Classe Java.util.zip.DeflaterOutputStream a Java

Classe Java.util.zip.DeflaterInputStream a Java Aquesta classe implementa un filtre de flux de sortida per comprimir dades en el format de compressió "desinflat". També s'utilitza com a base per a altres tipus de filtres de compressió com GZIPOutputStream. Constructors i descripció
    DeflaterOutputStream (sortida OutputStream): Crea un flux de sortida nou amb un compressor i una mida de memòria intermèdia per defecte. DeflaterOutputStream(OutputStream out boolean syncFlush): Crea un nou flux de sortida amb un compressor predeterminat, una mida de memòria intermèdia predeterminada i el mode de neteja especificat. DeflaterOutputStream(OutputStream out Deflater def): Crea un nou flux de sortida amb el compressor especificat i una mida de memòria intermèdia predeterminada. DeflaterOutputStream(OutputStream out Deflater def boolean syncFlush): Crea un flux de sortida nou amb el mode de neteja del compressor especificat i una mida de memòria intermèdia predeterminada. DeflaterOutputStream(OutputStream out Deflater def int mida): Crea un flux de sortida nou amb el compressor i la mida del buffer especificats. DeflaterOutputStream(OutputStream out Deflater def int size boolean syncFlush): Crea un flux de sortida nou amb la mida del buffer del compressor i el mode de neteja especificats.
Mètodes:
    void close(): Writes remaining compressed data to the output stream and closes the underlying stream.
      Syntax :  public void close() throws IOException   Overrides:   close in class FilterOutputStream   Throws:   IOException 
    desinflat de buit protegit(): Writes next block of compressed data to the output stream.
      Syntax :  protected void deflate() throws IOException   Throws:   IOException 
    acabat buit(): Finishes writing compressed data to the output stream without closing the underlying stream.
      Syntax :  public void finish() throws IOException   Throws:   IOException 
    void flush(): Flushes the compressed output stream.
      Syntax :  public void flush() throws IOException   Overrides:   flush in class FilterOutputStream   Throws:   IOException 
    void write(byte[] b int off int len): Writes an array of bytes to the compressed output stream.
      Syntax :  public void write(byte[] b int off int len) throws IOException   Overrides:   write in class FilterOutputStream   Parameters:   b - the data to be written off - the start offset of the data len - the length of the data   Throws:   IOException 
    void write(int b): Writes a byte to the compressed output stream.
      Syntax :  public void write(int b) throws IOException   Overrides:   write in class FilterOutputStream   Parameters:   b - the byte to be written   Throws:   IOException 
Java
   //Java program to demonstrate DeflaterOutputStream   import     java.io.FileInputStream  ;   import     java.io.FileOutputStream  ;   import     java.io.IOException  ;   import     java.util.zip.DeflaterOutputStream  ;   class   DeflaterOutputStreamDemo   {      public     static     void     main  (  String  []     args  )     throws     IOException         {      FileOutputStream     fos     =     new     FileOutputStream  (  'file2.txt'  );      //Assign FileOutputStream to DeflaterOutputStream      DeflaterOutputStream     dos     =     new     DeflaterOutputStream  (  fos  );      //write it into DeflaterOutputStream      for     (  int     i     =     0  ;     i      <  10     ;     i  ++  )         {      dos  .  write  (  i  );      }          //illustrating flush() method()      dos  .  flush  ();          //illustrating finish()      //Finishes writing compressed data to the output stream      // without closing the underlying stream      dos  .  finish  ();          //fos is not closed      //writing some data on file      fos  .  write  (  'G'  );          //Writes remaining compressed data to the output stream      // closes the underlying stream.      dos  .  close  ();      }   }   
Nota: La sortida del programa no serà visible a l'IDE en línia ja que el fitxer file2.txt no es pot llegir aquí. Crea un qüestionari