code: public static boolean createNewFile(File targetFile) {
          if (targetFile.exists()) delFileOrFolder(targetFile);
          try {
              return targetFile.createNewFile();
          } catch (IOException e) {
              return false;
          }
      }
docs: Create a new file, if the file exists, delete and create again.
  
  @param targetFile file.
  
  @return True: success, or false: failure.