What is the use of Enumerations in Hashtables or maps?

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I was Looking for some examples of Hashtables on Stack Overflow, and found this:

Enumeration enumeration = companies.elements();

  while (enumeration.hasMoreElements()) {
  System.out.println("hashtable values: "+enumeration.nextElement());
  }

Why do we use Enumerations and specifically in Hashtables what is its significance?

asked 28 secs ago

Manik Singh

1

What is the use of Enumerations in Hashtables or maps?