slot 0: Amy slot 1: Bob slot 0: Zoe slot 1: Bob
 Vector 
A Vector is a linear list of elements,
just like an array.
As with an array
a counting loop can be used to visit each element in
order.
(Note: an alternate method, using an
Enumeration will be discussed later.)
The following is an example:
import java.util.* ;
class VectorEg
{
  public static void main ( String[] args)
  {
    Vector names = new Vector( 10 );
    names.addElement( "Amy" );
    names.addElement( "Bob" );
    names.addElement( "Chris" );
    names.addElement( "Dan" );
    names.addElement( "Elaine" );
    names.addElement( "Fred" );
    for ( int j=0; j < names.__________(); j++ )
      System.out.println( j + ": " + names.__________(j) ); 
  }
}