda available tridy
FileInputStream?

LZ

--
Lukas Zapletal
http://lukas.zapletalovi.com

 



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