如何优雅的统计List集合中元素重复出现次数

List<String> nameLists = Arrays.asList("Lvshen", "Lvshen", "Zhouzhou", "Huamulan", "Huamulan", "Huamulan");

Map<String, Integer> nameMap = Maps.newHashMap();

nameLists.forEach(name -> {
    Integer counts = nameMap.get(name);
    nameMap.put(name, counts == null ? 1 : ++counts);
});
System.out.println(nameMap);

Map<String, Long> nameMap = nameLists.stream().collect(Collectors.groupingBy(p -> p, Collectors.counting()));

select key,count(key) from table group by key;

Map<String, Integer> nameMap = Maps.newHashMap();

nameLists.forEach(name -> nameMap.compute(name, (k, v) -> v == null ? 1 : ++v));

V oldValue = get(key);

V newValue = remappingFunction.apply(key, oldValue);