Is there an open source java enum of ISO 3166-1 country codes

Question

Does anyone know of a freely available java 1.5 package that provides a list of ISO 3166-1 country codes as a enum or EnumMap? Specifically I need the \"ISO 3166-1-alpha-2

Answer 1

If you are already going to rely on Java locale, then I suggest using a simple HashMap instead of creating new classes for countries etc.

Here's how I would use it if I were to rely on the Java Localization only:

private HashMap<String, String> countries = new HashMap<String, String>();
String[] countryCodes = Locale.getISOCountries();

for (String cc : countryCodes) {
    // country name , country code map
    countries.put(new Locale("", cc).getDisplayCountry(), cc.toUpperCase());
}

After you fill the map, you can get the ISO code from the country name whenever you need it. Or you can make it a ISO code to Country name map as well, just modify the 'put' method accordingly.

Answer 2

Now an implementation of country code (ISO 3166-1 alpha-2/alpha-3/numeric) list as Java enum is available at GitHub under Apache License version 2.0.

Example:

CountryCode cc = CountryCode.getByCode("JP");

System.out.println("Country name = " + cc.getName());                // "Japan"
System.out.println("ISO 3166-1 alpha-2 code = " + cc.getAlpha2());   // "JP"
System.out.println("ISO 3166-1 alpha-3 code = " + cc.getAlpha3());   // "JPN"
System.out.println("ISO 3166-1 numeric code = " + cc.getNumeric());  // 392

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Last Edit 2016-Jun-09

CountryCode enum was packaged into com.neovisionaries.i18n with other Java enums, LanguageCode (ISO 639-1), LanguageAlpha3Code (ISO 639-2), LocaleCode, ScriptCode (ISO 15924) and CurrencyCode (ISO 4217) and registered into the Maven Central Repository.

Maven

<dependency>
  <groupId>com.neovisionaries</groupId>
  <artifactId>nv-i18n</artifactId>
  <version>1.22</version>
</dependency>

Gradle

dependencies {
  compile 'com.neovisionaries:nv-i18n:1.22'
}

GitHub

https://github.com/TakahikoKawasaki/nv-i18n

Javadoc

http://takahikokawasaki.github.com/nv-i18n/

OSGi

Bundle-SymbolicName: com.neovisionaries.i18n
Export-Package: com.neovisionaries.i18n;version="1.22.0"

Answer 3

This code gets 242 countries in Sun Java 6:

String[] countryCodes = Locale.getISOCountries();

Though the ISO website claims there are 249 ISO 3166-1-alpha-2 code elements, though the javadoc links to the same information.

Answer 4

Not a java enum, but a JSON version of this is available at http://country.io/names.json

Answer 5

AWS Java SDK has CountryCode.