Here you can find the source of fieldName(String getsetName)
public static String fieldName(String getsetName)
//package com.java2s; /*/* www . j a v a 2s . c o m*/ * Copyright (C) 2003-2009 eXo Platform SAS. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This software 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ public class Main { public static String fieldName(String getsetName) { if (!"get".equals(getsetName.substring(0, 3)) && !"set".equals(getsetName.substring(0, 3))) throw new IllegalArgumentException("Invalid getter or setter name : " + getsetName); return String.format("%s%s", getsetName.substring(3, 4).toLowerCase(), getsetName.substring(4)); } }