有没有一种方法可以初始化SortedMap< Integer，String>.与Java中已经包含的值? [英] Is there a way to initialize a SortedMap<Integer, String> with values already included in Java?

问题描述

我想做类似的事情

SortedMap<Integer, String> stuff = new TreeMap<Integer, String>({1:"a",2:"b"});

就像您在python中一样，但是在Java中是可能的，还是两次调用.put()的唯一方法?

much like you would do in python but is that possible in Java, or is the only way to call .put() twice?

推荐答案

从Java 9开始，您可以这样做:

Starting Java 9, you could do:

SortedMap<Integer, String> stuff = new TreeMap<>(Map.of(1, "a", 2, "b"));

Javadoc链接:

Javadoc links:

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