Java.util.zip.DeflaterInputStream-klassen i Java Denne klassen implementerer et utgangsstrømfilter for å komprimere data i "deflate"-komprimeringsformatet. Den brukes også som grunnlag for andre typer kompresjonsfiltre som GZIPOutputStream. Konstruktører og beskrivelse
DeflaterOutputStream(OutputStream out):
Oppretter en ny utgangsstrøm med standard kompressor og bufferstørrelse.
DeflaterOutputStream(OutputStream out boolean syncFlush):
Oppretter en ny utgangsstrøm med en standard kompressor, standard bufferstørrelse og spesifisert spylemodus.
DeflaterOutputStream(OutputStream out Deflater def) :
Oppretter en ny utgangsstrøm med den angitte kompressoren og en standard bufferstørrelse.
DeflaterOutputStream(OutputStream out Deflater def boolean syncFlush):
Oppretter en ny utgangsstrøm med spesifisert kompressorskyllemodus og en standard bufferstørrelse.
DeflaterOutputStream(OutputStream out Deflater def int size):
Oppretter en ny utgangsstrøm med spesifisert kompressor og bufferstørrelse.
DeflaterOutputStream(OutputStream out Deflater def int size boolean syncFlush):
Oppretter en ny utgangsstrøm med spesifisert kompressorbufferstørrelse og spylemodus. Metoder:
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
beskyttet void deflate():
Writes next block of compressed data to the output stream.
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 skrive(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 DeflaterOutputStreamimportjava.io.FileInputStream;importjava.io.FileOutputStream;importjava.io.IOException;importjava.util.zip.DeflaterOutputStream;classDeflaterOutputStreamDemo{publicstaticvoidmain(String[]args)throwsIOException{FileOutputStreamfos=newFileOutputStream('file2.txt');//Assign FileOutputStream to DeflaterOutputStreamDeflaterOutputStreamdos=newDeflaterOutputStream(fos);//write it into DeflaterOutputStreamfor(inti=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 streamdos.finish();//fos is not closed//writing some data on filefos.write('G');//Writes remaining compressed data to the output stream// closes the underlying stream.dos.close();}}
Note: Utdata fra programmet vil ikke være synlig på online IDE da file2.txt ikke kan leses her. Lag quiz