Java tutorial
//package com.java2s; /* * jPOS Project [http://jpos.org] * Copyright (C) 2000-2012 Alejandro P. Revilla * * 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 { /** * pads a string with 'F's (useful for pinoffset management) * @param s an [hex]string * @param len desired length * @return string right padded with 'F's */ public static String strpadf(String s, int len) { StringBuilder d = new StringBuilder(s); while (d.length() < len) d.append('F'); return d.toString(); } }