How to Set the Default Locale in a JVM?

How to Establish a Default Locale in the JVM

Envision a scenario where the objective is to assign a specific default locale to a JVM instance. In this case, the desired locale is fr_CA. Several methodologies exist to facilitate this process.

One approach involves utilizing the Locale.setDefault() method. However, there are alternative routes as well. The JVM allows for customization of the default locale through command-line parameters.

Option 1: Command-Line Parameters

The following syntax can be utilized to set the default locale via command-line parameters:

java -Duser.country=CA -Duser.language=fr ... com.x.Main

In this example, the -Duser.country=CA parameter specifies the country code as Canada, while the -Duser.language=fr parameter designates French as the language.

Option 2: Locale.setDefault() Method

Alternatively, the Locale.setDefault() method can be employed to establish the JVM's default locale:

Locale.setDefault(locale);

where locale represents the desired locale (e.g., new Locale("fr", "CA")).

Additional Resources

For further insights on internationalization and locale in the Java platform, consult the following resource:

• [Internationalization: Understanding Locale in the Java Platform - Using Locale](https://docs.oracle.com/javase/tutorial/i18n/locale/usingLocale.html)

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