Java tutorial
import java.util.*; class MyResources extends ListResourceBundle { protected Object[][] getContents() { return new Object[][] { { "hello", "from java2s.com" }, { "client", "HTML" }, { "server", "PHP" } }; } } public class Main { public static void main(String[] args) { MyResources mr = new MyResources(); // get the keys Enumeration<String> enumeration = mr.getKeys(); // print the keys while (enumeration.hasMoreElements()) { System.out.println(enumeration.nextElement()); } } }