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排序对象 HashMap (非按键)
原标题:Sort Object HashMap (not by key)

因此,我在一个 Hashmap 中有几个对象: 私有 hashmap< string, Object> hmap;

我想做的是通过对象变量( 双倍) 排序此对象。 我该怎么做? 我认为我需要使用比较器, 但我不知道如何使用它们。 我应该将对象发送到数组吗?

最佳回答

我猜你需要在一个单独的列表中进行排序。 您需要类似下面的列表 :

List<Object> values = new ArrayList<Object>();
values.addAll(hmap.values());
Collections.sort( values, new Comparator<Object>(){ 
 public int compare(Object o1,
                   Object o2){
    //do specific comparison here
 });
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