ArrayList<HashMap<String, String>> menuItems = new ArrayList<HashMap<String, String>>();Element e = (Element) nl.item(i);
map.put, parser.getValue(e, KE
我有Map<Date, String。我有两个日期对象a, b是相等的。我将一个字符串值放到与键a相关联的映射中。然后,我尝试获取与键a和b相关联的映射值,但只有a返回我放置的值。public class Main {
Map<Date, String> map = new HashMap<Date, String>();
Date b = ne