Java.util.ResourceBundle.keySet() Method



The java.util.ResourceBundle.setParent(ResourceBundle parent) method sets the parent bundle of this bundle. The parent bundle is searched by getObject when this bundle does not contain a particular resource.


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

protected void setParent(ResourceBundle parent)


  • parent -- this bundle's parent bundle.

Return Value

This method does not return a value.


  • NA


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

package com.tutorialspoint;

import java.util.Enumeration;
import java.util.Locale;
import java.util.ResourceBundle;
import java.util.StringTokenizer;

public class ResourceBundleDemo extends ResourceBundle {

   public Object handleGetObject(String key) {
   if (key.equals("hello")) {
   return "Hello World!";
   } else {
   return null;

   public Enumeration getKeys() {
   StringTokenizer key = new StringTokenizer("Hello World!");
   return key;

   protected void setParent(ResourceBundle parent) {

   public static void main(String[] args) {

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

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


Assuming we have a resource file 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!