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The way to initialize a List and Map object and add values is as follows:
List<String> sList = new ArrayList<String>(); sList.add("str1"); sList.add("str2");
Map<String,String> sMap = new HashMap<String, String>(); sMap.put("k1", "v1"); sMap.put("k2", "v2");
This operation can also be implemented with the following code, which can make the code look like Neater:
List<String> sList = Arrays.asList("str1", "str2");//这种方法生成的list,是不支持添加或删除元素的
private Map<Integer, String> newsEventMap = new HashMap<Integer, String>(){{ put("k1","v1"); put("k2","v2"); }};
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