Can someone tell me how I can use a Vector to access my class?

Question

I wrote a class that will need to be instantiated with unknown instances later. I decided to use a Vector to do this. However when I created the vector:
<CODE>
Vector user = new Vector(1,1);
user.addElement(Users());
user.elementAt(0).name="Test";
</CODE>
I'm really not sure how I can set this. The class is of course Users and I want to set user as the Vector but specify Users as the Object Type. Any help? By the way I heard Java has a dynamic array feature is this true? I heard you had to use Vectors for Java. Also how can I free up the memory when I'm done with the class?

Answer 1

Suppose class User looks like this:
public class User
  public String name;
}then you could do:Vector users = new Vector(1,1);
users.addElement(new User());
((User)users.elementAt(0)).name="Test";BTW - Java is NOT C++, you always need to use the new keyword for object creation!