What do we do with... an empty Vector?

[joebloggs2004]

...
if (people.isEmpty())
{
     // What goes here??
}
else if (people == null) 
{
     Vector people = new Vector();
}
else
{
...

Could anyone tell me what should happen in this file if the Vector is empty. The contents of the Vector are required to form a list (in a JList) but I'm not sure what to do with it. I want the JFrame to display regardless of whether the Vector is empty or not. Suggestions?

[ractoc]

My guess would be that an empty Vector would just display an empty JList

[mikeBarr81]

You should test for null first. If people==null, then the expression people.isEmpty() will throw a NullPointerException.

[Kram]

like mike said, there is really no point to do 2 checks, if you check for null first, then you dont have to worry about the list being empty