ArrayList遍历的4中方法

	 public static void main(String args[]){
	        List<String> list = new ArrayList<String>();
	        list.add("luojiahui");
	        list.add("luojiafeng");

	        //方法1
	        Iterator it1 = list.iterator();
	        while(it1.hasNext()){
	            System.out.println(it1.next()+"1");
	        }

	        //方法2
	        for(Iterator it2 = list.iterator();it2.hasNext();){
	             System.out.println(it2.next()+"2");
	        }

	        //方法3
	        for(String tmp:list){
	            System.out.println(tmp+"3");
	        }

	        //方法4
	        for(int i = 0;i < list.size(); i ++){
	            System.out.println(list.get(i)+"4");
	        }

	    }