What to do in I/O and File ?

18 June 2011

How to unzip a .zip file ?

public static void unzip(String filePath, InputStream is) {
  ZipInputStream in = null;
  try {
    in = new ZipInputStream(is);
    for (ZipEntry entry = in.getNextEntry(); entry != null; entry = in.getNextEntry()) {
      if (entry.isDirectory()) {
        File file1 = new File(filePath + entry.getName());
        file1.mkdir();
      } else {
        FileOutputStream outputfile = new FileOutputStream(filePath + entry.getName());
        int data = 0;
        while ((data = in.read()) != -1) {
          outputfile.write( data );
        }
        outputfile.close();
      }
    }
  } catch (IOException e) {
  } finally {
    try {
      if (in != null) {
        in.close();
      }
    } catch (IOException ignored) {
    }
    in = null;
  }
}