The Java Developers Almanac 1.4


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Home > List of Packages > java.util.zip  [9 examples] > ZIP  [3 examples]

e453. Creating a ZIP File

    // These are the files to include in the ZIP file
    String[] filenames = new String[]{"filename1", "filename2"};
    
    // Create a buffer for reading the files
    byte[] buf = new byte[1024];
    
    try {
        // Create the ZIP file
        String outFilename = "outfile.zip";
        ZipOutputStream out = new ZipOutputStream(new FileOutputStream(outFilename));
    
        // Compress the files
        for (int i=0; i<filenames.length; i++) {
            FileInputStream in = new FileInputStream(filenames[i]);
    
            // Add ZIP entry to output stream.
            out.putNextEntry(new ZipEntry(filenames[i]));
    
            // Transfer bytes from the file to the ZIP file
            int len;
            while ((len = in.read(buf)) > 0) {
                out.write(buf, 0, len);
            }
    
            // Complete the entry
            out.closeEntry();
            in.close();
        }
    
        // Complete the ZIP file
        out.close();
    } catch (IOException e) {
    }

 Related Examples
e454. Listing the Contents of a ZIP File
e455. Retrieving a Compressed File from a ZIP File

See also: Checksums    GZIP   


© 2002 Addison-Wesley.