摘要: public static void printColl(ArrayList<?> al){ Iterator<?> it = al.iterator(); while(it.hasNext()) { System.out.println(it.next().toString()); }?和T都表示 阅读全文
posted @ 2016-07-24 18:42 Vcanccc 阅读(82913) 评论(6) 推荐(6) 编辑