Here you can find the source of pluralize(String singularNoun)
public static String pluralize(String singularNoun)
//package com.java2s; /*//from w w w.j a v a 2 s .co m * RHQ Management Platform * Copyright 2010-2011, Red Hat Middleware LLC, and individual contributors * as indicated by the @author tags. See the copyright.txt file in the * distribution for a full listing of individual contributors. * * This program 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 version 2 of the License. * * 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ public class Main { public static String pluralize(String singularNoun) { String pluralNoun; if (singularNoun.endsWith("y") && !singularNoun.endsWith("ay") && !singularNoun.endsWith("ey") && !singularNoun.endsWith("oy")) { pluralNoun = singularNoun.substring(0, singularNoun.length() - 1) + "ies"; } else if (!singularNoun.endsWith("s")) { pluralNoun = singularNoun + "s"; } else { pluralNoun = singularNoun; } return pluralNoun; } }