Java中定义Map常量,List常量

时间:2023-03-09 09:34:50
Java中定义Map常量,List常量

一般的方式的使用静态代码块。比如:

public final static Map map = new HashMap();
static {
map.put("key1", "value1");
map.put("key2", "value2");
}

  

下面为一种简单定义Map常量的方式

public final static Map<String, Fragment> NAV_ITEM_ADPTER = new HashMap<String, Fragment>() {
{
put("拍录传", new CameraFragment());
put("集群对讲", new GroupTalkFragment());
put("视通", new VideoCallFragment());
put("位置", new PositionFragment());
put("浏览", new BrowseFragment());
put("消息", new MsgFragment());
put("群组", new GroupFragment());
put("设置", null);
put("退出", null);
}
};

  

List的话则可以这样定义:

public final static List<String> LIST = Arrays.asList("one","two","three");