javase-常用三种遍历方法

 import java.util.ArrayList;

 import java.util.Iterator;

 import java.util.List;

 public class Bianli {

     public static void main(String[] args) {

         List<String> list = new ArrayList<String>();

         list.add("add");

         list.add("bdd");

         list.add("cdd");

 //        三种遍历方式 for();for()增强;iterator

         for (int i = 0; i < list.size(); i++) {

             String s = list.get(i);

             System.out.println(s);

         }

         for (String string : list) {

             System.out.println(string);

         }

         Iterator<String> iterator = list.iterator();

         while(iterator.hasNext()){

             System.out.println(iterator.next());

         }

     }

 }