🚀 go-pugleaf

On 6 Nov 1998 11:42:34 GMT, "Vishal P Mahabeer" <vishalm@spl.co.za>
wrote:

>Supposing I have a Hashtable with key values of type String and value
>values of type CustomFrame (I defined this class).  Consider the following
>method:
>
>public CustomFrame getValue(String key) {
>	return this.hashTable.get(key);  
>}
>
>This will not work because the method 'get(key)' returns an object of type
>Object and not CustomFrame.  I need the CustomFrame object so that I can
>invoke methods on it.

Use a cast:

  return (CustomFrame)this.hashTable.get(key);

This does two things: It tells the compiler to treat the result of
this.hashTable.get(key) as a CustomFrame, and it also causes the
insertion of some type-checking code that will raise an exception if
this.hashTable.get(key) returns something that isn't compatible with
CustomFrame.

-Steve