Simple collection example

package collect;

import java.util.*;
class testcollect1
{
 public static void main(String args[])
 {
 
  ArrayList<String> al=new ArrayList<String>();//creating arraylist
  al.add("Ajay");//adding object in arraylist
  al.add("Ravi");
  al.add("Sanjay");
  al.add("Vijay");
 
  Iterator<String> itr=al.iterator();//getting Iterator from arraylist to traverse elements
  while(itr.hasNext())
  {
   System.out.println(itr.next());
  }
 }
}