class G5 {
  public static void main( String[] args ){
    java.util.ArrayList<String> sList = new java.util.ArrayList<String>();
    sList.add("Cool stuff");

    java.util.Iterator<String> it1 = sList.iterator();
    while( it1.hasNext() ){
       String s = it1.next();
       System.out.println(s);
    }

    for( java.util.Iterator<String> it2 = sList.iterator(); it2.hasNext(); ){
       String s = it2.next();
       System.out.println(s);
    }

    for( String s: sList ){
       System.out.println(s);
    }
  }
}