Issue with unpack archive

Question

Hi all,
I wrote class that unpack zip archive, but it took so much time.
I needed to unpack archive more faster.
Could someone help me?

Answer 1

try {
          final ZipInputStream zis = new ZipInputStream(new BufferedInputStream(new FileInputStream(archive)));
          try {
          ZipEntry ze;
          while ((ze = zis.getNextEntry()) != null) {
          final String filename = ze.getName();
          final File f = new File(dir, filename);
          if (ze.isDirectory()) {
          if (!f.exists()) {
          f.mkdirs();
          } else {
          if (f.getParent() != null) {
          final File parent = new File(f.getParent());
          if (!parent.exists()) {
          parent.mkdirs();
          int count;
          final byte data[] = new byte[2048];
          BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(f), 2048);
          try {
          while ((count = zis.read(data, 0, 2048)) != -1) {
          out.write(data, 0, count);
          } finally {
          out.flush();
          out.close();
          zis.closeEntry();
          } finally {
          zis.close();
          } catch (Exception e) {
e.printStackTrace();
its my code.
There are a lot of files...