//import java.util.Vector;

public class VectorUsage {

	public static void main (String[] args) {
		Vector v = new Vector();
		for ( int i = 12; i < 30; i++ ) {
			v.add (String.valueOf(i));
		}	
		System.out.println (v);
		System.out.println (v.size());
		String s = (String) v.get(5);
		System.out.println (s);
		v.remove (5);
		System.out.println (v);
		v.remove (5);
		System.out.println (v);
		
	}

}