public void unZipDecompress(String zipFile, String outputFolder, String fileSel) {
...
String fileEntry = ze.getName();
String fileName = fileEntry;
// Don't create sub folder(s) when file(s) selection
if (fileSel!="" && fileName.contains("/")) fileName = fileName.substring(fileName.lastIndexOf("/")+1);
File newFile = new File(outputFolder + File.separator + fileName);
new File(newFile.getParent()).mkdirs();
if (!fileEntry.endsWith("/") && fileEntry.contains(fileSel)) {
...