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

public class HelloResourceBundle extends ResourceBundle {

  private String keys = "Hello Goodbye";

    public Object handleGetObject(String key) {
      if (key.equals("Hello")) return "Hello";
      if (key.equals("Goodbye")) return "Goodbye";

      return null;
    }

    public Enumeration getKeys() {
      StringTokenizer keyTokenizer = new StringTokenizer(keys);

      return keyTokenizer;
    }
}