如何从语言环境中获取国家/地区代码？

Question

I want to get country codes from a list of locale. eg I have inputs: en_US, dua_CM, zh-Hans_MO ... I want to output corresponding country code: US, CM, MO... (I am not sure if country code is the last two characters of locale...)

I tried the following Java code, but it printed out null.

    Locale lc = new Locale("en_US");
    System.out.print(lc.getCountry());

Any suggestions? Thanks in advance!

Dan

Answer 1

Here, you are defining your own Locale , for which you haven't specified a Country value (see the overloaded Locale constructors).

Instead, use

Locale lc = Locale.forLanguageTag("en-US"); // Java 1.7

which will get the Locale object from Java's supported locales .

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