Set Date Formats for Different Countries in Java

Firstly, set the locale −

Locale[] strLocales = { US, UK, GERMANY};

Now, let us set the date formats i.e. different constants −

int[] constants = { SHORT, MEDIUM, LONG };
String[] str = { "SHORT", "MEDIUM", "LONG" };

Loop through and get the different date formats for different countries −

for (Locale country : strLocales) {
   System.out.println("\n"+ country.getDisplayCountry() + ".....");
   for (int i = 0; i < constants.length; i++) {
      dateFormat = DateFormat.getDateInstance(constants[i], country);
      System.out.println(str[i] + " constant = " + dateFormat.format(dt));
   }
}

The following is an example

Example

 Live Demo

import static java.text.DateFormat.*;
import static java.util.Locale.*;
import java.text.DateFormat;
import java.util.Date;
import java.util.Locale;
public class Demo {
   public static void main(String[] args) {
      Date dt = new Date();
      Locale[] strLocales = { US, UK, GERMANY};
      int[] constants = { SHORT, MEDIUM, LONG };
      String[] str = { "SHORT", "MEDIUM", "LONG" };
      DateFormat dateFormat = null;
      for (Locale country : strLocales) {
         System.out.println("\n"+ country.getDisplayCountry() + ".....");
         for (int i = 0; i < constants.length; i++) {
            dateFormat = DateFormat.getDateInstance(constants[i], country);
            System.out.println(str[i] + " constant = " + dateFormat.format(dt));
         }
      }
   }
}

Output

United States.....
SHORT constant = 11/22/18
MEDIUM constant = Nov 22, 2018
LONG constant = November 22, 2018

United Kingdom.....
SHORT constant = 22/11/18
MEDIUM constant = 22-Nov-2018
LONG constant = 22 November 2018
Germany.....

SHORT constant = 22.11.18
MEDIUM constant = 22.11.2018
LONG constant = 22. November 2018