67,513
社区成员
发帖
与我相关
我的任务
分享
public static void main(String[] args) {
List<String> list = new ArrayList<String>();
list.add("U");
list.add("U");
list.add("a");
list.add("c");
list.add("a");
list.add("u");
Iterator<String> r = list.iterator();
System.out.println("结果是:");
while (r.hasNext()) {
System.out.println(r.next());
}
Set<String> set = new HashSet<String>();
set.addAll(list);
Iterator<String> it = set.iterator();
System.out.println("结果是:");
while (it.hasNext()) {
System.out.println(it.next());
}
}