如何将值/从NestedMap中获取值 [英] How to put/get values into/from Nested HashMap

问题描述

I want to create a nested HashMap that will take two keys of type float and give out value of type Integer.

我想创建一个嵌套的HashMap，它需要两个类型为float的键并给出Integer类型的值。 public static HashMap< Float，HashMap< Float，Integer>> hashX = new HashMap< Float，HashMap< Float，Integer>>（）;

public static HashMap<Float, HashMap<Float, Integer>> hashX = new HashMap<Float,HashMap<Float, Integer>>();

是否有一个像普通HashMap那样的简单方法来获取/获取值：

Is there a simple method of putting/getting the values like an ordinary HashMap i.e.

  hashX.put(key, value);
  hashX.get(key);

或者它是一个更复杂的方法吗？
我在网上搜索了一个解决方案，但是发现很难找到适用于我的解决方案。

or is it a more complicated method that must be used? I have searched around the web for a solution but am finding it tough to find a solution that applies to me. Any help would be appreciated!

推荐答案

Map<Float, Map<Float, Integer>> map = new HashMap<>();

map.put(.0F, new HashMap(){{put(.0F,0);}});
map.put(.1F, new HashMap(){{put(.1F,1);}});

map.get(.0F).get(.0F);

这篇关于如何将值/从NestedMap中获取值的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！