Here you can find the source of truncateToMaxLen(String input, int len)
public static String truncateToMaxLen(String input, int len)
//package com.java2s; /*/*from www .ja v a 2 s. c om*/ * TDMX - Trusted Domain Messaging eXchange * * Enterprise B2B messaging between separate corporations via interoperable cloud service providers. * * Copyright (C) 2014 Peter Klauser (http://tdmx.org) * * 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 truncateToMaxLen(String input, int len) { if (input != null && input.length() > 0) { if (input.length() > len) { return input.substring(0, len); } } return input; } }