java的迭代器

import java.util.*;

public class CollectionTest{
	public static void main(String[] args){
		Collection c = new ArrayList();
		
		c.add(9.8);
		c.add(3.14);
		c.add("hello");
		
		Iterator it = c.iterator();//获取迭代器对象
		
		//使用while循环进行遍历
		while(it.hasNext()){
			Object element = it.next();
			System.out.println(element);
		}
	}
}