Java tutorial
//package com.java2s; /** * Copyright (C) 2010-2016 eBusiness Information, Excilys Group * * Licensed under the Apache License, Version 2.0 (the "License"); you may not * use this file except in compliance with the License. You may obtain a copy of * the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed To in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations under * the License. */ public class Main { public static String lowerCaseFirst(String string) { if (string.length() < 2) { return string.toLowerCase(); } String first = string.substring(0, 1).toLowerCase(); String end = string.substring(1, string.length()); return first + end; } }