El método useLocale() de la clase java.util.Scanner establece la configuración regional de este escáner en la configuración regional especificada.
Sintaxis:
public Scanner useLocale(Locale locale)
Parámetros: la función acepta una configuración regional de parámetro obligatorio que especifica una string que indica la configuración regional que se utilizará.
Valor de retorno: la función devuelve este escáner modificado .
Excepciones: si la base es menor que Character.MIN_RADIX o mayor que Character.MAX_RADIX , se genera una IllegalArgumentException .
Los siguientes programas ilustran la función anterior:
Programa 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();
}
}
Producción:
Scanner String: Geeksforgeeks has Scanner Class Methods Current Lcoale: en_US Changing Locale to ENGLISH Updated Locale: en
Programa 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();
}
}
Producción:
Scanner String: Geeksforgeeks 2018 Current Lcoale: en_US Changing Locale to FRENCH Updated Locale: fr
Referencia: https://docs.oracle.com/javase/7/docs/api/java/util/Scanner.html#useLocale(java.util.Locale)