Šioje klasėje įdiegtas srauto filtras, skirtas nuskaityti suspaustus duomenis GZIP failo formatu. Konstruktoriai
GZIPInputStream(InputStream in):
Sukuria naują įvesties srautą su numatytuoju buferio dydžiu.
GZIPInputStream (InputStream int dydžiu):
Sukuria naują įvesties srautą su nurodytu buferio dydžiu. Metodai:
tuščias uždarymas () :
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(baitas[] 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
Metodai, paveldėti iš klasės java.util.zip.InflaterInputStream galimas užpildymo ženklas Palaikomas skaitymo nustatymas iš naujo praleisti Metodai, paveldėti iš klasės java.io.FilterInputStream skaityti Metodai, paveldėti iš klasės java.lang.Object klonas lygus užbaigti getClass hashCode notify notifyAll toString palauk palauk palauk Programa: 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();}}