input: Write a function to print the length of a given string. The function should take a string as input and print the length of the string. If the input string is empty, it should print "0".
  assert print_string_length("Python")
  assert print_string_length("Java")
  assert print_string_length("")
output: def print_string_length(s):
      if s == "":
          print("0")
      else:
          print(len(s))