ArrayList<String>遍历

 public static void main(String[] args) {
 ArrayList<String> list = new ArrayList<String>();
          list.add("集");
          list.add("合");
          list.add("遍");
          list.add("历");
          forTravelse(list);

    // list遍历-迭代器
     iteratorTravelse(list);

}

 

private static void forTravelse(ArrayList<String> list) {
          for (String str : list) {
             System.out.print(str + " ");
          }
          System.out.println();
      }

// 迭代器遍历
      private static void iteratorTravelse(ArrayList<String> list) {
          Iterator<String> it = list.iterator();
          while (it.hasNext()) {
              String next = it.next();
              System.out.print(next + " ");
          }
          System.out.println();
      }