Java.util.ResourceBundle.clearCache() Method

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Description

The java.util.ResourceBundle.clearCache(ClassLoader loader) method removes all resource bundles from the cache that have been loaded using the given class loader.

Declaration

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

public static final void clearCache(ClassLoader loader)

Parameters

loader − the class loader

Return Value

This method does not return a value.

Exception

NullPointerException − if loader is null

Example

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

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"));

      // clear the cache by using system classloader
      ClassLoader cl = ClassLoader.getSystemClassLoader();
      System.out.println("Clearing Cache...");
      ResourceBundle.clearCache(cl);
      System.out.println("Cache Cleared.");
   }
}

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!
Clearing Cache...
Cache Cleared.