【Java】List的三种遍历方法

public void List_Test(){
        List<String>list = new ArrayList<String>();
        for(int i = 0;i < 10;i++){
            list.add("Hey" + i);
        }

        //1.
        for(String tmp:list){
            System.out.println(tmp);
        }
        
        //2.
        for(int i = 0;i < list.size();i++){
            list.get(i);
        }
        
        //3.
        Iterator<String>iter = list.iterator();
        while(iter.hasNext()){
            iter.next();
        }
    }