Finding Vector

package example.vector;
 
import java.util.Vector;
 
public class FindVector2 {
    static String members[] =
	    { "Ralph", "Waldo", "Emerson", "Henry", "David", "Thoreau", "Walden", "Pond", "Thoreau", "Institute" };
 
    public static void main(String args[]) {
	Vector v = new Vector();
	for (int i = 0, n = members.length; i < n; i++) {
	    v.add(members[i]);
	}
	System.out.println(v);
	System.out.println("Contains Society?: " + v.contains("Society"));
	System.out.println("Contains Waldo?: " + v.contains("Waldo"));
	System.out.println("Where's Waldo?: " + v.indexOf("Waldo"));
	System.out.println("Where's Thoreau?: " + v.indexOf("Thoreau"));
	System.out.println("Where's Thoreau from end?: " + v.lastIndexOf("Thoreau"));
	int index = 0;
	int length = v.size();
	while ((index < length) && (index >= 0)) {
	    index = v.indexOf("Thoreau", index);
	    if (index != -1) {
		System.out.println(v.get(index));
		index++;
	    }
	}
    }
}