Java.util.ResourceBundle.containsKey() Method

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Description

The java.util.ResourceBundle.getBundle(String baseName) method gets a resource bundle using the specified base name, the default locale, and the caller's class loader.

Declaration

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

public static final ResourceBundle getBundle(String baseName)

Parameters

  • baseName -- the base name of the resource bundle, a fully qualified class name

Return Value

This method returns a resource bundle for the given base name and the default locale

Exception

  • NullPointerException -- if baseName is null

  • MissingResourceException -- if no resource bundle for the specified base name can be found

Example

The following example shows the usage of java.util.ResourceBundle.getBundle() method.

package com.tutorialspoint;

import java.util.ResourceBundle;

public class ResourceBundleDemo {

   public static void main(String[] args) {

      // create a new ResourceBundle with default locale
      ResourceBundle bundle =
              ResourceBundle.getBundle("hello");

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

   }
}

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!



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