code: protected static void extractFile(ZipInputStream zipIn, String filePath) throws IOException {
  		BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(filePath));
  		byte[] bytesIn = new byte[BUFFER_SIZE];
  		int read = 0;
  		while ((read = zipIn.read(bytesIn)) != -1) {
  			bos.write(bytesIn, 0, read);
  		}
  		bos.close();
  	}
docs: Extracts a zip entry (file entry)
  
  @param zipIn
  @param filePath
  @throws IOException