Această clasă implementează un filtru de flux pentru citirea datelor comprimate în formatul de fișier GZIP. Constructorii
GZIPInputStream(InputStream in):
Creează un nou flux de intrare cu o dimensiune implicită a tamponului.
GZIPInputStream(InputStream în dimensiune int):
Creează un nou flux de intrare cu dimensiunea tampon specificată. Metode:
void 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 off 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
Metode moștenite din clasa java.util.zip.InflaterInputStream marca de umplere disponibilă. Omitere resetare pentru citire acceptată Metode moștenite din clasa java.io.FilterInputStream citire Metode moștenite din clasa java.lang.Object clone equals finalize getClass hashCode notify notifyAll toString wait wait wait Program: Java
//Java program demonstrating GZipInputStream methods importjava.io.FileInputStream;importjava.io.FileOutputStream;importjava.io.IOException;importjava.util.Arrays;importjava.util.zip.GZIPInputStream;classGZipInputStreamDemo{publicstaticvoidmain(String[]args)throwsIOException{FileInputStreamfis=newFileInputStream('file.txt');GZIPInputStreamgzis=newGZIPInputStream(fis);//Uncompressed FileContents //01234567890 byteb[]=newbyte[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();}}