Java collection of traversal practice

package cn.tx.coll;
traversing // set of
Import java.util.ArrayList;
Import java.util.Collection;
Import java.util.Iterator;

{class CollectionDemo1 public
public static void main (String [] args) {
// create a collection Collection
Collection new new C = the ArrayList ();
// add objects to the collection
c.add ( "Benz");
c.add ( " Volvo ");
c.add (" BMW ");
c.add (" public ");
c.add (" Audi ");

     han(c);
    }
    //han(自己随便起的名字)
public static void han(Collection c){
    //获得一个集合的迭代器对象,iterator(迭代器)
    Iterator iterator = c.iterator();
    //通过迭代器的对象来遍历集合;hasNext(是否有下一个)
   while (iterator.hasNext()){
       //获得这个元素
       Object o = iterator.next();
       //打印
       System.out.println(o);
        ****//注意:迭代器的对象指针是一去不复返的,只能用一次****
   }

}

}