Locale getDisplayLanguage(Locale) Method in Java with Examples

The getDisplayLanguage(Locale inLoc) method of Locale class in Java is used to get the language name for the specified locale. If at all it is possible, the name returned will be localized according to inLocale.

Syntax:

public String getDisplayLanguage(Locale inLoc)

Parameters: This method takes one parameter inLoc of Locale type which refers to the localized display of the name.

Return Value: This method returns the name of the display language appropriate to the given locale.

Exceptions: The method throws NullPointerException if the parameter inLoc is null.

Below programs illustrate the working of getDisplayLanguage() method:
Program 1:

// Java code to illustrate getDisplayLanguage() method

import java.util.*;

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

        // Creating a new locale
        Locale first_locale
            = new Locale("en", "US");

        // Displaying first locale
        System.out.println("First Locale: "
                           + first_locale);

        // Displaying the language of this locale
        System.out.println("Language: "
                           + first_locale
                                 .getDisplayLanguage(
                                     new Locale("fr", "FR")));
    }
}

Output:

First Locale: en_US
Language: anglais

Program 2:

// Java code to illustrate getDisplayLanguage() method

import java.util.*;

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

        // Creating a new locale
        Locale first_locale
            = new Locale("en", "US");

        // Displaying first locale
        System.out.println("First Locale: "
                           + first_locale);

        // Displaying the language of this locale
        System.out.println("Language: "
                           + first_locale
                                 .getDisplayLanguage(
                                     new Locale("", "FR")));
    }
}

Output:

First Locale: en_US
Language: English