logo

TechCodeview

Java.util.zip.DeflaterOutputStream klasa u Javi

Java.util.zip.DeflaterInputStream klasa u Javi Ova klasa implementira filtar izlaznog toka za komprimiranje podataka u 'deflate' kompresijskom formatu. Također se koristi kao osnova za druge vrste kompresijskih filtara kao što je GZIPOutputStream. Konstruktori i opis
    DeflaterOutputStream(OutputStream out) :Stvara novi izlazni tok sa zadanim kompresorom i veličinom međuspremnika. DeflaterOutputStream(OutputStream out boolean syncFlush) :Stvara novi izlazni tok sa zadanim kompresorom, zadanom veličinom međuspremnika i navedenim načinom ispiranja. DeflaterOutputStream(OutputStream out Deflater def) :Stvara novi izlazni tok s navedenim kompresorom i zadanom veličinom međuspremnika. DeflaterOutputStream(OutputStream out Deflater def boolean syncFlush) :Stvara novi izlazni tok s navedenim načinom ispiranja kompresora i zadanom veličinom međuspremnika. DeflaterOutputStream(OutputStream out Deflater def int size) :Stvara novi izlazni tok s navedenim kompresorom i veličinom međuspremnika. DeflaterOutputStream(OutputStream out Deflater def int size boolean syncFlush) :Stvara novi izlazni tok s navedenom veličinom međuspremnika kompresora i načinom ispiranja.
Metode:
    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
    zaštićeni void deflate() : Writes next block of compressed data to the output stream. 
      Syntax :  protected void deflate() throws IOException   Throws:   IOException
    void finish() : 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();  } }
Bilješka: Izlaz programa neće biti vidljiv na mrežnom IDE jer se file2.txt ne može pročitati ovdje. Napravi kviz