Vector add Vector, can't get back the value

Question

import java.util.*;
public class TestingMain {
public static void main(String[] args) {
Vector v1 = new Vector();
Vector v2= new Vector();
v2.addElement("HH");
v2.addElement("JJ");
v1.addElement(v1);
for(int i=0; i<v1.size(); i++ ){
for(int j=0; j<v2.size(); j++){
System.out.println(((Vector)v1.elementAt(i)).elementAt(j).toString());
After compilation (using 1.4.2_04 [Eclipse 3.0M9]), I got the following message...
[(this Collection)]java.lang.ArrayIndexOutOfBoundsException: 1 >= 1
     at java.util.Vector.elementAt(Unknown Source)
     at TestingMain.main(TestingMain.java:27)
Exception in thread "main"
What I got wrong about my code?

Answer 1

Sorry, I post wrong about the code, my corrected version
import java.util.*;
public class TestingMain {
public static void main(String[] args) {
Vector v1 = new Vector();
Vector v2= new Vector();
v2.addElement("HH");
v2.addElement("JJ");
v1.addElement(v2);
for(int i=0; i<v1.size(); i++ ){
for(int j=0; j<v2.size(); j++){
System.out.println(((Vector)v1.elementAt(i)).elementAt(j).toString());
After compilation (using 1.4.2_04 [Eclipse 3.0M9]), I got the following message...
[(this Collection)]java.lang.ArrayIndexOutOfBoundsException: 1 >= 1
     at java.util.Vector.elementAt(Unknown Source)
     at TestingMain.main(TestingMain.java:27)
Exception in thread "main"
What I got wrong about my code?