Locale getISO3Country() in Java

getISO3Country(): This method is available in java.util.Locale class of Java.

Syntax:

String java.util.Locale.getISO3Country() throws MissingResourceException

This method returns a three-letter abbreviation for this locale's country. If the country matches an ISO 3166-1 alpha-2 code, the corresponding ISO 3166-1 alpha-3 uppercase code is returned.

Note: If the locale doesn't specify a country, this will be the empty string.

Returns: A three-letter abbreviation of this locale's country.

Throws: MissingResourceException - if the three-letter country abbreviation is not available for this locale.

For Example:

Locale locale = new Locale("en", "IN")

locale.getISO3Country() = > It returns IND.

Approach 1: When 3-letter code is found.

Java

import java.util.Locale;

public class LocalegetISO3Country {
    public static void main(String[] args) {

        Locale locale = new Locale("en", "IN");
        System.out.println(locale.getISO3Country());
    }
}

Output:

IND

Approach 2: When 3 -letter code is not found.

Java

import java.util.Locale;

public class LocalegetISO3Country {
    public static void main(String[] args) {

        Locale locale = new Locale("en", "USA");
        System.out.println(locale.getISO3Country());
    }
}

Output:

Exception in thread "main" java.util.MissingResourceException: 
  Couldn't find 3-letter country code for USA
	at java.base/java.util.Locale.getISO3Country(Locale.java:1774)