import java.util.*;

public class Q1 {

  public static void main(String[] args) {
    Vector v = new Vector(3);
    v.addElement("a");
    v.addElement("b");
    v.insertElementAt("c", 1);
    v.addElement("d");
    v.removeElementAt(2);
    // The capacity() method returns the size of the underlying array.
    System.out.println("Size of array: " + v.capacity());
    for (int i = 0; i < v.capacity(); i++) {
      // It is illegal to access an element of the Vector at an index
      // greater than or equal to its size, regardless of its capacity.
      if (i < v.size()) {
	System.out.println("" + i + ": " + v.elementAt(i));
      } else {
	System.out.println("" + i + ": ");
      }
    }
    return;
  }

}