RE: HashMap Troubles

["Kevin Leeds" <kleeds@learn.net>]

Yes, Hashtable.get(String) returns an Object
which you can cast back to its original Class.

map.put("name","Deron");
System.out.println((String)map.get("name"));

If the hashtable has different types of objects
in it you can check it like this

  Object o = map.get("name");
  if (o instanceof String)
     System.out.println((String)o);

or

  try
  {
    System.out.println((String)o);
  }
  catch (ClassCastException x)
  {
  }

Similar tactics work with Vector elements.
(I dunno what an ArrayList is but it's probably
the same deal)


-----Original Message-----
From: Deron Pardue [mailto:dpardue@dspin.com]
Sent: Monday, September 10, 2001 4:55 PM
To: ajug-members@www.ajug.org
Subject: Re: HashMap Troubles


Hey.  I'm not in a position to test this, but try the following:

System.out.println(map.get("name").toString());

the get() method returns an Object, not a String.  I've had a similar
problem recently with Vectors and ArrayLists.