请问一下大家,it.next()为什么会报错呢?

2025-05-13 17:11:06
推荐回答(1个)
回答(1):

要强制转换一下。Map map = new HashMap();
Iterator iter = map.entrySet().iterator();
while (iter.hasNext()) {
Map.Entry entry = (Map.Entry) iter.next();
Object key = entry.getKey();
Object val = entry.getValue();
}