Casting Vector befor or after

Question

If I want to insert an object into any collection like vector, shoud I first cast the object into desired type and insert into vector OR inserting the object as it is but
casting it to desired object when getting it from the collection.
Vector v=new Vector();
v.add( (String) "Item1"');
String s=v.get(0);
// or this one
v.add("Item1");
String s=(String)v.get(0);And what does this mean. I m not sure exactly what I saw, but something like the following- which seems a type casting during initialization. Is it possible to cast an object during initilization, if so , how?
Vector<String> v=<String>new Vector();

Answer 1

you have written your code like Vector<String> v=new Vector<String>();
its a vector only store string . before adding element you have to convert into string if it is not.
import java.util.*;
class vec
  public static void main(String args[])
   Vector<String> v=new Vector<String>();
   v.add("asis");
   System.out.println(v.get(0));
}when you want to get the element it will give you a string object.