Iterator遍歷的兩種方式

public class Arraylist {
	public static void main(String[] args) {
		List arr = new ArrayList();
		arr.add("aaa");
		arr.add("bbb");
		arr.add("ccc");
		arr.add("ddd");
		arr.add("eee");

	Iterator it = arr.iterator();
		while(it.hasNext()){
			String str = (String) it.next();
			System.out.println(str);
		}
		System.out.println("--------");

	Iterator iterator = arr.iterator();
		while(iterator.hasNext()){
			Object obj1 = iterator.next();
			System.out.println(obj1+"啦啦啦");
		}
		System.out.println("--------");
	}
}