How Can I Set the Default Locale in the JVM?

Setting the Default Locale in the JVM

Locale settings in the Java Virtual Machine (JVM) determine the default language, currency, and other regional preferences used by programs. Understanding how to set the default locale is crucial for internationalizing applications.

Options for Setting Default Locale

The inquiry presents the option of using Locale.setDefault(). While this method is valid, there are additional approaches to consider:

1. Command-Line Parameters:

JVM parameters can be used to set the default locale on the command line:

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

This method overrides any locale settings set within the program code.

2. System Properties:

System properties can also be used to set the default locale:

System.setProperty("user.country", "CA");
System.setProperty("user.language", "fr");

This approach is similar to the command-line parameters but can be set programmatically.

Further Resources:

For more detailed information on locale settings in Java, refer to 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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