public static void main(String[] args) {

int a = '\uDDE6'; // flag character represent A

// print all available country with flag

for (Locale l : Locale.getAvailableLocales()) {

// UTF-8 flags generated from the two letters country code (US, UK, HU...)

String s = l.getCountry();

if (s.length() == 2) {

// every flag is 4 UTF-8 character: '\uD83C' + modified country code[0] + '\uD83C" + modified country code[1]

String flag = " \uD83C" + (char)(s.toCharArray()[0] - 'A' + a) + '\uD83C' + (char)(s.toCharArray()[1] - 'A' + a);

// print country + flag

System.out.println(l.getDisplayCountry() + ": " + flag);

}

}

}