introduction.message=Welcome to the adder program

input.message=The input values are {0} and {1}

result.message=The result is {0}

package adder;

import java.io.IOException;

import java.text.MessageFormat;

import java.util.Properties;

public class Adder {

private Properties properties = new Properties();

public Adder() {

try {

properties.load(getClass().getResourceAsStream(

"/messages.properties"));

System.out.println(properties.getProperty(

"introduction.message"));

} catch (IOException e) {

e.printStackTrace(System.out);

}

}

public void add(int a, int b) {

String inputMessage = properties.getProperty(

"input.message");

String resultMessage = properties.getProperty(

"result.message");

System.out.println(MessageFormat.format(

inputMessage, a, b));

System.out.println(MessageFormat.format(

resultMessage, a + b));

}

public static void main(String[] args) {

Adder adder = new Adder();

adder.add(20, 30);

adder.add(23, 12);

}

}

package adder;

import java.util.Locale;

public class MyLocale {

public static void main(String[] args) {

Locale l = Locale.getDefault();

System.out.println(l.getLanguage());

System.out.println(l.getDisplayCountry());

}

}

package adder;

import java.text.MessageFormat;

import java.util.Locale;

import java.util.ResourceBundle;

public class Adder {

private ResourceBundle resourceBundle;

public Adder() {

resourceBundle = ResourceBundle.getBundle("messages");

System.out.println(resourceBundle.getString(

"introduction.message"));

}

public void add(int a, int b) {

String inputMessage = resourceBundle.getString(

"input.message");

String resultMessage = resourceBundle.getString(

"result.message");

System.out.println(MessageFormat.format(

inputMessage, a, b));

System.out.println(MessageFormat.format(

resultMessage, a + b));

}

public static void main(String[] args) {

Adder adder = new Adder();

adder.add(20, 30);

adder.add(23, 12);

}

}

introduction.message=Bienvenue dans le programme adder

input.message=Les valeurs d'entrée sont {0} et {1}

result.message=Le résultat est {0}

public Adder() {

Locale french = new Locale.Builder()

.setLanguage("fr")

.setRegion("FR").build();

resourceBundle = ResourceBundle.getBundle("messages", french);

package adder;

import java.text.NumberFormat;

import java.util.Locale;

public class Numbers {

public static void main(String[] args) {

NumberFormat nf = NumberFormat.getInstance(Locale.ITALY);

System.out.println(nf.format(999999.99));

nf = NumberFormat.getCurrencyInstance(Locale.ITALY);

System.out.println(nf.format(999999.99));

nf = NumberFormat.getPercentInstance(Locale.ITALY);

System.out.println(nf.format(999999.99));

}

}