Please Help its urgent........requirement is to read a .gz file

Question

and to randomly acces it...
If i read the file line by line using GZIPInputStream it takes lot of time...
My requirement is to pick some line (say 35000) randomly......
Please suggest any alternative.....

Answer 1

use this code to unzip a .gzip file:
try {
        // Open the compressed file
        String inFilename = "infile.gzip";
        GZIPInputStream in = new GZIPInputStream(new FileInputStream(inFilename));
        // Open the output file
        String outFilename = "outfile";
        OutputStream out = new FileOutputStream(outFilename);
        // Transfer bytes from the compressed file to the output file
        byte[] buf = new byte[1024];
        int len;
        while ((len = in.read(buf)) > 0) {
            out.write(buf, 0, len);
        // Close the file and stream
        in.close();
        out.close();
    } catch (IOException e) {
    }