- Java code
Map<Long, Double> map = new HashMap<Long, Double>().put(11L, 22D);//compile errorMap<Long, Double> map = new HashMap<Long, Double>();map.put(11L, 22D);//correct
提示:
Type mismatch: cannot convert from Double to Map<Long,Double>
怎么识别成Double去了
------解决方案--------------------