Java tutorial
//package com.java2s; /* * Aipo is a groupware program developed by Aimluck,Inc. * Copyright (C) 2004-2011 Aimluck,Inc. * http://www.aipo.com * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * This program 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 Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ public class Main { public static String convertBase64ToIso2022(String str) { if (str == null || str.length() <= 0) { return str; } StringBuffer sb = new StringBuffer("=?ISO-2022-JP?B?"); sb.append(str).append("?="); return sb.toString(); } }