Here you can find the source of getMessage(String key, Object... values)
public static String getMessage(String key, Object... values)
//package com.java2s; /*//w w w .jav a 2 s. c o m * Ejisto, a powerful developer assistant * * Copyright (C) 2010-2013 Celestino Bellone * * Ejisto is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Ejisto is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ import java.text.MessageFormat; import java.util.ResourceBundle; public class Main { private static final ResourceBundle MESSAGES = ResourceBundle.getBundle("messages"); public static String getMessage(String key, Object... values) { if (!MESSAGES.containsKey(key)) { return key; } String value = MESSAGES.getString(key); return MessageFormat.format(value, values); } }