import java.util.Collections;
    import java.util.Vector;
    public class Main {
    	public static void main(String[] args) {
    		Vector<String> v = new Vector();
    		v.add("1");
    		v.add("2");
    		v.add("3");
    		v.add("4");
    		v.add("5");
    		System.out.println(v);
    		Collections.swap(v, 0, 4);
    		System.out.println("After swapping");
    		System.out.println(v);
    	}
    }