Identifiers are names of Variabls, Objects, Labels, Subroutines or Constants and must meet these requirements:

  1. The first letter must be a character
  2. Minimum lenght is 1 character
  3. It may be made up of characters, numbers and the Undeline („_“.
  4. Special characters and umlaut except the underline are not permitted

Examples of legal Identifiers:

  • a
  • Horst
  • MySubRoutine
  • hello123
  • m1_var