具有多个键和值的Hashmap？

Question

我想创建一个如下所示的HashMap:

{LOCATION =[China,Sydney, New York,...], NAME = [Bob Smith, Martha Stewart, Amanda Holmes,....], ORGANIZATION = [Matrix Inc, Paragon Pharmaceuticals, Wills Corp.,...]}

我有多个值的多个键.什么是最好的方法呢？

Answer 1

你需要的是一个 Map<String, List<String>>

例:

Map<String, List<String>> myMap = new HashMap<>();

myMap.put("Location", Arrays.asList("a", "b", "c"));
myMap.put("Name", Arrays.asList("b", "mar", "ama"));
myMap.put("Org", Arrays.asList("ma", "par", "wil"));

System.out.println(myMap);

输出:

{Org = [ma,par,wil],Location = [a,b,c],Name = [b,mar,ama]}