怎样把一个HashMap里的元素放在一个数组里?
Amani 2002-01-28 08:10:08 HashMap user = new HashMap();
user.put("1","1");
user.put("2","2");
Set userset = user.keySet();
Object[] kk = userset.toArray();
out.print(kk.toString());
结果显示出来是 [Ljava.lang.Object;@1b3d4
toArray()方法是这样用的吗?