How to zip a directory in java

This is a sample method To zip a directory in java :



public static boolean zipDirectory(File directory) {
        ZipOutputStream out = null;
        BufferedInputStream in = null;
        try {
            File zippedDirectory = new File(directory.getParent()
                    + File.separatorChar + directory.getName() + ".zip");
            out = new ZipOutputStream(new BufferedOutputStream(
                    new FileOutputStream(zippedDirectory)));
            byte[] data = new byte[1000];
            String files[] = directory.list();
            for (int i = 0; i < files.length; i++) {
                final FileInputStream fileInputStream = new FileInputStream(directory
                        .getPath()
                        + File.separatorChar + files[i]);
                in = new BufferedInputStream(fileInputStream, 1000);
                out.putNextEntry(new ZipEntry(files[i]));
                int count;
                while ((count = in.read(data, 0, 1000)) != -1) {
                    out.write(data, 0, count);
                }
                out.closeEntry();
                fileInputStream.close();
            }
            return true;
        } catch (Exception ex) {
            ex.printStackTrace();
            return false;
        } finally {
            try {
                in.close();
                out.flush();
                out.close();
            } catch (Exception ex) {
                ex.printStackTrace();
            }
        }
    }