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Java 从地图上获取列表?_Java - Fatal编程技术网

Java 从地图上获取列表?

Java 从地图上获取列表?,java,Java,如何获取列表的哈希映射?比如: Map<String, Horse> horses = new HashMap<String, Horse>(); ArrayList<Horse> = horses.toArray(); Map horses=newhashmap(); ArrayList=horses.toArray(); ? 谢谢List horsesAsList=newarraylist(horses.values()); List=newarra

如何获取列表的哈希映射?比如:

Map<String, Horse> horses = new HashMap<String, Horse>();

ArrayList<Horse> = horses.toArray();
Map horses=newhashmap();
ArrayList=horses.toArray();
?

谢谢

List horsesAsList=newarraylist(horses.values());
List=newarraylist(horses.values());

horses.values()
返回一个
集合
,如果这也可以,您可以跳过创建
数组列表

要清楚,您只需要值而不需要键,对吗?
List<Horse> horsesAsList = new ArrayList<Horse>(horses.values());
List<Horses> = new ArrayList<Horses>(horses.values());