JavaTM 2 Platform
Standard Ed. 5.0

java.io
Ŭ·¡½º FilterInputStream

java.lang.Object 
  »óÀ§¸¦ È®Àå java.io.InputStream 
      »óÀ§¸¦ È®Àå java.io.FilterInputStream
¸ðµç ±¸ÇöµÈ ÀÎÅÍÆäÀ̽º:
Closeable
¾Ë·ÁÁø Á÷°è ¼­ºê Ŭ·¡½º:
BufferedInputStream, CheckedInputStream, CipherInputStream, DataInputStream, DigestInputStream, InflaterInputStream, LineNumberInputStream, ProgressMonitorInputStream, PushbackInputStream

public class FilterInputStream
extends InputStream

FilterInputStream´Â ´Ù¸¥ ÀÔ·Â ½ºÆ®¸²À» Æ÷ÇÔÇØ, ±×°ÍÀ» µ¥ÀÌÅÍÀÇ ±âº»ÀûÀÎ ¼Ò½º·Î¼­ »ç¿ëÇØ, µ¥ÀÌÅ͸¦ µµÁß¿¡ º¯È¯Çϰųª Ãß°¡ ±â´ÉÀ» Á¦°øÇϰųª ÇÕ´Ï´Ù. FilterInputStream Ŭ·¡½º´Â ´Ü¼øÇÏ°Ô, Æ÷ÇԵǰí ÀÖ´Â ÀÔ·Â ½ºÆ®¸²¿¡ÀÇ ¸ðµç ¿ä±¸¸¦ Åë°ú½ÃÅ°´Â ¹öÀü À¸·Î InputStream ¸ðµç ¸Þ¼­µå¸¦ ¿À¹ö¶óÀ̵å(override) ÇÕ´Ï´Ù. FilterInputStream ¼­ºê Ŭ·¡½º´Â ±×·¯ÇÑ ¸Þ¼­µå¸¦ ¶ÇÇÑ ¿À¹ö¶óÀ̵å(override) ÇÒ ¼ö ÀÖ¾î Ãß°¡ÀÇ ¸Þ¼­µå ¹× Çʵ嵵 Á¦°øÇÒ ¼ö ÀÖ½À´Ï´Ù.

µµÀÔµÈ ¹öÀü :
JDK1. 0

ÇÊµå °³¿ä
protected  InputStream in
          ÇÊÅÍ Ã³¸®µÇ´Â ÀÔ·Â ½ºÆ®¸²ÀÔ´Ï´Ù.
 
»ý¼ºÀÚ °³¿ä
protected FilterInputStream (InputStream  in)
          ³ªÁß¿¡ »ç¿ëÇÒ ¼ö ÀÖµµ·Ï Àμö inÀ» this.in Çʵ忡 ÇÒ´çÇÏ´Â °Í¿¡ÀÇÇØ FilterInputStream¸¦ ÀÛ¼ºÇÕ´Ï´Ù.
 
¸Þ¼­µå °³¿ä
 int available ()
          ºí·Ï ÇÏÁö ¾Ê°í ÀÔ·Â ½ºÆ®¸²·ÎºÎÅÍ ÀоîµéÀÏ ¼ö ÀÖ´Â ¹ÙÀÌÆ®¼ö¸¦ ¸®ÅÏÇÕ´Ï´Ù.
 void close ()
          ÀÔ·Â ½ºÆ®¸²À» ´Ý¾Æ, ÀÌ ½ºÆ®¸²°ú °ü·ÃµÈ ¸ðµç system resource¸¦ ÇعæÇÕ´Ï´Ù.
 void mark (int readlimit)
          ÀÔ·Â ½ºÆ®¸²ÀÇ ÇöÀç À§Ä¡¿¡ ¸¶Å©¸¦ ¼³Á¤ÇÕ´Ï´Ù.
 boolean markSupported ()
          ÀÔ·Â ½ºÆ®¸²ÀÌ mark¿Í reset ¸Þ¼­µå¸¦ Áö¿øÇÏ°í ÀÖÀ»Áö ¾î¶³Áö¸¦ ÆÇÁ¤ÇÕ´Ï´Ù.
 int read ()
          ÀÌ ÀÔ·Â ½ºÆ®¸²·ÎºÎÅÍ, µ¥ÀÌÅÍÀÇ ´ÙÀ½ÀÇ ¹ÙÀÌÆ®¸¦ ÀоîµéÀÔ´Ï´Ù.
 int read (byte[] b)
          ÀÔ·Â ½ºÆ®¸²·ÎºÎÅÍ ¹ÙÀÌÆ® ¹è¿­¿¡ ÃÖ´ë byte.length ¹ÙÀÌÆ®ÀÇ µ¥ÀÌÅ͸¦ ÀоîµéÀÔ´Ï´Ù.
 int read (byte[] b, int off, int len)
          ÀÔ·Â ½ºÆ®¸²·ÎºÎÅÍ ¹ÙÀÌÆ® ¹è¿­¿¡ ÃÖ´ë len ¹ÙÀÌÆ®ÀÇ µ¥ÀÌÅ͸¦ ÀоîµéÀÔ´Ï´Ù.
 void reset ()
          ÀÌ ½ºÆ®¸²ÀÇ À§Ä¡¸¦, ÀÔ·Â ½ºÆ®¸²·Î ¸¶Áö¸·¿¡ mark ¸Þ¼­µå°¡ ºÒ·Á °¬À» ¶§ÀÇ ¸¶Å© À§Ä¡¿¡ Àç¼³Á¤ÇÕ´Ï´Ù.
 long skip (long n)
          ÀÔ·Â ½ºÆ®¸²·ÎºÎÅÍÀÇ µ¥ÀÌÅ͸¦ n ¹ÙÀÌÆ®¸¸ ½ºÅµÀÇÇØ ÆıâÇÕ´Ï´Ù.
 
Ŭ·¡½º java.lang. Object ·ÎºÎÅÍ »ó¼ÓµÈ ¸Þ¼­µå
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

ÇʵåÀÇ »ó¼¼

in

protected volatile InputStream  in
ÇÊÅÍ Ã³¸®µÇ´Â ÀÔ·Â ½ºÆ®¸²ÀÔ´Ï´Ù.

»ý¼ºÀÚ »ó¼¼

FilterInputStream

protected FilterInputStream(InputStream  in)
³ªÁß¿¡ »ç¿ëÇÒ ¼ö ÀÖµµ·Ï Àμö inÀ» this.in Çʵ忡 ÇÒ´çÇÏ´Â °Í¿¡ÀÇÇØ FilterInputStream¸¦ ÀÛ¼ºÇÕ´Ï´Ù.

ÆĶó¹ÌÅÍ:
in - ±âº»ÀÌ µÇ´Â ÀÔ·Â ½ºÆ®¸². ÀÌ ÀνºÅϽº°¡ ±âÃÊÀÇ ½ºÆ®¸²¾øÀÌ »ý¼ºµÇ´Â °æ¿ì´Â null
¸Þ¼­µåÀÇ »ó¼¼

read

public int read()
         throws IOException 
ÀÌ ÀÔ·Â ½ºÆ®¸²·ÎºÎÅÍ, µ¥ÀÌÅÍÀÇ ´ÙÀ½ÀÇ ¹ÙÀÌÆ®¸¦ ÀоîµéÀÔ´Ï´Ù. ±× ¹ÙÀÌÆ®´Â 0 ~ 255 ¹üÀ§ÀÇ int·Î ¼­ ¸®Åϵ˴ϴ٠. ½ºÆ®¸²ÀÇ ¸¶Áö¸·¿¡ À̸£·¯ ¹ÙÀÌÆ®°¡ ¾ø´Â °æ¿ì´Â °ª -1 ÀÌ ¸®Åϵ˴ϴ٠. ÀÌ ¸Þ¼­µå´Â ÀÔ·Â µ¥ÀÌÅÍ°¡ ÀÐÈ÷°Ô µÇ´ÂÁö, ½ºÆ®¸²ÀÇ ¸¶Áö¸·ÀÌ °ËÃâµÇ´ÂÁö, ¶Ç´Â ¿¹¿Ü°¡ Throw µÉ ¶§±îÁö ºí·Ï ÇÕ´Ï´Ù.

ÀÌ ¸Þ¼­µå´Â ´Ü¼øÇÏ°Ô in.read()¸¦ ½ÇÇàÇØ, ±× °á°ú¸¦ ¸®ÅÏÇÕ´Ï´Ù.

Á¤ÀÇ:
Ŭ·¡½º InputStream ³»ÀÇ read
¹Ýȯ°ª:
µ¥ÀÌÅÍÀÇ ´ÙÀ½ÀÇ ¹ÙÀÌÆ®. ½ºÆ®¸²ÀÇ ¸¶Áö¸·¿¡ À̸£·¶À» °æ¿ì´Â -1
¿¹¿Ü:
IOException - ÀÔÃâ·Â ¿¡·¯°¡ ¹ß»ýÇßÀ» °æ¿ì
°ü·Ã Ç׸ñ:
in

read

public int read(byte[] b)
         throws IOException 
ÀÔ·Â ½ºÆ®¸²·ÎºÎÅÍ ¹ÙÀÌÆ® ¹è¿­¿¡ ÃÖ´ë byte.length ¹ÙÀÌÆ®ÀÇ µ¥ÀÌÅ͸¦ ÀоîµéÀÔ´Ï´Ù. ÀÌ ¸Þ¼­µå´Â ÀÔ·Â µ¥ÀÌÅÍ°¡ Àб⠰¡´ÉÇÏ°Ô µÉ ¶§±îÁö ºí·Ï ÇÕ´Ï´Ù.

ÀÌ ¸Þ¼­µå´Â ´Ü¼øÇÏ°Ô read(b, 0, b.length) È£ÃâÀ» ½ÇÇàÇØ, ±× °á°ú¸¦ ¸®ÅÏÇÕ´Ï´Ù. ´ë½Å¿¡ in.read(b)°¡ ½ÇÇàµÇÁö ¾Ê°ÔÀÇÇØ ÁÖ¼¼¿ä. FilterInputStream ƯÁ¤ÀÇ ¼­ºê Ŭ·¡½º´Â ½ÇÁ¦·Î »ç¿ëµÇ°í ÀÖ´Â ±¸Çö ¹æ¹ýÀ¸·Î ÀÇÁ¸ÇÕ´Ï´Ù.

¿À¹ö¶óÀ̵å(override):
Ŭ·¡½º InputStream ³»ÀÇ read
ÆĶó¹ÌÅÍ:
b - µ¥ÀÌÅÍÀÇ readóÀÇ ¹öÆÛ
¹Ýȯ°ª:
¹öÆÛ¿¡ ÀÐÈù ¹ÙÀÌÆ®ÀÇ ÇÕ°è¼ö. ½ºÆ®¸²ÀÇ ¸¶Áö¸·¿¡ À̸£·¯ µ¥ÀÌÅÍ°¡ ¾ø´Â °æ¿ì´Â -1
¿¹¿Ü:
IOException - ÀÔÃâ·Â ¿¡·¯°¡ ¹ß»ýÇßÀ» °æ¿ì
°ü·Ã Ç׸ñ:
read(byte[], int, int)

read

public int read(byte[] b,
                int off,
                int len)
         throws IOException 
ÀÔ·Â ½ºÆ®¸²·ÎºÎÅÍ ¹ÙÀÌÆ® ¹è¿­¿¡ ÃÖ´ë len ¹ÙÀÌÆ®ÀÇ µ¥ÀÌÅ͸¦ ÀоîµéÀÔ´Ï´Ù. ÀÌ ¸Þ¼­µå´Â ÀÔ·ÂÀÌ °¡´ÉÇÏ°Ô µÉ ¶§±îÁö ºí·Ï ÇÕ´Ï´Ù.

ÀÌ ¸Þ¼­µå´Â ´Ü¼øÇÏ°Ô in.read(b, off, len)¸¦ ½ÇÇàÇØ, ±× °á°ú¸¦ ¸®ÅÏÇÕ´Ï´Ù.

¿À¹ö¶óÀ̵å(override):
Ŭ·¡½º InputStream ³»ÀÇ read
ÆĶó¹ÌÅÍ:
b - µ¥ÀÌÅÍÀÇ readóÀÇ ¹öÆÛ
off - µ¥ÀÌÅÍÀÇ °³½Ã ¿ÀÇÁ¼Â(offset)
len - ÀÐÈ÷´Â ÃÖ´ë ¹ÙÀÌÆ®¼ö
¹Ýȯ°ª:
¹öÆÛ¿¡ ÀÐÈù ¹ÙÀÌÆ®ÀÇ ÇÕ°è¼ö. ½ºÆ®¸²ÀÇ ¸¶Áö¸·¿¡ À̸£·¯ µ¥ÀÌÅÍ°¡ ¾ø´Â °æ¿ì´Â -1
¿¹¿Ü:
IOException - ÀÔÃâ·Â ¿¡·¯°¡ ¹ß»ýÇßÀ» °æ¿ì
°ü·Ã Ç׸ñ:
in

skip

public long skip(long n)
          throws IOException 
ÀÔ·Â ½ºÆ®¸²·ÎºÎÅÍÀÇ µ¥ÀÌÅ͸¦ n ¹ÙÀÌÆ®¸¸ ½ºÅµÀÇÇØ ÆıâÇÕ´Ï´Ù. ´Ù¾çÇÑ ÀÌÀ¯·ÎºÎÅÍ, skip ¸Þ¼­µå´Â ÁöÁ¤µÇ¾ú´ø °Íº¸´Ùµµ ÀûÀº ¹ÙÀÌÆ®¼ö (0ÀÎ °æ¿ìµµ ÀÖ´Ù) ¹Û¿¡ ½ºÅµ ÇÏÁö ¾Ê´Â °ÍÀÌ ÀÖ½À´Ï´Ù. ½ÇÁ¦·Î ½ºÅµ ÇÑ ¹ÙÀÌÆ®¼ö¸¦ ¸®ÅÏÇÕ´Ï´Ù.

ÀÌ ¸Þ¼­µå´Â ´Ü¼øÇÏ°Ô in.skip(n)¸¦ ½ÇÇàÇÕ´Ï´Ù.

¿À¹ö¶óÀ̵å(override):
Ŭ·¡½º InputStream ³»ÀÇ skip
ÆĶó¹ÌÅÍ:
n - ½ºÅµ ÇÏ´Â ¹ÙÀÌÆ®¼ö
¹Ýȯ°ª:
½ÇÁ¦·Î ½ºÅµ µÈ ¹ÙÀÌÆ®¼ö
¿¹¿Ü:
IOException - ÀÔÃâ·Â ¿¡·¯°¡ ¹ß»ýÇßÀ» °æ¿ì

available

public int available()
              throws IOException 
ºí·Ï ÇÏÁö ¾Ê°í ÀÔ·Â ½ºÆ®¸²·ÎºÎÅÍ ÀоîµéÀÏ ¼ö ÀÖ´Â ¹ÙÀÌÆ®¼ö¸¦ ¸®ÅÏÇÕ´Ï´Ù.

ÀÌ ¸Þ¼­µå´Â ´Ü¼øÇÏ°Ô in.available()¸¦ ½ÇÇàÇØ, ±× °á°ú¸¦ ¸®ÅÏÇÕ´Ï´Ù.

¿À¹ö¶óÀ̵å(override):
Ŭ·¡½º InputStream ³»ÀÇ available
¹Ýȯ°ª:
ºí·Ï ÇÏÁö ¾Ê°í ÀÔ·Â ½ºÆ®¸²·ÎºÎÅÍ ÀоîµéÀÏ ¼ö ÀÖ´Â ¹ÙÀÌÆ®¼ö
¿¹¿Ü:
IOException - ÀÔÃâ·Â ¿¡·¯°¡ ¹ß»ýÇßÀ» °æ¿ì
°ü·Ã Ç׸ñ:
in

close

public void close()
           throws IOException 
ÀÔ·Â ½ºÆ®¸²À» ´Ý¾Æ, ÀÌ ½ºÆ®¸²°ú °ü·ÃµÈ ¸ðµç system resource¸¦ ÇعæÇÕ´Ï´Ù. ÀÌ ¸Þ¼­µå´Â ´Ü¼øÇÏ°Ô in.close()¸¦ ½ÇÇàÇÕ´Ï´Ù.

Á¤ÀÇ:
ÀÎÅÍÆäÀ̽º Closeable ³»ÀÇ close
¿À¹ö¶óÀ̵å(override):
Ŭ·¡½º InputStream ³»ÀÇ close
¿¹¿Ü:
IOException - ÀÔÃâ·Â ¿¡·¯°¡ ¹ß»ýÇßÀ» °æ¿ì
°ü·Ã Ç׸ñ:
in

mark

public void mark(int readlimit)
ÀÔ·Â ½ºÆ®¸²ÀÇ ÇöÀç À§Ä¡¿¡ ¸¶Å©¸¦ ¼³Á¤ÇÕ´Ï´Ù. ÀÌ°Í¿¡ À̾î reset ¸Þ¼­µå¸¦ È£ÃâÇϸé, ¸¶Áö¸·¿¡ ¸¶Å©°¡ ¼³Á¤µÈ À§Ä¡¿¡ ½ºÆ®¸²À» Àç¼³Á¤Çϱâ À§ÇØ, ´ÙÀ½¹øÀÇ read Á¶ÀÛ¿¡¼­´Â °°Àº ¹ÙÀÌÆ®·ÎºÎÅÍ ÀоîµéÀÌ°Ô µË´Ï´Ù.

Àμö readlimit´Â ÀÌ ÀÔ·Â ½ºÆ®¸²¿¡ ´ëÇؼ­ ¸¶Å© À§°ªÀÌ ¹«È¿°¡ µÇ±â Àü¿¡ ÀÌ Àμö°¡ ÁöÁ¤ÇÏ´Â ¹ÙÀÌÆ®¼ö¸¦ ÀоîµéÀ̵µ·Ï Áö½ÃÇÕ´Ï´Ù.

ÀÌ ¸Þ¼­µå´Â ´Ü¼øÇÏ°Ô in.mark(readlimit)¸¦ ½ÇÇàÇÕ´Ï´Ù.

¿À¹ö¶óÀ̵å(override):
Ŭ·¡½º InputStream ³»ÀÇ mark
ÆĶó¹ÌÅÍ:
readlimit - ¸¶Å© À§°ªÀÌ ¹«È¿°¡ µÇ±â Àü¿¡ Àб⠰¡´ÉÇÑ ¹ÙÀÌÆ®ÀÇ ÃÖ´ë ¸®¹ÔÆ®
°ü·Ã Ç׸ñ:
in, reset()

reset

public void reset()
           throws IOException 
ÀÌ ½ºÆ®¸²ÀÇ À§Ä¡¸¦, ÀÔ·Â ½ºÆ®¸²·Î ¸¶Áö¸·¿¡ mark ¸Þ¼­µå°¡ ºÒ·Á °¬À» ¶§ÀÇ ¸¶Å© À§Ä¡¿¡ Àç¼³Á¤ÇÕ´Ï´Ù.

ÀÌ ¸Þ¼­µå´Â ´Ü¼øÇÏ°Ô in.reset()¸¦ ½ÇÇàÇÕ´Ï´Ù.

½ºÆ®¸²ÀÇ ¸¶Å©´Â ½ºÆ®¸²¿¡ ¹«¾ùÀÌ Æ÷ÇԵǾî ÀÖ´ÂÁö¸¦ üũÇϱâ À§Çؼ­ Á¶±Ý µ¥ÀÌÅ͸¦ ¿¹ÃøÇϱâ À§Çؼ­ »ç¿ëµË´Ï´Ù. ÀÌ°ÍÀ» °¡Àå ¿ëÀÌÇÏ°Ô ½ÇÇàÇÏ´Â ¹æ¹ýÀº ÀϹÝÀûÀÎ Æļ­¸¦ È£ÃâÇÏ´Â °ÍÀÔ´Ï´Ù. ½ºÆ®¸²À» Æļ­·Î Ãë±ÞÇÒ ¼ö Àִ ŸÀÔÀ̸é, ÀÌ°ÍÀ¸·Î ¸ðµÎ Àß µÇ¾î°©´Ï´Ù. ½ºÆ®¸²ÀÌ ÀÌ·¯ÇÑ Å¸ÀÔÀÌ ¾Æ´Ñ °æ¿ì´Â Æļ­°¡ ½ÇÆÐÇÑ Àå¼Ò¿¡¼­ ¿¹¿Ü¸¦ ¹ß»ý½Ãŵ´Ï´Ù. readlimit ¹ÙÀÌÆ®ÀÇ ¹üÀ§³»¿¡¼­ ÀÌ°ÍÀÌ ¹ß»ýÇßÀ» °æ¿ì´Â ¿¹¿Ü¸¦ °ËÁöÇÑ ¿ÜºÎ Äڵ尡 ½ºÆ®¸²À» ¸®¼Â ÇØ, º°µµÀÎ Æļ­·Î Àç½ÃÇàÇÒ ¼ö ÀÖ½À´Ï´Ù .

¿À¹ö¶óÀ̵å(override):
Ŭ·¡½º InputStream ³»ÀÇ reset
¿¹¿Ü:
IOException - ½ºÆ®¸²¿¡ ¸¶Å©°¡ ¼³Á¤µÇ¾î ÀÖÁö ¾Ê¾Ò´ø °æ¿ì, ¶Ç´Â ¸¶Å©°¡ ¹«È¿°¡ µÇ¾î ÀÖ¾úÀ» °æ¿ì
°ü·Ã Ç׸ñ:
in, mark(int)

markSupported

public boolean markSupported()
ÀÔ·Â ½ºÆ®¸²ÀÌ mark¿Í reset ¸Þ¼­µå¸¦ Áö¿øÇÏ°í ÀÖÀ»Áö ¾î¶³Áö¸¦ ÆÇÁ¤ÇÕ´Ï´Ù. ÀÌ ¸Þ¼­µå´Â ´Ü¼øÇÏ°Ô in.markSupported()¸¦ ½ÇÇàÇÕ´Ï´Ù.

¿À¹ö¶óÀ̵å(override):
Ŭ·¡½º InputStream ³»ÀÇ markSupported
¹Ýȯ°ª:
½ºÆ®¸²ÀÌ mark¿Í reset ¸Þ¼­µå¸¦ Áö¿øÇϴ ŸÀÔÀÇ °æ¿ì´Â true, ±×·¸Áö ¾ÊÀº °æ¿ì´Â false
°ü·Ã Ç׸ñ:
in, InputStream.mark(int), InputStream.reset()

JavaTM 2 Platform
Standard Ed. 5.0

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