A good answer might be:

myVector.size() <= myVector.capacity()

will always be true.

Adding Elements to a Vector

To add an element to the end of a Vector use:

addElement( Object ) ;  // add a reference to an Object to the end of the Vector,
                        // increasing its size by one.  The capacity of the Vector
                        // will increase by increment if needed.

Here is an example program. To use the Vector you must import the java.util package:

import java.util.* ;

class VectorEg
{

  public static void main ( String[] args)
  {
    Vector names = new Vector( 20, 5 );

    System.out.println("capacity: " 
        + names.capacity() );
    System.out.println("size: " 
        + names.size() );

    names.addElement("Amy");
    names.addElement("Bob");
    names.addElement("Cindy");

    System.out.println("capacity: " 
        + names.capacity() );
    System.out.println("size: " 
        + names.size() );

  }
}

The initial capacity of the Vector is set to 20 with an increment of 5. References to three String objects are added. (The String objects are constructed by enclosing characters in quote marks.)

As the diagram shows, the added objects are not part of the Vector. The Vector contains an array of references to the objects added to it.

QUESTION 7:

What does the program print out?
capacity:
size:

capacity:
size: