The useLocale() method of java.util.Scanner class sets this scanner’s locale to the specified locale.
Syntax:
public Scanner useLocale(Locale locale)
Parameters: The function accepts a mandatory parameter locale which specifies a string specifying the locale to use.
Return Value: The function returns this modified scanner.
Exceptions: If the radix is less than Character.MIN_RADIX or greater than Character.MAX_RADIX, then an IllegalArgumentException is thrown.
Below programs illustrate the above function:
Program 1:
// Java program to illustrate the// Scanner useLocale() method in Java  import java.util.*;  public class GFG1 {    public static void main(String[] argv)        throws Exception    {          String s = "Geeksforgeeks has Scanner Class Methods";          // create a new scanner        // with the specified String Object        Scanner scanner = new Scanner(s);          // print a line of the scanner        System.out.println("Scanner String: \n"                           + scanner.nextLine());          // display the previous locale        System.out.println("Current Lcoale: "                           + scanner.locale());          // change the locale of the scanner        scanner.useLocale(Locale.ENGLISH);        System.out.println("Changing Locale to ENGLISH");          // display the new locale        System.out.println("Updated Locale: "                           + scanner.locale());          // close the scanner        scanner.close();    }} |
Output:
Scanner String: Geeksforgeeks has Scanner Class Methods Current Lcoale: en_US Changing Locale to ENGLISH Updated Locale: en
Program 2:
// Java program to illustrate the// Scanner useLocale() method in Java  import java.util.*;  public class GFG1 {    public static void main(String[] argv)        throws Exception    {          String s = "Geeksforgeeks 2018";          // create a new scanner        // with the specified String Object        Scanner scanner = new Scanner(s);          // print a line of the scanner        System.out.println("Scanner String: \n"                           + scanner.nextLine());          // display the previous locale        System.out.println("Current Lcoale: "                           + scanner.locale());          // change the locale of the scanner        scanner.useLocale(Locale.FRENCH);        System.out.println("Changing Locale to FRENCH");          // display the new locale        System.out.println("Updated Locale: "                           + scanner.locale());          // close the scanner        scanner.close();    }} |
Output:
Scanner String: Geeksforgeeks 2018 Current Lcoale: en_US Changing Locale to FRENCH Updated Locale: fr
Reference: https://docs.oracle.com/javase/7/docs/api/java/util/Scanner.html#useLocale(java.util.Locale)
