Java ResourceBundle getString() Method

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Description

The Java ResourceBundle getString(String key) method gets a string for the given key from this resource bundle or one of its parents.

Declaration

Following is the declaration for java.util.ResourceBundle.getString() method

public final String getString(String key)

Parameters

key − the key for the desired string

Return Value

This method returns the string for the given key

Exception

• NullPointerException − if key is null

• MissingResourceException − if no object for the given key can be found

• ClassCastException − if the object found for the given key is not a string

Getting a Value as a String for a Key from a Properties File of US Locale

The following example shows the usage of Java ResourceBundle getString() method to get the object based on key. We've created a resource bundle of US Locale for the corresponding hello_en_US.properties file. Then we retrieved the text assigned to key hello using getString() and printed it.

package com.tutorialspoint;

import java.util.Locale;
import java.util.ResourceBundle;

public class ResourceBundleDemo {
   public static void main(String[] args) {

      // create a new ResourceBundle with specified locale
      ResourceBundle bundle = ResourceBundle.getBundle("hello", Locale.US);

      // print the text assigned to key "hello"
      System.out.println(bundle.getString("hello"));
   }
}

Output

Assuming we have a resource file hello_en_US.properties available in your CLASSPATH, with the following content. This file will be used as an input for our example program −

hello = Hello World!

Let us compile and run the above program, this will produce the following result −

Hello World!

Getting a Value as a String for a Key from a Properties File of FRANCE Locale

The following example shows the usage of Java ResourceBundle getString() method to get the object based on key. We've created a resource bundle of French Locale for the corresponding hello_fr_FR.properties file. Then we retrieved the text assigned to key hello using getString() and printed it.

package com.tutorialspoint;

import java.util.Locale;
import java.util.ResourceBundle;

public class ResourceBundleDemo {
   public static void main(String[] args) {

      // create a new ResourceBundle with specified locale
      ResourceBundle bundle = ResourceBundle.getBundle("hello", Locale.FRANCE);

      // print the text assigned to key "hello"
      System.out.println(bundle.getString("hello"));
   }
}

Output

Assuming we have a resource file hello_fr_FR.properties available in your CLASSPATH, with the following content. This file will be used as an input for our example program −

hello = Bonjour le monde!

Let us compile and run the above program, this will produce the following result −

Bonjour le monde!

Getting a Value as a String for a Key from a Properties File of GERMANY Locale

The following example shows the usage of Java ResourceBundle getString() method to get the object based on key. We've created a resource bundle of German Locale for the corresponding hello_de_DE.properties file. Then we retrieved the text assigned to key hello using getString() and printed it.

package com.tutorialspoint;

import java.util.Locale;
import java.util.ResourceBundle;

public class ResourceBundleDemo {
   public static void main(String[] args) {

      // create a new ResourceBundle with specified locale
      ResourceBundle bundle = ResourceBundle.getBundle("hello", Locale.GERMANY);

      // print the text assigned to key "hello"
      System.out.println(bundle.getString("hello"));
   }
}

Output

Assuming we have a resource file hello_de_DE.properties available in your CLASSPATH, with the following content. This file will be used as an input for our example program −

hello = Hallo Welt!

Let us compile and run the above program, this will produce the following result −

Hallo Welt!