logo

Java.util.zip.GZIPInputStream-klasse in Java

Deze klasse implementeert een streamfilter voor het lezen van gecomprimeerde gegevens in het GZIP-bestandsformaat. Constructeurs
    GZIPInputStream(InvoerStream in) :Creëert een nieuwe invoerstroom met een standaardbuffergrootte. GZIPInputStream(InputStream in int-grootte):Creëert een nieuwe invoerstroom met de opgegeven buffergrootte.
Methoden:
    leegte close() : Closes this input stream and releases any system resources associated with the stream.
      Syntax :  public void close() throws IOException   Specified by:   close in interface Closeable   Specified by:   close in interface AutoCloseable   Overrides:   close in class InflaterInputStream   Throws:   IOException 
    int read(byte[] buf int uit int len) : Reads uncompressed data into an array of bytes. If len is not zero the method will block until some input can be decompressed; otherwise no bytes are read and 0 is returned.
      Syntax :  public int read(byte[] buf int off int len) throws IOException   Overrides:   read in class InflaterInputStream   Parameters:   buf - the buffer into which the data is read off - the start offset in the destination array b len - the maximum number of bytes read   Returns:   the actual number of bytes read or -1 if the end of the compressed input stream is reached   Throws:   NullPointerException IndexOutOfBoundsException ZipException IOException 
Methoden overgenomen van klasse java.util.zip.InflaterInputStream beschikbare vulmarkering Ondersteund lezen reset overslaan Methoden overgenomen van klasse java.io.FilterInputStream lezen Methoden overgenomen van klasse java.lang.Object kloon is gelijk aan finaliseren getClass hashCode notificeren notificerenAll toString wachten wachten wachten Programma: Java
  //Java program demonstrating GZipInputStream methods  import java.io.FileInputStream;  import java.io.FileOutputStream;  import java.io.IOException;  import java.util.Arrays; import java.util.zip.GZIPInputStream;  class GZipInputStreamDemo  {   public static void main(String[] args) throws IOException   {   FileInputStream fis = new FileInputStream('file.txt');   GZIPInputStream gzis = new GZIPInputStream(fis);     //Uncompressed FileContents   //01234567890   byte b[]=new byte[10];    //skipping 1 byte   gzis.skip(1);    //illustrating available() and   //read(byte b[]int offint len)   if( gzis.available()!=-1)   gzis.read(b);   System.out.println(Arrays.toString(b));    //closing the stream   gzis.close();   }  }  
Uitgang:
[1 2 3 4 5 6 7 8 9 0]
Quiz maken