Here you can find the source of min(String a, String b)
public static String min(String a, String b)
//package com.java2s; /*/*from w ww. j ava 2 s .c o m*/ * Copyright (C) 2015 Daniel Dietsch (dietsch@informatik.uni-freiburg.de) * Copyright (C) 2015 University of Freiburg * * This file is part of the ULTIMATE licence-manager. * * The ULTIMATE licence-manager 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 3 of the License, or * (at your option) any later version. * * The ULTIMATE licence-manager 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 the ULTIMATE licence-manager. If not, see <http://www.gnu.org/licenses/>. * * Additional permission under GNU GPL version 3 section 7: * If you modify the ULTIMATE licence-manager, or any covered work, by linking * or combining it with Eclipse RCP (or a modified version of Eclipse RCP), * containing parts covered by the terms of the Eclipse Public License, the * licensors of the ULTIMATE licence-manager grant you additional permission * to convey the resulting work. */ public class Main { public static String min(String a, String b) { if (a == null && b == null) { return null; } if (a != null && b == null) { return a; } if (b != null && a == null) { return b; } if (Integer.valueOf(a) < Integer.valueOf(b)) { return a; } return b; } }