Set与list测试

public class SetTest {

    public static void main(String[] args) {

        Set set = new HashSet();

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

        list.add("123");

        list.add("123");

        set.addAll(list);

        Iterator ite = set.iterator();

        while (ite.hasNext()) {

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

        }

}

}

Set与list测试