Java中定義Map常量，List常量

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

下面為一種簡單定義Map常量的方式

public final static Map<String, Fragment> NAV_ITEM_ADPTER = new HashMap<String, Fragment>() {
    {
        put("拍錄傳", new CameraFragment());
        put("集群對講", new GroupTalkFragment());
        put("視通", new VideoCallFragment());
        put("位置", new PositionFragment());
        put("瀏覽", new BrowseFragment());
        put("消息", new MsgFragment());
        put("群組", new GroupFragment());
        put("設置", null);
        put("退出", null);
    }
};

List的話則可以這樣定義：

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